Top Call Center Services & Voice Services in Sao Paulo

Ratings Updated: September 18, 2026

We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust

Featured

What are Featured Providers?
Hugo Inc.

5.0 28 reviews

$1,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

20% Call Center Services

25% Customer Service Outsourcing

15% Back Office Outsourcing +4 services

10% Content Moderation Services

10% Data Annotation Services

10% Finance & Accounting Outsourcing (FAO)

10% Sales Outsourcing

Hugo Inc. | Top CX Provider is a distinguished company specializing in Contact Center Services, offering comprehensive Customer Support Services across various channels such as email, chat, and phone. The client reviews highlight their adaptability and efficiency, with 100% positive feedback on their seamless integration and ability to enhance customer engagement capabilities, resulting in impressive metrics like a 99.8% accuracy in order processing and fulfillment.

See all 28 projects
Reviews mention Easy to work with
Clients consistently highlight Hugo's approachability and professionalism, noting that they are 'really nice people to work with' and that the collaboration feels 'natural.' Feedback indicates that Hugo's team actively listens to project requirements and maintains open communication, fostering a productive atmosphere. One client emphasized the ease and speed of working with Hugo, stating they are 'easy to work with' and have a streamlined process. Overall, the sentiment regarding Hugo's ease of collaboration is overwhelmingly positive.

Outsourced Accounting & Content Writing for IT Services Firm

4.5 Sep 11, 2023

They actively listened to our project requirements and expectations, ensuring a mutual understanding before proceeding. Regular check-ins and progress updates were the norm, creating a sense of transparency that instilled confidence. Easy, fast, and streamlined. People there know what they’re doing, and they’re just really nice people to work with.
Read Full Review

Accounting Services for Marketing & Venture Capital Firm

5.0 Aug 24, 2023

They actively listened to our project requirements and expectations, ensuring a mutual understanding before proceeding. Regular check-ins and progress updates were the norm, creating a sense of transparency that instilled confidence. The team knows what they’re doing, and they're really easy to work with.
Read Full Review

Scaling & QA Services for Media Company

5.0 Aug 23, 2023

From the moment we engaged with Hugo it felt very natural. They’re very organized and have clearly done this for a lot of great brands. As soon as we started working with them, we were onboarded and up and running in less than 3 weeks which I did not expect. Overall it’s been easy to work with Hugo.
Read Full Review

Call Center Services for Gaming Company

5.0 Aug 17, 2023

Communication played a pivotal role in our partnership, and Hugo excelled in this regard. They provided a range of communication channels including Slack, email, and even phone calls, ensuring that we were always connected and well-informed. The team at Hugo was not only professional but also incredibly easy and fun to work with. Their approachability, responsiveness, enthusiasm, and willingness to adapt to our needs created a collaborative atmosphere that fostered creativity and productivity.
Read Full Review

Read All Reviews

Was this helpful?

3 of 3 Call Center Services reviews are 5 stars

$50,000 – $199,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Back Office Outsourcing for E-Commerce Co
5.0 — Hugo provides back-office outsourcing for an e-commerce company. The team has handled the client's back-office tasks, managed communications and relationships with retailers' networks, and vetted Read more
Read 3 Reviews

Was this helpful?

Industry Experience

Hugo Inc. has garnered positive feedback across multiple industries, including Financial Services, eCommerce, Automotive, Software, Environmental Services, Advertising & Marketing, Information Technology, and Gaming. Their expertise in customer support, operational efficiency, and content management has consistently been highlighted as a strength. Clients noted significant improvements in response times, customer satisfaction, and overall efficiency. Hugo's ability to adapt to various industry needs, coupled with their commitment to high-quality service, positions them as a valuable partner for businesses seeking to enhance their operations.
Read All Reviews

Select Industry to see insights

Financial services eCommerce Automotive Food & Beverages Software Information technology Environmental Services Advertising & marketing Gaming Media

Was this helpful?

Average Project Cost Breakdown

$50,000 to $199,999 (7) $200,000 to $999,999 (6) $10,000 to $49,000 (2)

What Clients Have Said
Clients consistently commend the company for its exceptional value for money, highlighting that Hugo offers high-quality services at competitive rates. One client noted, 'Good value for cost,' while another emphasized their 'ability to scale services without compromising quality.' Many reviews reflect satisfaction with cost reductions and enhanced operational efficiency, with one client praising an '80% improvement in efficiency' compared to in-house hiring. Overall, the sentiment is overwhelmingly positive, indicating that clients perceive Hugo as a cost-effective partner.
Read All Reviews

Was this helpful?
View Profile Visit Website
Helpware CX

4.8 47 reviews

Premier Verified

$5,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

20% Call Center Services

50% Customer Service Outsourcing

10% Back Office Outsourcing +2 services

10% Content Moderation Services

10% Data Annotation Services

Helpware CX is a professional provider of Contact Center Services, specializing in comprehensive Customer Support Services including Inbound and Outbound Call Handling, Phone Support, and Telephonic Support. The company has consistently received high ratings, with reviews highlighting their flexibility, seamless integration, and proactive management. Approximately 90% of reviews noted their impressive ability to customize services, adapt quickly, and maintain effective communication.

See all 47 projects
Reviews mention Patient
Clients have consistently praised Helpware for their patience and professionalism, highlighting their ability to effectively manage client interactions during troubleshooting scenarios. One client noted, 'They’re patient, professional, and polite,' emphasizing the positive relationships Helpware builds with users. Additionally, the team consistently meets performance metrics, demonstrating their commitment to quality service. Overall, the sentiment is highly favorable, with clients appreciating Helpware's dedication to addressing issues promptly and maintaining clear communication.

Customer Service Outsourcing for Parking Software Company

5.0 Feb 12, 2024

We’ve been impressed by how they deal with clients. They’re patient, professional, and polite. Moreover, they’re constantly building relationships with our client base.
Read Full Review

Read All Reviews

Was this helpful?

17 of 21 Call Center Services reviews are 5 stars

$200,000 – $999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for Digital Government Partner
5.0 — Helpware provides call center services for a digital government partner. They offer resources to assist the public on phones and email by responding to inbound calls and reviewing applications. Read more
Read 21 Reviews

Was this helpful?

Industry Experience

Helpware has demonstrated significant expertise across diverse industries, including telecommunications, information technology, healthcare, eCommerce, and financial services. Feedback highlights their strengths in rapid project management, effective customer support, and adaptability to client needs. The telecommunications sector noted increased customer acquisition, IT firms praised Helpware for staff training and support efficiency, while healthcare clients emphasized improved patient engagement. Overall, sentiment is positive, with clients commending Helpware’s collaborative culture and responsiveness, making them a suitable partner across various sectors.
Read All Reviews

Select Industry to see insights

Retail Automotive Telecommunications Information technology Other industries eCommerce Media Advertising & marketing Arts, entertainment & music Education Business services Financial services

Was this helpful?

Average Project Cost Breakdown

$50,000 to $199,999 (12) $10,000 to $49,000 (10) Less than $10,000 (4) $200,000 to $999,999 (3) $1,000,000 to $9,999,999 (3) $10,000,000 + (1)

What Clients Have Said
Clients consistently highlight Helpware's strong value for money, with many noting that their pricing aligns well with budgetary constraints while delivering high-quality services. For instance, a CEO mentioned they chose Helpware due to its 'good value for cost' and 'pricing fit our budget.' Another client emphasized significant cost savings and efficient project management, stating, 'They meet deadlines and stay within the budget.' Overall, feedback reflects a positive sentiment regarding Helpware's affordability and the quality of their work.
Read All Reviews

Was this helpful?
View Profile Visit Website
Select VoiceCom

Not yet reviewed

Verified

$5,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

30% Call Center Services

30% Customer Service Outsourcing

10% Back Office Outsourcing +3 services

10% Finance & Accounting Outsourcing (FAO)

10% IT Staff Augmentation

10% Sales Outsourcing

Select VoiceCom is a provider of Contact Center Services, specializing in customer support, telephonic support, and telemarketing services. Reviews indicate a strong cultural fit with clients, highlighted by impressive communication and project management skills. Notably, Select VoiceCom achieved a 35% increase in customer satisfaction and a 25% boost in sales conversions. Positive feedback predominates, with no significant areas for improvement highlighted by clients.
Reviews mention Open to feedback
The feedback highlights Select VoiceCom's strong openness to client input, with one client noting their 'extremely well organized and communicative team' that responds within 24 hours. Clients appreciate their 'personalized approach' and willingness to adapt, stating they are 'open minded to change.' Overall, the sentiment is highly positive, with no areas for improvement identified at this time.

Recruitment Services for Financial Services Company

4.5 Oct 17, 2025

We have found SVC an extremely well organized and communicative team. They respond within 24 hours and have been very open to suggestions, needs, or requests to make the process work for everyone involved. We love their personalized approach, very easy to speak to, honor what they say they are going to do and are open minded to change.
Read Full Review

Read All Reviews

Was this helpful?

2 of 4 Call Center Services reviews are 5 stars

$200,000 – $999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for Third-Party Management Company
4.5 — Select VoiceCom provides call center services for a third-party management company. The team handles customer calls and supports the client's internal call center. Read more
Read 4 Reviews

Was this helpful?

Industry Experience

Select VoiceCom exhibits strong capabilities across various industries, including Media, Business Services, Advertising & Marketing, Pharmaceuticals, Financial Services, and Legal. Clients commend their reliability, project management, and the ability to deliver measurable results, such as increased sales and improved customer service. Overall, feedback suggests a positive sentiment, particularly in the Financial Services and Legal sectors, where their attention to quality and client needs is highlighted as a key strength.
Read All Reviews

Select Industry to see insights

Media Business services Advertising & marketing Pharmaceuticals Other industries Legal Financial services

Was this helpful?

View projects from:

United States (7) Australia (1)

This provider is fluent in 1 language:

English

This provider is available in 1 time zone:

Eastern Standard Time (EST)

Was this helpful?
View Profile Visit Website
TDCX

4.8 12 reviews

Verified

$100,000+

Undisclosed

10,000+

São Paulo, Brazil

Services provided

10% Call Center Services

50% Customer Service Outsourcing

20% Sales Outsourcing +2 services

10% Business Consulting

10% Content Moderation Services

TDCX is a prominent provider of Contact Center Services, offering comprehensive customer support solutions including inbound and outbound call handling, telemarketing, and customer care services. Reviews indicate a high satisfaction with TDCX's ability to provide scalable, high-quality service, with impressive results in customer satisfaction and service excellence. Approximately 95% of feedback highlights their effective communication, adaptability, and innovative approach to problem-solving.

See all 12 projects
Reviews mention Collaborative
Client feedback highlights TDCX's strong collaborative approach, emphasizing their partnership mentality and responsiveness to challenges. One client noted their ability to adapt quickly to process changes and offer innovative solutions, fostering a sense of teamwork. Another praised the organization's commitment to long-term growth and flexibility, with effective communication and alignment between teams. Overall, the sentiment reflects a positive perception of TDCX's collaborative efforts in supporting client objectives.

Call Center Services for Global Social Media Company

5.0 May 17, 2022

I really enjoy their collaborative approach, and our working relationship really feels like a partnership towards reaching our goals. They are very reactive whenever a technical problem occurs they will quickly come up with alternatives and different temporary workflows to minimize disruptions while issues are fixed. Their analytics teams are also very quick to conduct analysis and come back with valuable insights.
Read Full Review

BPO Services for E-Commerce Company

5.0 Mar 31, 2022

We have weekly syncs and our action items are well-managed over a tracker. The Operations manager is also on top of things and very open to ideas and collaboration to improve performance for both the team's well-being and business needs. In addition, the Operations manager is very easy to reach and fast in response.
Read Full Review

Read All Reviews

Was this helpful?
6 of 6 Call Center Services reviews are 5 stars

$1,000,000 – $9,999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Customer Deployment for Consumer Products Company
5.0 — TDCX supports customer experience deployment services for a consumer products company. They are also tasked with maintaining their own unique internal culture. Read more
Read 6 Reviews

Was this helpful?

Average Project Cost Breakdown

$1,000,000 to $9,999,999 (2) $200,000 to $999,999 (1) $10,000,000 + (1)

What Clients Have Said
Clients have expressed a generally positive sentiment regarding TDCX's cost and value for money. Feedback highlights their ability to deliver high-quality services while maintaining competitive pricing, as noted by a vendor manager who emphasized TDCX's best value in terms of cost and quality. However, some clients suggested that pricing could be more competitive. Overall, TDCX is regarded as a reliable partner that provides significant value, often exceeding expectations in service delivery.
Read All Reviews

Was this helpful?

São Paulo, Brazil

Avenida Paulista 1374 – 6th floor, Bela Vista
São Paulo, Brazil 01310-000
101 - 150

See All Locations (18)

Was this helpful?
View Profile Visit Website
Customer Umbrella

5.0 20 reviews

$1,000+

< $25 / hr

250 - 999

São Paulo, Brazil

Services provided

10% Call Center Services

10% Back Office Outsourcing

10% Content Moderation Services +7 services

10% Customer Service Outsourcing

10% Data Annotation Services

10% Employer of Record (EOR) Services

10% PEO/Employee Leasing

10% Recruiting

10% Sales Outsourcing

10% Staffing

Customer Umbrella is a proficient provider of Contact Center Services, excelling in Customer Support Services, Inbound and Outbound Call Center, and Telephonic Support. Reviewers consistently praise their professionalism and seamless integration into client operations, with 100% positive feedback highlighting their outstanding customer service and effective communication. Their expertise in call handling and proactive problem-solving significantly enhances client satisfaction and operational efficiency.

See all 20 projects
Reviews mention Team players
Clients consistently describe Customer Umbrella as a true extension of their teams, highlighting effective collaboration and seamless integration into their operations. One client noted their proactive approach and dedication, which fostered a culture of mutual respect. The overall sentiment is overwhelmingly positive, with clients appreciating the team's commitment to excellence and adaptability, stating that Customer Umbrella exceeded expectations and became essential partners in their success.

Customer Support Services for Gaming Machines Company

5.0 Feb 17, 2024

They have fantastic communication skills and were very aware of our needs and priorities. Working with them was a genuine team effort because they were fast to handle any concerns and receptive to our suggestions.
Read Full Review

Read All Reviews

Was this helpful?
3 of 4 Call Center Services reviews are 5 stars

Less than $10,000 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Customer Support Services for Sports Betting & Gambling Firm
5.0 — Customer Umbrella provided customer support services for a sports betting and gambling firm. Their responsibilities included outbound calls, live chat support, and answering customer email Read more
Read 4 Reviews

Was this helpful?

View projects from:

United States (5) Cyprus (2) Germany (2) Canada (1) England (1)

Was this helpful?

São Paulo, Brazil

Av. Paulista Bela Vista
São Paulo, Brazil 01310
50 - 75

+359885379385

See All Locations (5)

Was this helpful?
View Profile
Featured

What are Featured Providers?
SupportYourApp

4.8 86 reviews

Verified

$1,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

30% Call Center Services

30% Customer Service Outsourcing

20% AI Agents +2 services

15% Back Office Outsourcing

5% Data Annotation Services

SupportYourApp is a leading provider of Contact Center Services, specializing in Customer Support Services, including Phone Support and Call Handling. Over 90% of reviewers praise their responsiveness, professionalism, and ability to manage high volumes of tickets, with many highlighting their project management skills and adaptability in offering 24/7 Customer Service Center support. The company consistently delivers value, maintaining a strong reputation for quality and client satisfaction.

See all 86 projects
Reviews mention Exceptional performance
Clients consistently praise SupportYourApp for their exceptional performance, highlighting their efficiency in recruitment and customer communication. One client noted that 100% of candidates hired successfully completed their probation, while another reported a significant decrease in churn rate due to improved customer engagement. The flexibility and quick adaptation of SupportYourApp's team were particularly impressive, with one client stating their expectations were exceeded by 110%. Overall, the sentiment reflects a strong satisfaction with their services and outcomes.

Outsourced Back-Office/Customer Service for Wellness App Co

5.0 Dec 23, 2025

Support Your App demonstrated strong project management throughout the engagement. Deliverables and support tasks were consistently handled on time, and any issues that arose were addressed quickly and effectively. Communication was clear, organized, and responsive, allowing work to progress without delays or confusion.
Read Full Review

Recruitment & HR Outsourcing for Media Company

5.0 May 22, 2026

SupportYourApp has helped us hire more than 10 people. The team has improved our recruitment speed and the quality of candidates. For example, 100% of the candidates have successfully completed the probation period.
Read Full Review

Read All Reviews

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (19) $50,000 to $199,999 (11) Less than $10,000 (7) $1,000,000 to $9,999,999 (2) $200,000 to $999,999 (1)

What Clients Have Said
Clients have generally expressed satisfaction with SupportYourApp's pricing and perceived value, noting that their costs align well with budgets. For instance, a client from Lopay highlighted their good value for the cost, while another from Fourth Estate appreciated their budget-friendly pricing. However, some negative feedback regarding service quality and accountability suggests that not all clients felt they received the expected value, particularly when issues arose. Overall, the sentiment leans towards positive, but with caveats regarding service consistency.
Read All Reviews

Was this helpful?

More responsive than most other service providers

SupportYourApp is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
Get in Touch

Was this helpful?

View projects from:

United States (25) Ukraine (7) Israel (6) England (5) Germany (3) Netherlands (3) Czech Republic (2) Denmark (2) Sweden (2) Luxembourg (1) Norway (1) Italy (1) Austria (1) Malta (1) Greece (1) New Zealand (1) Ireland (1) Poland (1) Russia (1) France (1) Switzerland (1) Costa Rica (1) Canada (1) Bahamas (1)

Was this helpful?
View Profile Visit Website
six eleven global services

4.8 10 reviews

Verified

$1,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

40% Call Center Services

30% Back Office Outsourcing

30% Customer Service Outsourcing

Six Eleven Global Services is a customer support services provider specializing in call handling and customer service operations. The company has garnered positive feedback, with reviewers highlighting their exceptional responsiveness and alignment with company values. A significant 100% of reviewers commend their swift one-hour response times and the cultural fit, without any noted areas for improvement.

See all 10 projects
Reviews mention Professional
Clients commend Six Eleven Global Services for their high level of professionalism, highlighting effective communication and management. One client noted their 'high quality, professional management, and effective communication' as particularly impressive. Additionally, they maintained project accuracy over 95%, demonstrating reliability. Clients appreciated timely responses to requests and detailed feedback reviews, indicating a strong commitment to service excellence. Overall, the sentiment surrounding professionalism is overwhelmingly positive.

BPO Services for Logistics & Supply Chain Company

5.0 Apr 25, 2023

Six eleven always replies on time. Whatever being requested, whenever being asked, they will give responses. Six eleven reviews all the feedbacks in detail, and always take effective solutions to solve the problem. The team provides the best services they can and communicate actively & politely for any changes.
Read Full Review

Read All Reviews

Was this helpful?

1 of 1 Call Center Services reviews are 5 stars

$50,000 – $199,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for E-Commerce Company
5.0 — Six eleven global services provides call center services to help an e-commerce company communicate with their customers. The vendor's team asks the end customers about their product experience. Read more
Read 1 Review

Was this helpful?

More responsive than most other service providers

six eleven global services is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
Get in Touch

Was this helpful?

View projects from:

United States (6) Canada (1) Malaysia (1)

Was this helpful?
View Profile Visit Website
Simply Contact

4.8 26 reviews

$1,000+

< $25 / hr

250 - 999

Serves Sao Paulo, Brazil

Services provided

35% Call Center Services

55% Customer Service Outsourcing

10% Back Office Outsourcing

Simply Contact is a professional contact center services company specializing in inbound and outbound call handling, customer support services, and telephonic support across various languages and channels. Reviews indicate a remarkable satisfaction rate, with over 95% of feedback being positive, highlighting their efficiency, adaptability, and exceptional customer care services. Notably, Simply Contact achieved a 30-45% increase in customer satisfaction scores for multiple clients.

See all 26 projects
Reviews mention Flexible
The overall sentiment regarding flexibility in the feedback received from clients is highly positive. Clients consistently praised Simply Contact for their adaptability and responsiveness to project requirements. One CEO noted their 'flexible approach and transparent work process,' while another remarked on their 'great interaction' and 'pleasant, flexible, and patient' demeanor. Additionally, a CMO highlighted their team's 'flexibility of cooperation model,' emphasizing how it contributed to a successful partnership. This feedback indicates that Simply Contact effectively meets diverse client needs with ease.

Customer Service Support for Public Interest Tech Firm

5.0 Jan 19, 2024

They were great communicators and adaptive to our needs. They also moved quickly. Great interaction with their team - very pleasant, flexible, and patient with us.
Read Full Review

Call Center Services for Social Media Monitoring Tool

5.0 May 9, 2023

Simply Contact's project management was excellent. They are highly responsive to our needs and feedback. I'd say their team is professional, efficient, and flexible, and they work closely with us to ensure that our goals and objectives are met.
Read Full Review

Call Center Services for Wheelchair Rental System

4.5 May 1, 2023

Simply Contact's dedication to quality and cost-efficiency is truly remarkable. Their flexible approach and transparent work process, combined with their commitment to delivering the highest level of customer service, make them an invaluable partner for WheelShare.
Read Full Review

Customer Support Services for SaaS Company

5.0 Apr 25, 2023

The workflow between our team and Simply Contact was highly effective. Their project manager always provides timely updates and ensures a transparent workflow. We were also impressed by Simply Contact's flexibility in meeting our specific requirements.
Read Full Review

Call Center Services for Cosmetic & Beauty Brand

5.0 Feb 28, 2021

Simply Contact team is very flexible and reliable, they always strive to provide the best service, and implement the most efficient solutions. Besides the great quality of services, Simply Contact provides transparent workflow and communication.
Read Full Review

Read All Reviews

Was this helpful?

12 of 15 Call Center Services reviews are 5 stars

$200,000 – $999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Staffing for Government Helpline
5.0 — Simply Contact provides staff to a government hotline's team; they hire and train call center agents to cover workflows around the clock. They've organized the hotline's IT structure, monitoring, Read more
Read 15 Reviews

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (6) $1,000,000 to $9,999,999 (4) $50,000 to $199,999 (3)

What Clients Have Said
Overall, client feedback indicates that Simply Contact offers good value for money, with several reviews highlighting their competitive pricing and cost efficiency. For instance, one client noted they selected Simply Contact due to its 'good value for cost,' while another emphasized that their pricing fit their budget. However, there were mentions of areas for improvement in their pricing strategy. The general sentiment reflects satisfaction with the service quality relative to the costs incurred.
Read All Reviews

Was this helpful?

View projects from:

Ukraine (8) United States (7) England (4) Israel (1) Italy (1) Latvia (1) Philippines (1)

Was this helpful?
View Profile Visit Website
Labora

5.0 1 review

$1,000+

Undisclosed

10 - 49

São Paulo, Brazil

Services provided

50% Customer Service Outsourcing

50% Sales Outsourcing

Labora is a business process outsourcing company specializing in connecting influencers with travelers. The reviews highlight their effective project management, with timely deliverables and excellent response times. While clients appreciate their dedication, some suggest incorporating AI more effectively. Overall feedback is predominantly positive, underscoring their strong cultural fit and commitment to client projects.

See all 1 projects

Industry Experience

Labora has demonstrated expertise in the Information Technology sector, particularly in facilitating connections between influencers and travelers through Business Process Outsourcing strategies. Clients have praised their timely delivery, strong communication, and commitment to project success. Overall sentiment within this industry is positive, highlighting Labora's ability to enhance user experiences and foster community engagement. Potential clients in travel and influencer marketing may find Labora particularly well-suited for their projects.
Read All Reviews

Select Industry to see insights

Information technology

Was this helpful?

Average Project Cost Breakdown

$50,000 to $199,999 (1)

What Clients Have Said
Clients have noted that Labora offers good value for money, with timely deliverables and responsive communication. One client highlighted their project management effectiveness, stating, "Most of their deliveries were on time" and praised their quick response times. Overall, the sentiment is positive, with clients appreciating the company's commitment to their projects, although there are suggestions for improvement, such as better integration of AI technology.
Read All Reviews

Was this helpful?

View Profile

Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

Get My Matches

Combine Global Recruitment

5.0 1 review

$1,000+

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

30% Recruiting

15% HR Outsourcing

15% Staffing +4 services

10% Customer Service Outsourcing

10% Executive Search

10% Recruitment Process Outsourcing

10% Sales Outsourcing

Combine Global Recruitment specializes in structuring management teams for fast-growing companies and creating efficient organizational structures. Their reviews highlight a seamless workflow with prompt, constructive communication, and comprehensive candidate data, facilitating informed decision-making. The feedback is overwhelmingly positive, with clients praising their strategic approach and effectiveness in meeting ambitious growth objectives. The company's ability to quickly grasp core business needs is particularly impressive.

See all 1 projects

Industry Experience

Combine Global Recruitment has demonstrated expertise in the Logistics & Supply Chain sector, particularly with fast-growing companies like Nowports. Feedback highlights their strategic approach to building effective teams and company culture, resulting in solid organizational structures and quality candidate pipelines. Clients commend their ability to provide comprehensive data for decision-making and effective communication throughout the engagement. Overall, sentiment in this industry is highly positive, indicating a strong fit for organizations seeking robust recruitment solutions.
Read All Reviews

Select Industry to see insights

Logistics & Supply Chain

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (1)

What Clients Have Said
Clients have praised Combine Global Recruitment for their holistic approach and strategic insights, which are perceived as valuable in meeting fast growth demands. One client noted the comprehensive candidate data provided, aiding in informed decision-making. Overall, the sentiment reflects satisfaction with the cost-to-value ratio, highlighting that the service's quality justifies the investment. The direct involvement of senior leadership, such as the CEO, was also appreciated, enhancing the perceived value.
Read All Reviews

Was this helpful?

More responsive than most other service providers

Combine Global Recruitment is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
Get in Touch

Was this helpful?

View Profile
Apex America

Not yet reviewed

$10,000+

Undisclosed

10,000+

Sao Paulo, Brazil

Services provided

40% Call Center Services

20% Back Office Outsourcing

20% Customer Service Outsourcing +3 services

10% Content Moderation Services

5% Business Consulting

5% Robotics Process Automation

Apex America is a telephone answering service. Established in 2003, the firm is in Córdoba, Argentina and ARW, Argentina. Their services include Call Center Services and Back Office Outsourcing.
Read more

Sao Paulo, Brazil

100 Avenida Alfredo Egídio de Souza Aranha
Sao Paulo, Brazil 04726-170
751 - 1000

See All Locations (17)

Was this helpful?

View Profile
Amaro Group

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

Amaro Group is a call center service. They are based in Sao Paulo, Brazil and have midsize team. They provide Call Center Services.
Read more

View Profile
InHouse Contact Center and Information Technology

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Santo Amaro, Brazil

Services provided

100% Call Center Services

Headquartered in Santo Amaro, Brazil, InHouse Contact Center and Information Technology is a call center company. They provide Call Center Services and were founded in 1988.
Read more

View Profile
Featured

What are Featured Providers?
Virtual Sales Limited

4.8 20 reviews

Premier Verified

$1,000+

$50 - $99 / hr

10 - 49

Serves Sao Paulo, Brazil

Services provided

50% Call Center Services

50% Sales Outsourcing

Virtual Sales Limited is a distinguished provider of Contact Center Services, specializing in Outbound Call Center and Telemarketing Services. The company consistently garners positive feedback, with 100% of reviewers praising their project management and timely communication. Clients highlight their industry expertise and impressive ability to generate leads and appointments, with no reported areas for improvement, underscoring their exceptional service delivery and professionalism.

See all 20 projects
Reviews mention Easy to work with
Clients consistently commend Virtual Sales Limited for being easy to work with, highlighting their proactive approach and adaptability. One client noted they felt like an extension of their team, maintaining clear communication and a consistent weekly rhythm. Another emphasized the company's desire to learn and improve, stating they provided good initial results. Overall, the sentiment reflects strong satisfaction with the collaborative experience and project management.

Lead Generation Services for IT Managed Service Provider

4.0 Dec 10, 2023

They are easy to deal with, provide good initial results, and possess a desire to learn and improve.
Read Full Review

Sales Outsourcing for IT Company

5.0 Feb 24, 2026

What stood out most was how much VSL felt like an extension of our team. They were proactive, easy to work with, and kept outreach moving with a consistent weekly rhythm and clear follow-ups.
Read Full Review

Read All Reviews

Was this helpful?

3 of 6 Call Center Services reviews are 5 stars

2 new reviews for Call Center Services in past 6 months

Less than $10,000 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Lead Generation Services for SaaS Company
4.5 — A SaaS company has hired Virtual Sales Limited for lead generation services. They source relevant data and execute an outbound call campaign to help the client generate in-target meetings with Read more
Read 6 Reviews

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (8) Less than $10,000 (3) $50,000 to $199,999 (1)

What Clients Have Said
Clients consistently highlight Virtual Sales Limited's excellent value for money, with multiple reviews noting that their pricing fits within budget while delivering significant results. One client emphasized the 'good value for cost' and another mentioned they 'booked 12 meetings' with a '5% conversion rate,' showcasing effective lead generation. Overall, the sentiment is overwhelmingly positive, with clients expressing satisfaction with the cost-effectiveness and quality of service provided.
Read All Reviews

Was this helpful?

View projects from:

England (9) United States (4) Bulgaria (1) Croatia (1) France (1)

Was this helpful?
View Profile Visit Website
Valoris Center

4.9 15 reviews

Premier Verified

$1,000+

< $25 / hr

250 - 999

Serves Sao Paulo, Brazil

Services provided

50% Call Center Services

20% Customer Service Outsourcing

15% Back Office Outsourcing +1 service

15% CRM Consulting and SI

Valoris Center is a company specializing in Contact Center Services, offering a comprehensive suite of solutions, including Inbound and Outbound Call Center, Customer Support Services, and Telemarketing Services. Reviews indicate a strong emphasis on punctuality, flexibility, and customer care, with over 85% client satisfaction ratings and notable mentions for their proactive and adaptable approach.

See all 15 projects

7 of 9 Call Center Services reviews are 5 stars

2 new reviews for Call Center Services in past 6 months

$10,000 – $49,000 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for Retail Company
5.0 — Valoris Center provided call center services for a retail company. The team managed customer inquiries and issues via phone and email and supported the client's e-commerce platform and order Read more
Read 9 Reviews

Was this helpful?

Industry Experience

Valoris Center has demonstrated expertise across several industries, including Financial Services, Retail, eCommerce, Automotive, and Business Services. Clients commend their proactive approach, customer-centric solutions, high responsiveness, and impressive performance metrics, such as customer satisfaction rates exceeding 90%. The strong alignment of values and flexibility to adapt to industry-specific needs highlight their strengths, making them a suitable partner for projects in these sectors.
Read All Reviews

Select Industry to see insights

Other Industry Financial services eCommerce Business services Arts, entertainment & music Automotive Consumer Products Retail Other industries

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (1) $50,000 to $199,999 (1)

What Clients Have Said
Clients consistently highlight Valoris Center's strong value for money, noting that their pricing aligns well with budget expectations. For example, one client mentioned selecting Valoris due to its 'good value for cost' and 'pricing fit our budget.' Another stated that Valoris offered a 'price-performance ratio in line with our expectations.' Overall, the sentiment reflects satisfaction with the services provided relative to the costs incurred, reinforcing their reputation as a cost-effective partner.
Read All Reviews

Was this helpful?

View projects from:

Romania (8) Austria (1) Croatia (1) Italy (1) Russia (1)

Was this helpful?

View Profile Visit Website
A-SALES AB

4.8 68 reviews

Premier Verified

$1,000+

< $25 / hr

50 - 249

Serves Sao Paulo, Brazil

Services provided

10% Call Center Services

80% Sales Outsourcing

10% Email Marketing

A-SALES AB is a Contact Center Services company specializing in outbound sales and pipeline generation. The company receives positive feedback for their organized project management and ability to tailor outreach to specific industries and buyer personas. Approximately 87.5% of reviews highlight their effective communication and targeted approach. Clients appreciate their value for cost and effectiveness in booking 10-22 qualified meetings per month.

See all 68 projects
Reviews mention Open to feedback
Clients have consistently praised A-SALES AB for their responsiveness and openness to feedback. One client noted their 'extremely responsive' nature and the effectiveness of bi-weekly performance reviews to enhance strategies. Another highlighted their 'active' approach to problem-solving and willingness to adjust outreach based on client input. Overall, the sentiment reflects a strong appreciation for the company's adaptability and commitment to continuous improvement, fostering a collaborative environment that leads to successful project outcomes.

Call Center Services & Market Research for Software Company

5.0 Aug 14, 2024

Overall, the team is responsive, receptive to feedback, and very helpful in terms of data iteration. The team is always open to feedback, if there is room for improvement they don’t take it the wrong way and try to figure out the best solution to move forward and establish the greatest results.
Read Full Review

Sales Outsourcing & Lead Generation for Compliance Platform

5.0 Feb 25, 2025

A-SALES AB has demonstrated strong project management capabilities, consistently delivering work on time. Their structured sales process ensures that: Lead lists, outreach campaigns, and scheduled meetings are executed within agreed-upon timelines. They are highly responsive to feedback, making adjustments to sales messaging, lead qualification criteria, and outreach strategies as needed. Communication is efficient and proactive, with regular check-ins to align sales development efforts with our company's objectives.
Read Full Review

Outreach Strategy for Government Consulting Co

5.0 Mar 14, 2025

The team is very open to feedback and responsive. If a problem ever came up, they're actively doing their absolute best to solve it.
Read Full Review

Lead Gen, Qualification & Appointment for Home Care Company

5.0 May 29, 2025

Bi-weekly performance review and brainstorming sessions with the vendor to review approach (KPI based) and improve the same. A-SALES AB's constant improvement, taking feedback, and access to their owner and dedicated team are outstanding.
Read Full Review

Read All Reviews

Was this helpful?

16 of 16 Call Center Services reviews are 5 stars

Less than $10,000 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Sales Outsourcing Services for E-Commerce Fulfillment Co
5.0 — A-SALES AB provides sales outsourcing services for an e-commerce fulfillment company. The team is responsible for helping the client break into the Western market through cold emails and cold calls. Read more
Read 16 Reviews

Was this helpful?

Industry Experience

A-SALES AB has demonstrated expertise across various industries, including Information Technology, Business Services, Advertising & Marketing, and Healthcare. Feedback highlights their strengths in lead generation, appointment setting, and market penetration strategies. Clients across sectors report significant improvements in qualified meetings and pipeline growth. Overall, sentiment is positive, particularly within IT and Business Services, where their tailored approaches and responsive project management have been notably effective.
Read All Reviews

Select Industry to see insights

Construction Consumer Products Government Manufacturing Education Financial services Healthcare Software Supply Chain, Logistics, and Transport Human Resources Advertising & marketing IT Services Consulting Business services Information technology

Was this helpful?

Average Project Cost Breakdown

Less than $10,000 (20) $10,000 to $49,000 (14)

What Clients Have Said
Clients consistently perceive A-SALES AB as offering excellent value for money, with many noting their competitive pricing and effective results. One client highlighted that they chose A-SALES due to their 'good value for cost' and 'high ratings'. Another mentioned they received '21 meetings with furniture manufacturers' after investing less than $10,000. Overall, the sentiment is positive, with clients appreciating the return on investment and quality of leads generated.
Read All Reviews

Was this helpful?
View Profile Visit Website
AHEAD Infraestrutura para Contact Centers

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

São Paulo, Brazil

Services provided

100% Call Center Services

Established in 2007, AHEAD Infraestrutura para Contact Centers is a midsize answering service company. Their services include Call Center Services.
Read more

View Profile
Daleth AC Ambiente Colaborativo

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

Founded in 2008, Daleth AC Ambiente Colaborativo, a midsize answering service, is located in Sao Paulo, Brazil. Their team provides Call Center Services.
Read more

View Profile
Featured

What are Featured Providers?

Appointment Setter Online

5.0 54 reviews

Verified

$1,000+

Undisclosed

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

20% Call Center Services

55% Sales Outsourcing

25% Back Office Outsourcing

Appointment Setter Online is a professional Call Center Services company specializing in outbound lead generation, appointment scheduling, and telephonic support. The reviews reflect a 100% positive feedback rate, highlighting their professionalism, consistent project management, and ability to deliver qualified appointments. Approximately 80% of reviewers praised their persistence and adaptability in aligning with client needs.

See all 54 projects

Industry Experience

Appointment Setter Online has demonstrated expertise across various industries, including Electric, Education, Automotive, Legal, and Construction. Clients highlighted their strengths in lead qualification, appointment setting, and tailored communication, resulting in improved conversions and efficiency. Overall sentiment is positive, with particular praise for their adaptability and understanding of industry-specific needs. Their impact is notably strong in sectors like Education and Automotive, making them a suitable choice for clients seeking effective appointment setting solutions.
Read All Reviews

Select Industry to see insights

Construction Agriculture Electric Financial services Consumer products & services Software Dental Roofing Business services Research Publishing Non-profit Medical Advertising & marketing Nonprofit Home Services Legal Automotive Education

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (24) $50,000 to $199,999 (8) Less than $10,000 (1) $200,000 to $999,999 (1)

What Clients Have Said
Clients consistently commend Appointment Setter Online for their exceptional value for money and competitive pricing. Multiple testimonials highlight the company's ability to deliver qualified leads and efficiently manage appointments, resulting in improved conversion rates. For instance, one client noted a 40% increase in qualified appointments, while another mentioned a significant rise in scheduled consultations. Overall, the sentiment reflects strong satisfaction with the cost-effectiveness of their services, with many clients indicating they received more than they paid for.
Read All Reviews

Was this helpful?

More responsive than most other service providers

Appointment Setter Online is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
Get in Touch

Was this helpful?

$1,000 1 Full Time Appointment Setter $1,800 2 Full Time Appointment Setters $4,500 5 Full Time Appointment Setters

Award Winning Appointment Setting Team
Helps businesses consistently fill their sales calendar with qualified prospects. We specialize in scheduling appointments through professional outreach via calls, texts, and emails, customized to your industry and target market. Our trained appointment setters ensure every lead is warmed up and ready for your sales team.
View Packages

Was this helpful?

View Profile Visit Website
JobHome

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

100% Call Center Services

JobHome is a telephone answering service. The Sao Paulo, Brazil-based agency was founded in 2017. Their services include Call Center Services.
Read more

View Profile
BlueLab

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

100% Call Center Services

BlueLab is a call center. Located in Sao Paulo, Brazil, the team offers Call Center Services.
Read more

View Profile
ALKES

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

ALKES is an answering service. Headquartered in Sao Paulo, Brazil, the company focuses on Call Center Services.
Read more

View Profile
ARC TELECOM

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

100% Call Center Services

Located in Sao Paulo, Brazil, ARC TELECOM is a small call center service. Their services include Call Center Services.
Read more

View Profile
i9 Contact Center

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

Founded in 2009, i9 Contact Center is a midsize answering service company based in Sao Paulo, Brazil. Their team focuses on Call Center Services.
Read more

View Profile
Top Use - Headsets

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Cotia , Brazil

Services provided

100% Call Center Services

Top Use - Headsets is an answering service headquartered in Cotia , Brazil. Founded in 1996, the team focuses on Call Center Services.
Read more

View Profile
Diallink

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

SAO PAULO, Brazil

Services provided

100% Call Center Services

Diallink is a call center company. In SAO PAULO, Brazil, the agency was founded in 2006. Their services include Call Center Services.
Read more

View Profile
Neobpo

Not yet reviewed

Undisclosed

Undisclosed

10,000+

São Paulo, Brazil

Services provided

40% Call Center Services

30% Back Office Outsourcing

10% Business Consulting +2 services

10% Digital Strategy

10% IT Managed Services

Neobpo is a call center service. Launched in 2017, the team specializes in Call Center Services and Back Office Outsourcing. The company is based in São Paulo, Brazil.
Read more

View Profile
Vermont XCenter

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

Sao Paulo, Brazil

Services provided

40% Call Center Services

40% Sales Outsourcing

10% Business Consulting +1 service

10% IT Strategy Consulting

Vermont XCenter, a midsize answering service company, is based in Sao Paulo, Brazil. Their services include Call Center Services and Sales Outsourcing.
Read more

View Profile
AG Call Center

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

40% Call Center Services

30% Customer Service Outsourcing

30% Sales Outsourcing

AG Call Center is a small phone answering service launched in 2002. Their team specializes in Call Center Services and Customer Service Outsourcing.
Read more

View Profile
Altio BPO and Technology

Not yet reviewed

$5,000+

< $25 / hr

250 - 999

sao paulo, Brazil

Services provided

40% Call Center Services

50% Custom Software Development

10% Web Design

Founded in 2011, Altio BPO and Technology is a software development firm and call center service. The firm focuses on Custom Software Development and Call Center Services, and is midsize.
Read more

View Profile
BYG Advantage

Not yet reviewed

$100,000+

$100 - $149 / hr

10 - 49

Sao Paulo, Brazil

Services provided

70% Sales Outsourcing

30% Marketing Strategy

BYG Advantage is a Sales Outsourcing company located in New York, New York and Singapore, Singapore. The team offers Sales Outsourcing and Marketing Strategy.
Read more

Sao Paulo, Brazil

Av. Eng. L. C. Berrini 105 - Suite 1014 CEP
Sao Paulo, Brazil 04571-010
1

+1 (845) 770-7526

See All Locations (8)

Was this helpful?

View Profile
Leadmedia

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

20% CRM Consulting and SI

20% Ecommerce Marketing

20% Email Marketing +2 services

20% Pay Per Click

20% Sales Outsourcing

Small Email Marketing company Leadmedia, is headquartered in Sao Paulo, Brazil. Their services include Email Marketing and Pay Per Click.
Read more

View Profile
Novatrade Brasil

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

10% Call Center Services

50% Logistics & Supply Chain Consulting

40% Business Consulting

Launched in 2012, Novatrade Brasil is a Logistics & Supply Chain Consulting company. The agency focuses on Logistics & Supply Chain Consulting and Business Consulting.
Read more

View Profile
Paulo Leads

Not yet reviewed

$5,000+

$100 - $149 / hr

2 - 9

Valinhos, Brazil

Services provided

30% BI & Big Data Consulting & SI

30% Sales Outsourcing

10% AI Agents +3 services

10% AI Consulting

10% AI Development

10% Generative AI

Paulo Leads is a big data analytics company. The team offers BI & big data consulting & SI and Sales Outsourcing and is based in Valinhos, Brazil.
Read more

View Profile
Talkover

Not yet reviewed

$10,000+

Undisclosed

2 - 9

São José dos Campos, Brazil

Services provided

35% Call Center Services

35% AI Agents

30% Transcription

Founded in 2025, Talkover is an AI Agents company. The team focuses on AI Agents and Call Center Services.
Read more

View Profile
Quality Contact Center

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Taboão da Serr, Brazil

Services provided

100% Call Center Services

Quality Contact Center, a small answering service, is based in Taboão da Serr, Brazil. Their services include Call Center Services.
Read more

View Profile
Kindico Digital Marketing Agency Ltd

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

50% Affiliate Marketing

50% Sales Outsourcing

Kindico Digital Marketing Agency Ltd is an Affiliate Marketing and Sales Outsourcing company founded in 2016. The team specializes in Affiliate Marketing and Sales Outsourcing.
Read more

View Profile
Maromatel - Vivo Empresas

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

40% Call Center Services

50% Business Consulting

10% Customer Service Outsourcing

Business Consulting company Maromatel - Vivo Empresas is located in Sao Paulo, Brazil. They offer Business Consulting and Call Center Services and were established in 2002.
Read more

View Profile
Ayty Tech

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

São Paulo, Brazil

Services provided

24% Call Center Services

20% CRM Consulting and SI

20% IT Strategy Consulting +3 services

16% Customer Service Outsourcing

10% E-Commerce Development

10% IT Managed Services

Founded in 2008, Ayty Tech is a midsize answering service company. Their services include Call Center Services and CRM consulting and SI.
Read more

São Paulo, Brazil

Av. Brigadeiro Faria Lima, 1685, Conj.3C
São Paulo, Brazil 01452-001

+ 55.11.3522.9211

See All Locations (2)

Was this helpful?

View Profile
Bizpro Processos de Negócios

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Sao Paulo, Brazil

Services provided

20% Call Center Services

50% Customer Service Outsourcing

30% Back Office Outsourcing

Bizpro Processos de Negócios is a Customer Service Outsourcing company. The firm is in Sao Paulo, Brazil. Their team provides Customer Service Outsourcing and Back Office Outsourcing.
Read more

View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

In-depth client interviews and ratings
Comprehensive project details
Market presence
Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Top Call Center Services & Voice Services in Sao Paulo

List of the Top Sao Paulo Call Center Companies & Voice Services

Reviews mention Easy to work with

Outsourced Accounting & Content Writing for IT Services Firm

Accounting Services for Marketing & Venture Capital Firm

Scaling & QA Services for Media Company

Call Center Services for Gaming Company

Back Office Outsourcing for E-Commerce Co

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Patient

Customer Service Outsourcing for Parking Software Company

Call Center Services for Digital Government Partner

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Open to feedback

Recruitment Services for Financial Services Company

Call Center Services for Third-Party Management Company

Industry Experience

Select Industry to see insights

Reviews mention Collaborative

Call Center Services for Global Social Media Company

BPO Services for E-Commerce Company

Customer Deployment for Consumer Products Company

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Team players

Customer Support Services for Gaming Machines Company

Customer Support Services for Sports Betting & Gambling Firm

Reviews mention Exceptional performance

Outsourced Back-Office/Customer Service for Wellness App Co

Recruitment & HR Outsourcing for Media Company

Average Project Cost Breakdown

What Clients Have Said

SupportYourApp is very responsive

Reviews mention Professional

BPO Services for Logistics & Supply Chain Company

Call Center Services for E-Commerce Company

six eleven global services is very responsive

Reviews mention Flexible

Customer Service Support for Public Interest Tech Firm

Call Center Services for Social Media Monitoring Tool

Call Center Services for Wheelchair Rental System

Customer Support Services for SaaS Company

Call Center Services for Cosmetic & Beauty Brand

Call Center Staffing for Government Helpline

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Combine Global Recruitment is very responsive

Reviews mention Easy to work with

Lead Generation Services for IT Managed Service Provider

Sales Outsourcing for IT Company

Lead Generation Services for SaaS Company

Average Project Cost Breakdown

What Clients Have Said

Call Center Services for Retail Company

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Open to feedback

Call Center Services & Market Research for Software Company

Sales Outsourcing & Lead Generation for Compliance Platform

Outreach Strategy for Government Consulting Co

Lead Gen, Qualification & Appointment for Home Care Company

Sales Outsourcing Services for E-Commerce Fulfillment Co

Industry Experience

Select Industry to see insights