Top Performance Testing Services
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UndisclosedUndisclosed50 - 249Walnut Creek, CA
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ASD Global-Public Sector is a software development firm in Walnut Creek, California. They specialize in Custom Software Development and ERP consulting and SI.
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UndisclosedUndisclosed50 - 249Köln, Germany
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Application Testing company Appmatics provides Application Testing. They are in Köln, Germany.
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$1,000+$50 - $99 / hr50 - 249
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Savvy Brains Proprietary Limited is a web development firm established in 2015. The midsize team provides Web Development and Mobile App Development.
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UndisclosedUndisclosed2 - 9
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Located in Atlanta, Georgia, Blue Crane Technology is an Application Testing company. They provide Application Testing.
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UndisclosedUndisclosed2 - 9Bloomington, IL
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Small Application Testing company JVR Tech LLC, is headquartered in Bloomington, Illinois and Hollywood, Florida. Their services include Application Testing and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9Edison, NJ
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Testree is an Application Testing company. They focus on Application Testing and were founded in 2005.
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UndisclosedUndisclosed2 - 9Wrocław, Poland
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Testberries is an Application Testing company launched in 2008. The team provides Application Testing and Corporate Training & Coaching.
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UndisclosedUndisclosed2 - 9Gilbert, AZ
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Prism Technologies LLC is a Gilbert, Arizona-based software development company and Application Testing company. They focus on Custom Software Development and Application Testing.
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UndisclosedUndisclosed2 - 9Toronto, Canada
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Torrential Consulting is an e-commerce development firm. They focus on E-Commerce Development and Application Testing and were established in 2008. The agency is in Toronto, Canada.
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UndisclosedUndisclosed2 - 9
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Codecov is an Application Testing company. Launched in 2015, the team offers Application Testing and IT managed services. The company is in San Francisco, California.
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UndisclosedUndisclosed2 - 9Peoria, AZ
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SQA Labs Inc. Is an Application Testing company. The team specializes in Application Testing and is headquartered in Peoria, Arizona.
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$5,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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Based in Yerevan, Armenia, HiLearn is a small AI development company. The team offers Artificial Intelligence and Web Development.
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UndisclosedUndisclosed10 - 49Indianapolis, IN
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Stonemill Consulting LLC is a small Application Testing company in Indianapolis, Indiana. Their services include Application Testing.
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UndisclosedUndisclosed10 - 49Toronto, Canada
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SQA Canada Inc. Is an Application Testing company. Founded in 2012, the company offers Application Testing and Robotics Process Automation.
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UndisclosedUndisclosed10 - 49Ahmedabad, India
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QA Ninjas Technologies Pvt. Ltd. Is an Alicante, Spain-based Application Testing company. Launched in 2018, the team offers Application Testing and Custom Software Development.
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UndisclosedUndisclosed10 - 49Austin, TX
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VirtuesTech is an Application Testing company launched in 2020. The small team specializes in Application Testing and Cybersecurity.
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UndisclosedUndisclosed10 - 49
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341 Global Consultants is a business intelligence company. The San Diego, California-based firm was founded in 2017. Their team offers BI & big data consulting & SI and IT managed services.
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$50,000+$100 - $149 / hr10 - 49Porto, Portugal
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QAValue is a software development company and Application Testing company. The agency is in Porto, Portugal. Their services include Custom Software Development and Application Testing.
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UndisclosedUndisclosed10 - 49Bellevue, WA
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Web design agency Adroit Business Solutions, Inc. Was launched in 2003. The firm provides Web Design and Mobile App Development.
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UndisclosedUndisclosed10 - 49Secunderabad, India
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DigitalA11Y, an Application Testing company, was established in 2014. The small team specializes in Application Testing and Web Development.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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Located in Ahmedabad, India, TabdeltaQA is an Application Testing company. They offer Application Testing and were founded in 2019.
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$5,000+Undisclosed10 - 49
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IT managed services company Owlneck Consulting Services is based in Hyderabad, India. Their services include IT managed services and IT staff augmentation.
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$1,000+$150 - $199 / hr10 - 49
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Founded in 2011, Aozora Hawaii is a small cloud consulting & SI company. Their services include cloud consulting & SI and Web Development.
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$1,000+$50 - $99 / hr50 - 249San Francisco, CA
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ACCELQ is a branding company. The team is headquartered in San Francisco, California, and their services include Branding and Custom Software Development.
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$10,000+$50 - $99 / hr10 - 49Toronto, Canada
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See all 1 projectsMillionDev Ltd. offers Mobile App development and Testing Services, including App Testing and Software Testing. Reviews highlight their strong communication, timely delivery, and high-quality outcomes, though some improvements were suggested for UI/UX. Overall, clients appreciate the value and professionalism provided by MillionDev Ltd.
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UndisclosedUndisclosed50 - 249Bengaluru, India
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Launched in 2001, Chimera Technologies Pvt Ltd is an AI Agents company. The firm focuses on AI Agents and IT managed services.
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$1,000+< $25 / hr10 - 49
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HDSOFT Technologies Private Limited is a social media marketing agency. Located in Goa, India, the company provides Social Media Marketing and Search Engine Optimization.
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$250,000+$25 - $49 / hr10 - 49Indore, India
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Synergy 4 Success Webtech Pvt. Ltd. Is a small web development company established in 2024. Their services include Web Development and UX/UI Design.
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UndisclosedUndisclosed250 - 999Menlo Park, CA
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Kumaran Systems is a Menlo Park, California-based Enterprise App Modernization company. Founded in 1991, the team focuses on Enterprise App Modernization and BI & big data consulting & SI.
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$1,000+< $25 / hr10 - 49Seattle, WA
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Flint Lab Inc, an Application Testing company, is in Seattle, Washington and Visakhapatnam, India. They focus on Application Testing and Computer Engineering.
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UndisclosedUndisclosed2 - 9Rosedale, IN
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Imagine Automation is a small Application Testing company headquartered in Rosedale, Indiana. The team focuses on Application Testing and Engineering.
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UndisclosedUndisclosed2 - 9Pendleton, IN
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Based in Pendleton, Indiana, ROBUSTQA LLC is a small Application Testing company. The team provides Application Testing.
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UndisclosedUndisclosed2 - 9Kraków, Poland
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DREDAR is an Application Testing company based in Kraków, Poland. They offer Application Testing and Corporate Training & Coaching and were founded in 2014.
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UndisclosedUndisclosed2 - 9Durham, NC
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Based in Durham, North Carolina, Web Performance Incorporated is an Application Testing company. Launched in 1999, the team focuses on Application Testing.
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UndisclosedUndisclosed2 - 9Davidsonville, MD
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Architectural Design company Arrowhead Services Inc. Was founded in 2001. The team focuses on Architectural Design and Application Testing and is based in Davidsonville, Maryland.
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UndisclosedUndisclosed2 - 9Round Rock, TX
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Located in Round Rock, Texas, Eqanim Tech LLC is a small Application Testing company. Their services include Application Testing.
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UndisclosedUndisclosed2 - 9Świętochłowice, Poland
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Founded in 2020, dlaTesterów.PL is an Application Testing company. Their services include Application Testing.
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UndisclosedUndisclosed250 - 999Bellevue, WA
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BrickRed Systems, a midsize Application Testing company, is in Bellevue, Washington and Hyderabad, India. Their services include Application Testing and Business Consulting.
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UndisclosedUndisclosed250 - 999Blue Bell, PA
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Business intelligence company KARYA Technologies was founded in 2007. The firm specializes in BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed250 - 999Pleasanton, CA
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CriticalRiver Inc. Is a cloud consulting & SI company founded in 2014. The team focuses on cloud consulting & SI and IT managed services and is in Pleasanton, California and Hyderabad, India.
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$5,000+$50 - $99 / hr10 - 49
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InveroPulse is a big data company. Established in 2023, their team provides BI & big data consulting & SI and IT managed services.
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$1,000+$25 - $49 / hr50 - 249Ahmedabad, India
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PixelQA, an Application Testing company, provide Application Testing and Application Management & Support. They were founded in 2004.
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UndisclosedUndisclosed1,000 - 9,999London, England
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Genisys Group is an user experience company. Based in London, England and Bengaluru, India, the company offers UX/UI Design and IT strategy consulting.
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UndisclosedUndisclosed50 - 249Sydney, Australia
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TestPro Pty Ltd is an Application Testing company located in Sydney, Australia. The team provides Application Testing and cloud consulting & SI.
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UndisclosedUndisclosed50 - 249Holbrook, MA
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Goavega Software Inc is a midsize Application Testing company founded in 2014. Their services include Application Testing and IT strategy consulting.
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UndisclosedUndisclosed50 - 249Springfield, IL
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Lead IT Corporation is a midsize social media marketing agency founded in 2005. Their services include Social Media Marketing and Content Marketing.
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$5,000+$25 - $49 / hr50 - 249
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Application Testing company QA Ninja provides Application Testing and Custom Software Development. They were founded in 2010.
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UndisclosedUndisclosed50 - 249San Francisco, CA
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TestRigor is an Application Testing company. Established in 2015, the company is based in San Francisco, California. Their team focuses on Application Testing and ERP consulting and SI.
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UndisclosedUndisclosed50 - 249San Francisco, CA
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Founded in 2012, Rainforest QA, a midsize Application Testing company, is in San Francisco, California. Their services include Application Testing and Artificial Intelligence.
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UndisclosedUndisclosed50 - 249Chico, CA
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Liatrio, a cloud consulting & SI company, was launched in 2023. The team focuses on cloud consulting & SI and Custom Software Development and is headquartered in Chico, California.
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Performance Testing Agency FAQs
A performance testing company evaluates how a website, mobile app, or enterprise system behaves under specific workloads. Engineers simulate real-world traffic, stress, and spike conditions to measure response times, throughput, CPU/memory usage, and failure points. The goal is to identify bottlenecks—such as slow database queries, network latency, or inefficient code—so developers can optimize before deployment and prevent costly downtime.
Performance testing companies evaluate software solutions under various workloads to assess their speed, performance, and responsiveness. These service providers deliver a variety of offerings, including:
- Load, stress, and spike testing
- Scalability and endurance (soak) testing
- Capacity planning and baseline benchmarking
- Infrastructure and cloud cost optimization
- Test script creation with tools like JMeter, Gatling, or LoadRunner
- Continuous performance testing integrated into CI/CD pipelines
- Detailed root-cause analysis and remediation guidance
Some firms also pair performance testing with broader QA services, security testing, or DevOps consulting for end-to-end quality coverage.
Budgets range widely based on key factors such as scope, software complexity, and technical requirements. According to data gathered by our team at Clutch, the average hourly rate for performance testing agencies is around $50 – $99. Here’s a rundown of average project costs:
- Small web app or API baseline test: $5,000 – $15,000
- Comprehensive load & stress program for a mid-sized platform: $20,000 – $50,000
- Ongoing performance engineering retainer for large enterprises: $10,000 – $40,000 per month
Costs rise with complex infrastructures, high concurrency requirements, or 24/7 monitoring. Offshore teams can lower hourly rates, but factor in communication and time-zone alignment.
Start by matching expertise to your tech stack—look for case studies involving similar frameworks, cloud providers, or traffic volumes. Next, review the following:
- Tool proficiency (open-source vs. enterprise suites)
- Ability to integrate with your CI/CD or APM tools
- Transparent reporting and actionable recommendations
- Client testimonials that reference measurable KPIs (e.g., “reduced p95 latency by 40%”)
Finally, run a paid pilot or proof-of-concept to validate collaboration style and results before committing to a long-term engagement. Browse through Clutch’s directories and resources to equip yourself with the essential knowledge to select the right partner for your project.
- “Guaranteed” speed scores without reviewing your codebase
- Reliance on a single testing tool for every project
- Vague deliverables—no mention of test scripts, monitoring dashboards, or root-cause analysis
- Limited communication or reluctance to share raw test data
- No post-test support for remediation or re-testing
- Which load-generation tools and monitoring platforms do you use?
- Can you share a recent case study with performance metrics?
- How do you size concurrent users and traffic patterns for our industry?
- Will you provide scripted tests and documentation we can reuse?
- How do you collaborate with developers to address identified issues?
- What is your pricing model for follow-up tests after fixes are applied?
Freelancers can manage one-off tests for smaller apps at a lower cost, but agencies offer cross-functional teams, diverse toolsets, and infrastructure at scale. If you need continuous performance engineering, automated pipelines, or round-the-clock support, a full-service agency is typically the safer choice.
Experienced performance testing agencies track KPIs such as decreased page load times, improved concurrency limits, reduced cloud spend after tuning, and fewer post-launch incidents. Many clients see direct revenue lifts from higher conversion rates and lower churn once performance bottlenecks are resolved.