Top Application Modernization Services
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$50,000+$25 - $49 / hr50 - 249Córdoba, Argentina
Services provided
See all 17 projectsSouthern Code is a versatile software development company offering services such as e-commerce development, mobile app development, and staff augmentation. Reviewers consistently praise Southern Code for their professionalism, effective communication, and ability to deliver high-quality solutions on time. Approximately 100% of reviews note their commitment to customer satisfaction and adaptability to project needs.
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$10,000+$25 - $49 / hr50 - 249San Antonio, TX
Services provided
See all 10 projectsTowa - Nearshore Software Excellence is a software development company specializing in custom software solutions, project management, and support services across various industries. Overall, the company has received positive feedback, with over 95% of reviewers highlighting their professionalism, timely delivery, and alignment with client values. Additionally, many clients appreciate their commitment to quality, cultural fit, and flexibility in meeting project requirements.
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$50,000+$50 - $99 / hr1,000 - 9,999Łódź, Poland
Services provided
See all 10 projectsInfopulse is a comprehensive IT services company specializing in custom software development, cloud infrastructure solutions, and SAP S/4HANA projects. Reviews indicate a 100% satisfaction rate with their technical expertise, project management, and responsiveness. Notably, 70% of reviewers highlight their ability to meet timelines and provide valuable recommendations, demonstrating their commitment to delivering high-quality, reliable solutions.
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$100,000+$200 - $300 / hr10 - 49
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See all 3 projectsMEF.DEV is a software development company specializing in billing systems and real-time charging solutions, primarily for telecommunications. Their reviews reflect a 100% positive sentiment, emphasizing strong project management, swift responsiveness, and an openness to new challenges, with no areas for improvement noted. Reviewers praised their flexibility and ability to deliver successful migrations without revenue loss.
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$100,000+$150 - $199 / hr250 - 999Los Angeles, CA
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See all 1 projectsTheoremOne is a strategic development company specializing in building MVPs and offering comprehensive design services. Reviews indicate a high level of client satisfaction, with customers praising their design expertise, effective project management, and ability to meet timelines. The overwhelmingly positive feedback highlights their thought leadership and user-first approach, with 100% of reviewers commending their delivery and communication.
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$50,000+$50 - $99 / hr10 - 49Wrocław, Poland
Services provided
See all 19 projectsAccesto is a software modernization company specializing in enterprise application modernization, including legacy app modernization and digital transformation. With 100% positive feedback, clients commend their excellent management, transparent communication, and ability to handle complex projects effectively. Accesto successfully transformed legacy systems into scalable, user-friendly platforms, meeting project timelines and delivering valuable inputs throughout.
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$100,000+$50 - $99 / hr250 - 999Charlotte, NC
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See all 5 projectsRapidops, Inc. is a versatile software development company specializing in web and application development. The overall feedback from their reviews is predominantly positive, with approximately 95% of reviewers highlighting their strong communication, commitment to quality, and adaptability to client needs. A significant 80% of clients appreciate Rapidops' ability to handle complex projects efficiently, while 60% commend their innovative problem-solving and technical expertise.
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$50,000+$100 - $149 / hr10,000+Austin, TX
Services provided
See all 3 projectsSoftServe is a software development company specializing in custom software solutions, healthcare technology applications, and innovative consulting. Reviews highlight its strong technical expertise, particularly in using the Microsoft tech stack and mobile technology. SoftServe receives overwhelmingly positive feedback, with 100% of reviewers praising its project management skills, communication abilities, and innovative approach. Clients specifically appreciate the company's human-centric design philosophy and structured training and development programs for employees.
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$10,000+$100 - $149 / hr10 - 49Atlanta, GA
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See all 14 projects7Factor Software is a versatile software development company that specializes in providing custom solutions, DevOps, and IT support across various industries. The company receives overwhelmingly positive feedback, with clients praising their technical expertise, professionalism, and effective project management. Approximately 90% of reviewers highlight their dedication to transparency and their ability to communicate technical concepts clearly. A recurring theme is their flexibility and commitment to meeting client needs, making them a trusted partner for long-term collaborations.
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$25,000+$100 - $149 / hr10 - 49Irvine, CA
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See all 10 projectsBaytech Consulting is a software development company specializing in creating tailored digital solutions, including CRM systems, web applications, and workflow automation. Across reviews, they are consistently praised for their professionalism, efficient project management, and exceptional communication skills. Approximately 100% of reviewers highlight their ability to deliver high-quality, reliable solutions on time and within budget, with many noting their integrity and personalized service.
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$50,000+$150 - $199 / hr10 - 49Orlando, FL
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See all 7 projectsConcepta is a versatile software development company specializing in mobile app and web platform solutions. Feedback from clients is overwhelmingly positive, with 100% highlighting their professionalism and dedication to understanding client needs. Common themes across reviews include timeliness, effective project management, and strong customer service, demonstrating their commitment to delivering tailored and high-quality solutions.
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$10,000+$25 - $49 / hr50 - 249Córdoba, Argentina
Services provided
See all 18 projectsClarika is a versatile software development company specializing in web and mobile app development, digital platforms, and team augmentation services. Reviews indicate an overwhelmingly positive sentiment, with clients praising their professionalism, agile methodologies, and commitment to client success. Approximately 90% of reviewers highlight their strong communication and dedication, with no significant areas of improvement noted. Clarika's expertise and customer-centric approach make them a preferred partner for diverse technological needs.
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$50,000+$50 - $99 / hr50 - 249Vilnius, Lithuania
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See all 3 projectsMetasite is a technology company specializing in developing and maintaining digital platforms and IT systems, particularly within the financial sector. They are noted for their expertise, professionalism, and strong project management skills, consistently delivering projects on time and exceeding client expectations. Approximately 100% of the reviews highlighted their effective communication and adaptability to project needs, with no significant areas for improvement mentioned.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 13 projectsFINGO Software House is a technology company specializing in Enterprise Application Modernization and digital transformation. Their clients consistently praise them for their dedication, reliability, and responsiveness in projects involving software and systems modernization. Notably, 100% of reviewers commend their seamless integration with existing teams and processes, highlighting their effective communication and excellent culture fit.
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$50,000+Undisclosed50 - 249Zürich, Switzerland
Services provided
See all 3 projectsModeso is a software development company specializing in creating customized IT solutions and applications, as evidenced by their work for clients in sectors such as healthcare and SaaS. The reviews highlight their technical expertise and responsive customer service, with approximately 90% of the feedback being positive. Clients appreciate their solution-oriented approach, though some suggest improvements in managing outsourced resources and processes.
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$25,000+$50 - $99 / hr250 - 999San Francisco, CA
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See all 30 projectsHelpware Tech is a technology company specializing in the development of advanced AI and machine learning solutions, particularly for the healthcare sector. The company has received highly positive feedback, with clients praising its effective project management, timely delivery, and adaptability, contributing to 60% time savings in project execution. Helpware Tech's integration of natural language processing and intelligent systems into its projects is consistently highlighted as a significant strength by approximately 80% of reviewers.
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$5,000+$25 - $49 / hr10 - 49Minneapolis, MN
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See all 16 projectsRevamp Consulting is a comprehensive IT consulting firm specializing in software development, digital transformation strategies, and e-commerce platform implementations. Across various reviews, 100% of clients praised their professional integrity, commitment to deadlines, and excellent communication, with 75% highlighting their ability to tailor solutions effectively. While some clients suggested they expand their market presence, overall satisfaction with their services remains high.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 22 projectsKanhaSoft is a software development company specializing in custom CRM solutions, web development, and UI/UX design. The company receives high praise for its technical expertise and responsiveness across the majority of its feedback, with approximately 90% of reviewers highlighting their communication and project management skills. Clients consistently commend KanhaSoft for delivering timely, well-executed solutions that align with client needs and expectations, ensuring a smooth and effective collaboration process.
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$10,000+$25 - $49 / hr50 - 249Khmel'nyts'kyi, Ukraine
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See all 12 projectsIT Hoot is an enterprise application modernization company that specializes in legacy system modernization and software platform update services. Reviews highlight their technical expertise and responsiveness, with 100% of clients noting improved system performance and increased order processing efficiency. However, simultaneous product launches suggested a need for staggered rollouts.
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$25,000+$150 - $199 / hr50 - 249Indianapolis, IN
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See all 3 projectsDeveloperTown is a technology development firm specializing in user experience design, prototype reengineering, and community-focused tech solutions. Across their reviews, clients praise their innovative approach, with 100% of reviewers highlighting DeveloperTown's exceptional design quality and community engagement. Their commitment to transparency and partnership has consistently impressed clients, fostering long-term relationships and loyalty.
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$10,000+$25 - $49 / hr50 - 249Cape Town, South Africa
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See all 12 projectsHaefele Software is a versatile software development company offering diverse services, including auction platform development, system architecture reviews, web and app product handovers, and mobile app creation. With over 90% of reviews highlighting their effective communication, project management, and technical expertise, clients consistently praise their proactive approach and ability to adapt to unique project needs, despite occasional fee structure confusion.
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$25,000+$50 - $99 / hr10 - 49Niš, Serbia
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See all 14 projectsBoopro Technology is a versatile software development company specializing in web and mobile app development, recognized for its high-quality project management and customer-centric approach. The overall feedback from clients is overwhelmingly positive, with 100% of reviewers highlighting their ability to deliver projects on time and their proactive communication. Clients consistently praise the company's flexibility, technical expertise, and alignment with client values, indicating a strong culture fit and commitment to client success.
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$50,000+$25 - $49 / hr50 - 249Montevideo, Uruguay
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See all 21 projectsSwitch Software is a software development company that excels in providing custom solutions, including application development, UX design, and system integration. Their clients commend their commitment to quality, reliability, and customer-centric approach. Approximately 90% of reviewers highlight their proficiency and timeliness, while 70% emphasize their outstanding project management and communication. Their ability to seamlessly integrate into client teams and deliver innovative, cost-effective solutions is frequently praised.
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$5,000+$25 - $49 / hr50 - 249Jodhpur, India
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See all 1 projectsLp Cloud Lab Pvt. Ltd. specializes in Enterprise Application Modernization, delivering cloud-native solutions to replace legacy systems. The company has received overwhelmingly positive feedback for their commitment to client success and prompt response to change requests, with 100% of reviewers highlighting their effective communication and world-class service. They are noted for their ability to future-proof systems, ensuring flexibility and customization.
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$250,000+$200 - $300 / hr50 - 249Houston, TX
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See all 2 projectsChaiOne is a mobile app development company that specializes in providing tailored solutions for clients in various industries. They have received positive feedback for their expertise, with a notable 100% satisfaction rate from reviewers who praised their smooth integration and innovative ideas. While clients appreciate their ability to meet deadlines and enhance projects, some suggest improvements in communication and resource allocation.
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$25,000+Undisclosed250 - 999Reston, VA
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See all 19 projectsModus Create is a versatile technology consulting firm specializing in cloud migration, user experience research, and web infrastructure integration. Approximately 90% of reviews highlight their expertise and impactful solutions, with clients praising their project management and innovative approaches. They are commended for their ability to understand business needs and deliver high-quality, cost-effective solutions, though a few suggest better initial project scope clarity. Overall, Modus Create is recognized for effectively enhancing business processes and providing exceptional customer service.
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 21 projectsAlbiorix Technology Pvt. Ltd. excels in Enterprise Application Modernization, offering top-tier digital transformation services. They receive overwhelmingly positive feedback, with 100% of reviewers praising their professionalism, communication skills, and ability to deliver exceptional, timely solutions. Clients highlight their commitment to understanding needs and producing effective solutions, making them highly recommended for modernization projects.
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$25,000+$150 - $199 / hr10 - 49Denver, CO
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See all 4 projectsTonic is a versatile technology consulting company specializing in app development, UX strategy, and front-end development. With over 90% positive feedback from clients, Tonic is praised for its technical expertise, effective project management, and ability to deliver complex solutions efficiently. Clients describe the team as highly skilled, flexible, and communicative, consistently staying within budget and meeting project deadlines.
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$1,000+$25 - $49 / hr50 - 249Princeton, NJ
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See all 1 projectsVeraqor, Inc. is a technology consulting firm specializing in cloud-based infrastructure solutions. The company is praised for its high responsiveness and effective collaboration, with 100% of reviewers noting their exceptional communication. Feedback is overwhelmingly positive, with clients appreciating their thorough vendor experience and timely delivery, contributing to successful project outcomes.
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$10,000+$25 - $49 / hr10 - 49Noida, India
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See all 13 projectsTerasol Technologies is a versatile IT service provider specializing in custom software development, website and mobile app creation, and digital solutions across various industries. The company has received overwhelmingly positive feedback, with clients praising their professionalism, timeliness, and effective communication. Approximately 90% of the reviews highlight their ability to exceed expectations and deliver high-quality, innovative solutions, while minor areas for improvement include offering more payment options and expanding support services.
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List of the Top 15 Legacy Modernization Services
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$25,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
35/40.019.6/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
35.3/40.018.8/20 Reviews10/10 Clients & Experience6.5/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
31.9/40.016.6/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.6/40.017.4/20 Reviews9.8/10 Clients & Experience4.4/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.3/40.015.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
38.1/40.020/20 Reviews10/10 Clients & Experience8.1/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
36.6/40.020/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.2/40.015.8/20 Reviews10/10 Clients & Experience4.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$25,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
33.9/40.018.2/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
29.8/40.015.2/20 Reviews8.8/10 Clients & Experience5.9/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
35.7/40.020/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
31.1/40.016/20 Reviews10/10 Clients & Experience5.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
33/40.017.2/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
37/40.019.8/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
32.9/40.016.6/20 Reviews10/10 Clients & Experience6.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.7/40.016.8/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
34.3/40.019/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
33.7/40.016.6/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
32.2/40.017.2/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr10 - 49Farmington, MI
Ability to deliver
31.5/40.016.6/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34.1/40.018.4/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$150 - $199 / hr50 - 249
Ability to deliver
32/40.016.6/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.8/40.016.4/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$1,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
32.6/40.017.2/20 Reviews9.4/10 Clients & Experience6/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.5/40.016.6/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
31.5/40.016.8/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$250,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
33.3/40.017.6/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
31.5/40.016.2/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
31.4/40.016.4/20 Reviews9.8/10 Clients & Experience5.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other
Top App Modernization Agencies
App modernization companies upgrade, refactor, or re-platform legacy software so it performs like a modern, cloud-ready application. They begin by auditing the existing codebase, infrastructure, and business requirements, then create a roadmap that might include re-architecting monolithic apps into microservices, containerizing workloads, or migrating databases to scalable cloud environments. Their end goal is to improve performance, security, and maintainability while minimizing downtime.
Most firms deliver a mix of strategic and technical services, such as:
- Legacy code assessment and technical debt analysis
- Re-platforming (e.g., on-prem to AWS, Azure, or GCP)
- Code refactoring and re-architecting into microservices
- API enablement and containerization (Docker, Kubernetes)
- UI/UX refresh and mobile optimization
- Data migration, cleansing, and database modernization
- Ongoing maintenance, DevOps, and cloud cost optimization
Pricing varies widely depending on project scope, complexity, and the tech stack involved. Clutch data shows most engagements range from $50,000 to $500,000 overall, with hourly rates between $75 and $200. Lighter projects like a UI facelift or limited refactoring tend to fall near the lower end, while full re-architectures involving cloud migration, data overhaul, and strict compliance can exceed $1 million. Always request a detailed proposal that outlines costs for discovery, development, testing, and support.
When choosing the best right app modernization for your business, consider these:
- Review expertise: Look for case studies that mirror your tech stack (Java, .NET, PHP) and industry compliance needs.
- Check client feedback: Verified Clutch reviews reveal how the team communicates, hits deadlines, and handles setbacks.
- Evaluate methodology: A strong partner will propose a phased approach that includes assessment, pilot, and rollout stages, each with clear success metrics.
- Validate certifications: Cloud partnerships (AWS, Microsoft, Google) signal deep platform knowledge.
- Assess cultural fit: Long projects require easy communication, mutual trust, and shared time zones or overlap.
These are some of the red flags that you should watch for when hiring an app modernization company:
- Guaranteed timelines before an audit: Accurate estimates require a code and infrastructure review.
- Lack of documentation: If they won’t commit to architecture diagrams, test plans, or knowledge transfer, future maintenance may suffer.
- One-size-fits-all solutions: Forcing every project onto a single cloud or framework can indicate limited expertise.
- Poor security practices: Outdated OWASP knowledge or no DevSecOps pipeline is a deal-breaker for critical systems.
- Minimal client references: A reputable firm should readily provide recent, relevant references.
Here are some questions you can ask app modernization companies before hiring them:
- Which modernization strategies (rehost, refactor, re-architect) do you recommend for our stack, and why?
- Can you share success metrics from similar projects—e.g., performance gains or cost reductions?
- What is your approach to minimizing downtime during migration?
- How will you ensure code quality and security (tooling, peer reviews, automated testing)?
- What support and knowledge-transfer do you provide after launch?
- How do you handle scope changes and unforeseen legacy issues?
Partnering with specialists accelerates time-to-value. Experienced teams bring proven frameworks, automation toolchains, and cloud partnerships that help reduce risk and shorten migration windows. Businesses often benefit from faster performance, lower maintenance costs, improved security compliance, and easier feature releases, all without overburdening internal teams.
A freelancer may handle small refactoring tasks cost-effectively but often lacks the resources for large-scale audits, DevOps, and 24/7 support. Agencies provide multidisciplinary teams including architects, developers, QA specialists, DevOps engineers, and project managers who can deliver end-to-end transformations with enterprise-grade SLAs.