Top Application Modernization Services
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$5,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
Services provided
See all 3 projectsRD DEV Solutions is a software development company specializing in frontend and backend solutions, with expertise in AngularJS, Node.js, and JavaScript. Clients commend their strong technical skills, communication, and ability to integrate seamlessly with existing teams. Approximately 100% of reviewers praised their flexibility and project management, while a few noted potential for improvement in backend support and development process management.
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Undisclosed$25 - $49 / hr50 - 249Pune, India
Services provided
See all 2 projectsInfoTechBrains CloudTech is a website development and maintenance company renowned for its robust technical solutions tailored to client needs. Based on reviews, they deliver 100% of projects on time and maintain proactive communication. While clients are highly satisfied, with 100% positive feedback, there is a suggestion for more structured performance analytics to enhance decision-making.
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Undisclosed$25 - $49 / hr10 - 49Gurugram, India
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See all 1 projectsMobi India is a technology company specializing in AI integration and workflow automation. Reviews highlight their strong technical understanding and business acumen, with 100% positive feedback regarding their project impact and delivery team efficiency. Clients appreciate their focus on addressing actual workflow challenges and providing good value for cost.
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$5,000+$25 - $49 / hr50 - 249Novi Sad, Serbia
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See all 2 projectsPanonIT is a software development company with a strong focus on healthcare and government sector solutions, offering services such as technology stack migration and custom software development. Their clients express high satisfaction with their strong technical knowledge, particularly in medical technologies, and effective project management. With 100% positive feedback, clients praise their talented developers and seamless communication despite geographical differences.
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$25,000+$50 - $99 / hr50 - 249Sofia, Bulgaria
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See all 5 projectsCleverPine is a comprehensive software development company specializing in full-cycle software solutions, including design, frontend and backend development, DevOps, and QA. Reviews indicate a 95% success rate in achieving sprint goals, highlighting their technical strength, agile implementation, and responsive communication. Clients consistently praise their commitment, expertise, and ability to deliver high-quality, scalable implementations, with 100% of reviews mentioning their impressive project management and dedication to client success.
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Undisclosed$50 - $99 / hr2 - 9Cape Town, South Africa
Services provided
See all 1 projectsApplication Frameworks, a company specializing in Enterprise Application Modernization, demonstrated competence and adaptability in upgrading and centralizing prepayment systems for a utilities firm. Positive feedback was prevalent, with 100% of reviewers highlighting their effective project management and ability to address client needs promptly. They effectively facilitated digital transformation through seamless integration with ERP systems and high-level customization.
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$25,000+$50 - $99 / hr10 - 49Zabrze, Poland
Services provided
See all 7 projectsIterative Engineering is a software development company offering custom solutions across various industries. The company consistently receives positive feedback for its agile project management, technical expertise, and ability to understand client needs, with 100% of reviewers highlighting their innovative approach and responsiveness. Clients appreciate their comprehensive communication and attention to detail, though some note minor delays due to their thoroughness.
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$10,000+$100 - $149 / hr2 - 9Guilden Morden, England
Services provided
See all 1 projectsCrowers Digital is a mobile app development company known for creating and maintaining iOS and Android applications. The company excels in project management, consistently meeting deadlines and demonstrating exceptional responsiveness, as highlighted by 100% of reviewers. Their clients, like The Showmen’s Guild of Great Britain, report high satisfaction with their tailored app solutions.
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$1,000+< $25 / hr10 - 49Surat, India
Services provided
See all 2 projectsTechno Brigade InfoTech is a mobile development company noted for its professionalism and timely project delivery. With 100% positive feedback, clients commend their effective communication and seamless workflow, evidenced by successful project completion and the impressive punctuality in delivering results.
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$25,000+$25 - $49 / hr250 - 999
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See all 2 projectsSpecific-Group is a software development company specializing in mobile and web application development, as well as system integrations. The company has received overwhelmingly positive feedback, with clients praising their technical expertise, reliability, and ability to deliver projects on time and within budget. Approximately 90% of reviewers highlighted their quick problem-solving skills and effective project management. Some feedback indicated room for improvement in verbal communication skills among non-native English speakers.
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$10,000+$50 - $99 / hr2 - 9Mysuru, India
Services provided
See all 3 projectsAgiliti Techpartners is a versatile technology solutions provider specializing in mobile app development, database creation, and technical consulting services. With a strong emphasis on professionalism and project management, the company has received positive feedback for meeting deadlines and effectively addressing client needs. Approximately 67% of reviewers highlighted the firm's expertise and commitment, while 33% noted the company's collaborative and communicative approach.
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$100,000+$25 - $49 / hr10 - 49
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See all 3 projectsCressoft Consultancy Limited is a software development company specializing in providing engineers, scrum masters, and architects for diverse projects, including mobile and web applications and UI/UX design. They are consistently praised for their flexibility, commitment, and innovative use of the latest technologies, with 100% positive feedback on their communication and project management skills.
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$5,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 1 projectsDewford Technologies is a software development company specializing in AI solutions. The reviews reflect a positive sentiment, highlighting their effective communication and ability to exceed project delivery expectations. Approximately 100% of reviewers commend their documentation quality and procedural focus, with minor feedback suggesting a more flexible project management approach.
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$5,000+$150 - $199 / hr2 - 9
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See all 1 projectsDurable Programming is a specialized app development company focused on troubleshooting and maintaining complex coding issues. With consistently positive feedback, 100% of reviewers commend their impressive code understanding and responsive communication. Clients appreciate their alignment with company values and cost-effective solutions, with no significant areas for improvement mentioned.
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$10,000+Undisclosed50 - 249Shinagawa City, Japan
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See all 1 projectsTakumi Technologies is a software modernization company specializing in Enterprise Application Modernization, including app modernization and legacy system updates. The feedback highlights a 100% satisfaction rate regarding their proactive communication and strong technical expertise in modernizing systems, with 100% of reviewers praising their responsiveness and forward-thinking approach in system design.
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$1,000+$25 - $49 / hr2 - 9Skopje, North Macedonia
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See all 3 projectsSuccess IT Ltd is a versatile software development company providing specialized services such as application development, software solutions, and system integrations. The company has garnered positive feedback for its expertise in complex projects and agile project management, with approximately 100% of reviews commending their professionalism and on-time delivery. Additionally, reviewers frequently noted their ability to understand client needs and deliver tailored solutions.
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$5,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 4 projectsAuriga IT is a versatile technology company specializing in software development and IT solutions. They have received predominantly positive feedback, with over 75% of reviews highlighting their high engineering quality and effective project management. Clients appreciate their ability to deliver complex projects on time and within budget, although some suggest improvements in critical thinking and marketing efforts. Overall, Auriga IT is noted for its flexibility, technical expertise, and value for money.
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$25,000+$25 - $49 / hr10 - 49
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See all 4 projectsDextechnology is a versatile software development company specializing in mobile application development for iOS and Android platforms, as well as backend infrastructure and API implementation. Reviewers consistently highlight their expertise in cross-platform development and professionalism, with approximately 85% of feedback noting their effective project management and problem-solving skills. Clients appreciate their responsiveness and ability to provide insightful recommendations during projects.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsSWING Technologies is a web development company specializing in creating websites and portals. Reviews indicate overwhelmingly positive feedback, with 100% of reviewers praising their responsiveness and creative solutions. The company is commended for delivering functional and reliable outcomes, meeting design specifications efficiently within tight timelines.
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$1,000+< $25 / hr10 - 49Gurugram, India
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See all 4 projectsNanotech Soft N App IT Solutions is a versatile IT solutions provider, specializing in developing APIs, web applications, and mobile apps. The company, praised for its professionalism and honesty, consistently meets project deadlines and client expectations. With a 100% satisfaction rate reflected in client testimonials, they effectively communicate and deliver tailored solutions, although minor language barriers were noted.
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$1,000+< $25 / hr10 - 49
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See all 11 projectsTatvamasi Labs, a company specializing in Enterprise Application Modernization and digital transformation, consistently receives positive feedback for their exceptional project management and tailored solutions. With 100% of reviewers highlighting their timely delivery and effective communication, they excel in bridging the gap between business processes and software needs, driving efficiency and operational improvements.
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$10,000+$25 - $49 / hr10 - 49
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See all 2 projectsVector is a technology consulting firm specializing in digital transformation, software development, and innovative solutions. Their reviews highlight a 100% satisfaction rate, emphasizing their strong cultural fit, effective communication, and timely delivery. Clients commend their skilled team for integrating seamlessly and delivering high-quality results in projects involving complex digital platforms.
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$1,000+$50 - $99 / hr2 - 9Corona, CA
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See all 1 projectsWellomyTech is a tech consulting firm specializing in designing and developing online and mobile learning platforms. They are praised for their excellent communication, flexibility, and accountability, with 100% of reviewers highlighting their professionalism and solution-oriented approach. WellomyTech consistently meets deadlines and provides valuable recommendations, making them a reliable partner for complex integrations and technology solutions.
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$25,000+$25 - $49 / hr10 - 49Rugby, England
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See all 4 projectsCoreScripts Technologies LTD is a versatile software development company specializing in custom applications, project management systems, and web-based solutions. They consistently receive positive feedback, with approximately 85%–90% of deliveries on time and notable praise for their communication, attention to detail, and technical expertise. Clients highlight their ability to adapt and accommodate project requirements, although minor improvements in documentation and testing are suggested.
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$5,000+$50 - $99 / hr10 - 49Istanbul, Türkiye
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See all 15 projectsVizio AI is a versatile software development company specializing in building MVPs, custom platforms, and data integration solutions, with a focus on AI integration, UI/UX design, and technical architecture. Feedback from their clients is predominantly positive, with roughly 80% expressing satisfaction with project management, communication, and the quality of deliverables. However, two reviews cited significant issues with performance and project management, highlighting areas for improvement in consistency and process structure.
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$10,000+$50 - $99 / hr2 - 9London, England
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See all 1 projectsEsseal LTD is a web development company known for building customized ticketing platforms, including admin dashboards, user-facing websites, and venue seat mapping tools. Based on reviews, 100% of clients highlighted their organizational skills and transparency, with no negative feedback reported. Clients praised their proactive communication and expertise, noting substantial time and cost savings.
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$5,000+$50 - $99 / hr50 - 249
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See all 1 projectsMobile Apps Ai is a mobile app development company known for delivering user-friendly and feature-rich applications. Reviews highlight a 100% positive feedback rate, emphasizing their ability to enhance user engagement, with measurable outcomes such as a 30% increase in engagement and a 20% boost in sales. Their project management and attention to detail are particularly praised by clients.
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$25,000+$200 - $300 / hr10 - 49Durham, NC
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See all 8 projectsSolar Inbound is a company specializing in Enterprise Application Modernization, notably excelling in transforming and modernizing operational processes via HubSpot implementations. Across reviews, 100% of clients highlight significant improvements in efficiency and scalability, with particular praise for their expertise and personalized support. The company is recognized for timely delivery and excellent value for cost.
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$1,000+$25 - $49 / hr50 - 249Buenos Aires, Argentina
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See all 2 projectsEspin Labs is a custom software development company that excels in creating and maintaining web portals and management systems. The feedback from their reviews is overwhelmingly positive, with 100% of reviewers noting their timely responsiveness and reliable service, even during off-hours. Clients, like the Ministry of Education of Argentina, appreciate their consistent ability to work within budget and time constraints.
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$1,000+< $25 / hr10 - 49Kochi, India
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See all 11 projectsBlue Horizon Infotech is a versatile software development company specializing in web development, software solutions, and design services. The company receives overwhelmingly positive feedback, with around 90% of reviewers praising their high-quality work and excellent project management. Reviewers frequently highlight the company's responsiveness and ability to handle complex projects, with 70% noting their innovative problem-solving and adaptability. Overall, Blue Horizon Infotech is recognized for its cost-effective and reliable solutions.
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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
39.3/40.019.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
39.1/40.020/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
35.9/40.016.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
35.4/40.015.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
37.2/40.017.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
34.2/40.016.4/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$25,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
34/40.015.2/20 Reviews8.8/10 Clients & Experience10/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
33.8/40.018.2/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
37.2/40.017.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
35.9/40.020/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
35% Enterprise App Modernization65% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
36.6/40.016.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
Undisclosed$150 - $199 / hr250 - 999London, England
Ability to deliver
36.4/40.017.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.3/40.018.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
32.2/40.015.8/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
35.8/40.016.4/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
36.8/40.018/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
Undisclosed$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
37.1/40.017.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Houston, TX
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.6/40.017.6/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
Undisclosed$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
36.8/40.020/20 Reviews7.2/10 Clients & Experience9.6/10 Market PresenceService focus
15% Enterprise App Modernization85% 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.