Top Application Modernization Services
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$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Services provided
See all 5 projectsTYMIQ is a software development company recognized for its expertise in IoT, system migrations, and custom software development. The company receives overwhelmingly positive feedback, with approximately 90% of reviewers praising its technical proficiency, timely project delivery, and effective communication. Notably, 60% of reviewers highlight TYMIQ’s flexibility and alignment with project goals, although some suggest room for enhancement in communication.
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$5,000+Undisclosed2 - 9Plovdiv, Bulgaria
Services provided
See all 2 projectsSIX MS is an Enterprise Application Modernization company specializing in ERP solutions and IT Modernization. They are praised for their cost-effective services, rapid implementation, and responsive project management. Approximately 80% of reviewers commend their pricing and speed, while 20% suggest improvements in customizing system functionalities to better meet client needs.
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$1,000+$25 - $49 / hr2 - 9Beograd, Serbia
Services provided
See all 6 projectsSally Engineering is a multifaceted software development company renowned for its expertise in system integration, web development, and front-end solutions. The firm consistently receives positive feedback, with 100% of reviewers highlighting their reliable project management, technical precision, and adaptability to client needs. Their ability to deliver effective solutions under tight deadlines and maintain clear communication is widely appreciated by clients.
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$5,000+$50 - $99 / hr10 - 49Leeds, England
Services provided
See all 12 projectsDecodifi Limited is a versatile app development company specializing in creating MVPs, e-commerce platforms, and custom web solutions using technologies like Bubble and Stripe integration. Across their reviews, approximately 85% of clients praise their responsiveness, technical expertise, and value alignment. Some reviews suggest areas for improvement in timeline management and quality control, accounting for about 15% of feedback.
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$1,000+< $25 / hr10 - 49Indore, India
Services provided
See all 3 projectsWangoes Technologies Pvt Ltd is a dynamic technology company specializing in mobile app development and ERP integration. They have received overwhelmingly positive feedback, with 100% of reviewers praising their timely delivery and high-quality work. Clients frequently commend their support and perseverance, contributing to significant sales growth and a 300% income growth rate per month.
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$10,000+$100 - $149 / hr10 - 49Moratuwa, Sri Lanka
Services provided
See all 1 projectsLinking Integrating is a web development and design company excelling in creating professional websites with integrated software solutions. Their commitment to understanding clients' core values and iterative feedback-based approach has resulted in positive feedback, with 100% of reviewers appreciating their communication and dedication to delivering tailored outcomes.
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$25,000+$150 - $199 / hr250 - 999Burnaby, Canada
Services provided
See all 4 projectsCelestial Systems Inc. is a technology solutions company that specializes in cloud transformation, web application development, and software development. Reviews indicate a strong emphasis on responsive project management, adaptability to budget constraints, and delivering value for cost, with 100% of reviewers highlighting effective communication. Some feedback suggests potential improvements in initial skill matching and quality control of UI mockups.
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$25,000+$50 - $99 / hr2 - 9Kigali, Rwanda
Services provided
See all 3 projectsOne World Coders is a software development company known for its expertise in both frontend and backend development, as well as web design. They have received overwhelmingly positive feedback, with clients praising their exceptional quality, clarity in communication, and impressive project delivery speed. Notably, 100% of reviewers commend their collaborative approach and ability to meet deadlines efficiently.
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$5,000+< $25 / hr10 - 49
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See all 2 projectsNode Bracket Media is an app development company recognized for its exceptional technical work and efficient project management. With 100% positive feedback, reviewers commend their high-speed delivery, consistent reliability, and excellent communication. Clients highlight the company's ability to meet every milestone and remain a professional and loyal partner.
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$1,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsEonovate is a web development company specializing in end-to-end solutions, including backend design, UI development, and creative design work. The feedback for Eonovate is overwhelmingly positive, with 100% satisfaction from clients who commend their timely delivery, responsiveness, and the significant improvement to website performance, such as an 18% reduction in load times.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
Services provided
See all 10 projectsGoCinico is a web development and digital solutions company, known for delivering high-quality website redesigns, custom CRM systems, and logo designs. Their reviews highlight a strong work ethic, timely project delivery, and excellent communication, with 100% of respondents commending their professional approach. Clients praise their team for aligning company values and producing impressive results, making them a reliable partner for various digital needs.
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$1,000+Undisclosed50 - 249Beograd, Serbia
Services provided
See all 7 projectsMainstream is a professional enterprise application modernization company, specializing in services such as Kubernetes infrastructure review. Reviews indicate a strong emphasis on timely project management and responsiveness to client requirements, with a 100% positive feedback rate regarding their professionalism and ability to meet client needs.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsThe Dev Alley is a web development company specializing in WordPress website design, on-page SEO, and performance optimization. Reviews highlight their proficiency in creating fast-loading websites with appealing design and effective project management. Clients report satisfaction with their services, noting the team’s understanding and expertise, with 100% positive feedback on their communication and delivery timeliness.
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$50,000+$300+ / hr2 - 9Evanston, IL
Services provided
See all 1 projectsJAM-IT BPM Consultants is a specialized consultancy firm offering advanced business process management solutions, particularly in fraud detection for the healthcare sector. Feedback from reviews indicates that they deliver high-quality work on time, with 100% of reviewers praising their technical expertise. However, there is minor room for improvement in professional responsibility despite their overall positive performance.
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$5,000+$100 - $149 / hr2 - 9
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See all 5 projectsSEOParity is a versatile technology consulting company specializing in technical audits, platform migrations, and website development. Their extensive expertise across various domains, such as SEO, frontend engineering, and CMS architecture, is consistently praised in 100% of the reviews. Clients commend SEOParity's timely delivery, strong project management, and effective communication, with 80% of reviewers highlighting their impressive technical skills and consultation capabilities.
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$1,000+$25 - $49 / hr50 - 249Chicago, IL
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See all 1 projectsCPLUSOFT is a technology company specializing in AI automation solutions. According to client feedback, they effectively automated tasks and improved communication and activity visibility, with a 100% positive response rate on their project management and clear communication. However, a more detailed handover process was suggested for improvement.
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UndisclosedUndisclosed2 - 9
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See all 1 projectsStoneIT Cloud is a cloud consulting company known for its technical assessment and infrastructure optimization services. Their reviews highlight a 100% positive feedback rate, with clients praising their deep cloud expertise, objective approach, and ability to deliver timely and actionable recommendations. StoneIT Cloud is noted for clear communication and adaptability to client needs.
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$10,000+$25 - $49 / hr10 - 49
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See all 10 projectsF22 Labs is a versatile development company specializing in mobile app and web development, backend system integration, and digital solutions. Across numerous reviews, F22 Labs is praised for its professionalism, innovative problem-solving, and resourcefulness. Approximately 90% of clients highlight their ability to deliver complex projects within tight deadlines and appreciate their willingness to go beyond contractual obligations, with many noting their out-of-the-box approach and adaptability to client needs.
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$5,000+$200 - $300 / hr2 - 9
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See all 3 projectsReyem Technologies Inc is a multifaceted technology consulting firm specializing in AI integration, digital transformation, and custom web solutions. The company is highly regarded for its exceptional project management skills and innovative problem-solving, with 100% of reviewers praising its effectiveness and depth of knowledge. Clients consistently commend Reyem Technologies Inc for delivering projects on time and exceeding expectations.
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$10,000+$25 - $49 / hr50 - 249Surat, India
Services provided
See all 2 projectsMegaMinds Technologies Pvt. Ltd. is a web solutions company that specializes in enhancing digital infrastructure and developing e-commerce applications. Reviews indicate a 100% satisfaction rate, highlighting their innovative approach, technical expertise, and client-centric ethos. Clients commend their project management, timely delivery, and ability to exceed expectations without significant areas for improvement noted.
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$10,000+$150 - $199 / hr2 - 9Plano, TX
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See all 1 projectsStackfound is a technology consultancy specializing in application development and cloud solutions, with an emphasis on AWS and Azure integrations. They have received exclusively positive feedback, with 100% of reviewers praising their collaborative approach, adherence to timelines, and ability to deliver comprehensive solutions. Their work in identity management, cost optimization, and user interface enhancements is particularly highlighted for its excellence.
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$5,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 10 projectsMagnisys is a technology solutions company specializing in developing mobile and VR applications to enhance operational efficiency and customer engagement. Across multiple projects, clients report 100% satisfaction with their ability to deliver on-time, foresee issues, and provide innovative solutions. Approximately 85% of reviewers commend their seamless integration of technology with customer needs.
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$50,000+$50 - $99 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 7 projectsIntellivon is a company that specializes in Enterprise Application Modernization, focusing on app and AI development. Reviews highlight a 100% positive experience, emphasizing their expertise in AI integrations, user-friendly solutions, proactive project management, and strong alignment with client values. Clients praise their ability to simplify complex processes, maintain privacy, and deliver projects on time.
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$100,000+$50 - $99 / hr50 - 249Ciudad de México, Mexico
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See all 3 projectsXID - Digital Services is an IT modernization company specializing in enterprise application modernization, offering services such as app modernization and software platform update services. With 100% positive feedback, reviewers note their flexibility and ability to meet demands and priorities. Their work notably enhances user satisfaction and app uptime.
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$10,000+$50 - $99 / hr50 - 249
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See all 6 projectsKovix is a software development company that specializes in agile project management and the creation of bespoke software solutions, including web and mobile applications. The company has received overwhelmingly positive feedback, with 100% of reviewers praising their integration with internal teams and commitment to delivering high-quality, innovative solutions. Clients frequently highlight Kovix's proactive problem-solving and their impressive ability to understand and meet project requirements efficiently.
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$10,000+$25 - $49 / hr10 - 49Madrid, Spain
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See all 3 projectsRedradix is a web development company specializing in frontend services with a focus on usability and presentation. Overall, the feedback is highly positive, with clients praising their project management and timely delivery. Approximately 100% of reviewers highlight their expertise in frontend development and effective communication, while some note a preference for in-office collaboration.
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$5,000+$50 - $99 / hr10 - 49Wrocław, Poland
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See all 2 projectsCCA Europe.pl is a software development company specializing in integrated banking solutions, particularly with FIS PROFILE systems. Their services are characterized by flexibility, technical expertise, and seamless collaboration, earning positive feedback in 100% of the reviews. Clients highlight the company's effective communication, cultural adaptability, and robust project management skills, with 50% underscoring their proactivity in technical problem-solving and change management.
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$10,000+$25 - $49 / hr10 - 49Lucknow, India
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See all 2 projectsTechno Companion is a versatile technology company specializing in application development, technology consulting, and infrastructure improvement. Reviewers consistently praise their ownership and reliability, noting effective communication and a rapid turnaround time for issue resolution. With 100% positive feedback, clients commend their flexibility, seamless project execution, and commitment to quality, enhancing user engagement and satisfaction.
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$10,000+$25 - $49 / hr50 - 249
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See all 1 projectsMGS Software is a software, web, and mobile development company that provides comprehensive 360-degree services. The reviews highlight MGS Software's effective project management, timely delivery, and strong communication, with 100% positive feedback emphasizing their commitment to treating projects as "family projects" and ensuring client satisfaction.
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$5,000+$25 - $49 / hr10 - 49Pune, India
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See all 4 projectsVibeosys Software Pvt Ltd is a software development company specializing in web and app development. The company receives mixed reviews, with one client praising their integrity and project management despite cultural challenges, while another highlights issues with app functionality and coding quality. Approximately 50% of the feedback emphasizes positive aspects like trust and communication, while the other 50% points out technical shortcomings.
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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
35.8/40.020/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
37.8/40.020/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$100,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
34.7/40.019/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
32.1/40.016.6/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
34/40.018.8/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.6/40.015.8/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.3/40.017.8/20 Reviews9.8/10 Clients & Experience3.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
30.8/40.016.4/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
30.7/40.016.2/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
30.5/40.015.2/20 Reviews8.8/10 Clients & Experience6.6/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
36.4/40.020/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
33.3/40.019.6/20 Reviews10/10 Clients & Experience3.7/10 Market PresenceService focus
35% Enterprise App Modernization65% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.1/40.015.8/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$10,000+$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
35.4/40.019.6/20 Reviews9.1/10 Clients & Experience6.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
35.6/40.020/20 Reviews10/10 Clients & Experience5.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
33.5/40.017.2/20 Reviews9.8/10 Clients & Experience6.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
31.8/40.017.6/20 Reviews10/10 Clients & Experience4.2/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$1,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
34.8/40.017/20 Reviews9.7/10 Clients & Experience8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$150 - $199 / hr50 - 249Claymont, DE
Ability to deliver
33.3/40.016.6/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.020/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.3/40.016.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34/40.017.8/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.6/40.016.6/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
32.6/40.018.6/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
31.5/40.017.2/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
Ability to deliver
33.4/40.016.6/20 Reviews9.9/10 Clients & Experience7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.4/40.016.4/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
28.2/40.016.2/20 Reviews7.8/10 Clients & Experience4.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
34.2/40.018.8/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
10% Enterprise App Modernization90% 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.