Top Application Modernization Services
-
$10,000+$50 - $99 / hr50 - 249München, Germany
Services provided
See all 5 projectsAterise is a software development and IT consulting company specializing in financial solutions and digital products. Across the reviews, clients praised Aterise for their on-time delivery and strong communication skills. The company is commended for their quality work, cost-effectiveness, and adaptability to project needs. Notably, 100% of reviewers were impressed with their professionalism and execution, with no areas marked for improvement.
-
$25,000+$25 - $49 / hr10 - 49Rugby, England
Services provided
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.
-
$1,000+$25 - $49 / hr2 - 9Kyiv, Ukraine
Services provided
See all 1 projectsBlackSeed is a web development company specializing in comprehensive transport brokerage platforms, including web and mobile solutions. Reviews indicate a 100% satisfaction rate, highlighting their responsiveness and effective project management. Clients appreciate their detailed approach and round-the-clock support, with 80% mentioning impressive communication and responsiveness. BlackSeed continuously enhances its processes to maintain high-quality standards.
-
$25,000+$50 - $99 / hr50 - 249Sofia, Bulgaria
Services provided
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.
-
$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.
-
$1,000+$25 - $49 / hr2 - 9San Pedro Garza García, Mexico
Services provided
See all 3 projectsUX Labs specializes in Enterprise App Modernization, providing innovative solutions and digital transformation services tailored to client needs. The reviews highlight their exceptional software modernization capabilities, operational efficiency improvements, and timely project delivery. Clients appreciate the intuitive user interfaces and exemplary professionalism, resulting in increased productivity and customer satisfaction.
-
$10,000+$50 - $99 / hr2 - 9Burbank, CA
Services provided
See all 1 projectsWorklab.io, Inc. is a comprehensive software development firm specializing in mobile and desktop applications, as well as backend solutions, utilizing technologies such as React Native and Firebase. The company is praised for its professionalism, adherence to deadlines, and ability to meet client specifications, with 100% of reviewers highlighting their impressive project management and technological expertise.
-
$25,000+$25 - $49 / hr250 - 999
Services provided
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.
-
$10,000+$50 - $99 / hr10 - 49
Services provided
See all 5 projectsAllmatics is a versatile software development company known for offering comprehensive software solutions, including web development, database design, and system integration. Across their reviews, 100% of clients commend their reliability and project management, highlighting their timely delivery and strong communication. Approximately 80% of reviews emphasize their honest billing practices and adaptability to client needs.
-
$100,000+$25 - $49 / hr10 - 49
Services provided
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.
-
$10,000+Undisclosed50 - 249Shinagawa City, Japan
Services provided
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.
-
$1,000+< $25 / hr10 - 49Kochi, India
Services provided
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.
-
$1,000+Undisclosed10 - 49Hong Kong Island, Hong Kong
Services provided
See all 5 projectsKorah Limited is a technology company specializing in AI-driven chatbot solutions and customization for diverse industries, including web design, cybersecurity, government services, and real estate. The company is praised for its responsive and collaborative approach, with 100% of reviewers highlighting their reliable project management and willingness to accommodate client needs. Reviewers consistently commend Korah Limited's technical expertise and agility, with no significant areas for improvement mentioned.
-
$1,000+$25 - $49 / hr2 - 9Kharkiv, Ukraine
Services provided
See all 1 projectsBravodev is a software development company specializing in creating, maintaining, and expanding SaaS solutions, particularly for the insurance sector. Client feedback is overwhelmingly positive, highlighting their high technical expertise, excellent communication skills, and dedication, with 100% of reviewers emphasizing their ambition. All reviews are positive, though one suggests improving day-to-day bug handling.
-
$1,000+$100 - $149 / hr10 - 49Austin, TX
Services provided
See all 4 projectsProsigliere, Inc. is a recruitment and technology consulting firm specializing in end-to-end talent sourcing and IT system assessments. With a remarkable 100% positive feedback from clients, Prosigliere is praised for identifying high-quality talent and enhancing technical capabilities while maintaining cultural alignment and efficient project management. Their ability to integrate seamlessly with client teams and deliver tailored solutions is frequently highlighted by reviewers.
-
$25,000+$25 - $49 / hr2 - 9Vickramasingapuram, India
Services provided
See all 2 projectsZephony is a development company known for building MVPs, particularly for AI-powered solutions. The overall feedback is positive, with clients praising their commitment despite unforeseen challenges. However, 100% of reviewers suggest assessing complexities early to prevent delays. The company's culture fit and cost-effectiveness are consistently highlighted as strengths.
-
$1,000+$25 - $49 / hr50 - 249Indore, India
Services provided
See all 1 projectsAPPSTEAN INFOTECH PRIVATE LIMITED is an ERP software service provider with over 17 years of experience, specializing in customized business solutions for various industries. Their services receive positive feedback for seamless implementation, proactive support, and strong management, as highlighted by 100% of reviewers. However, it is suggested they adopt cloud-based technology for enhanced reach and product strength.
-
UndisclosedUndisclosed10 - 49
Services provided
See all 1 projectsNenu Tech Limited is a software development company specializing in creating client management solutions and providing SEO services. The reviews indicate a high level of satisfaction, with 100% positive feedback highlighting their timely delivery, attentiveness, and ethical conduct. Clients appreciated their secure solutions and effective communication, emphasizing the company's reliability in a market filled with less trustworthy providers.
-
$5,000+$25 - $49 / hr2 - 9
Services provided
See all 1 projectsLifeisgoodlabs is an offshore development company specializing in open source technologies, leveraging platforms like WordPress, Django, Python, and Amazon AWS. With positive feedback, they constitute 80% of the client's open source team, noted for flexibility and strong QA processes. Suggestions for improvement include expanding expertise in Microsoft technologies.
-
$50,000+$50 - $99 / hr10 - 49Budapest, Hungary
Services provided
See all 1 projectsKonstruktor Online is a versatile IT development company known for delivering comprehensive solutions involving both hardware and software integration. They have received overwhelmingly positive feedback for their professionalism and capability, with 100% of reviewers praising their holistic approach and technical expertise. Despite being a young company, they are recognized as a one-stop-shop that efficiently manages complex projects.
-
$5,000+$25 - $49 / hr10 - 49Chorzów, Poland
Services provided
See all 3 projectsEvertop is a versatile software development company specializing in creating customized digital solutions, such as online platforms and applications, for diverse clients including NGOs, language schools, and system solutions firms. Reviews consistently highlight Evertop's strong project management, timely delivery, and flexibility, with 100% of reviewers praising their ability to meet deadlines and adapt to evolving project needs.
-
$1,000+< $25 / hr50 - 249Mumbai, India
Services provided
See all 1 projectsKanishka Software Private Limited is a software development company known for creating websites and apps with a strong focus on UI/UX design. Feedback indicates a high level of satisfaction, with 100% of reviewers praising their adherence to timelines and effective communication, leading to successful project outcomes without any noted areas for improvement.
-
$5,000+$25 - $49 / hr10 - 49Atlanta, GA
Services provided
See all 1 projectsMVP Now Studio is a CRM implementation company that assists businesses in configuring and integrating CRM systems like Zoho. The feedback from their clients is overwhelmingly positive, highlighting their detailed understanding of client needs and smooth workflow. Notably, 100% of reviewers expressed satisfaction with the solutions provided by MVP Now Studio.
-
$1,000+< $25 / hr10 - 49Gurugram, India
Services provided
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.
-
$10,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Services provided
See all 3 projectsAgilites is a software development and quality assurance company known for its expertise in QA services and software testing. They have received overwhelmingly positive feedback, with clients highlighting their professionalism, strong engineering capability, and effective integration into client teams. Approximately 100% of reviewers commend Agilites for their ability to understand complex software systems and their honest, reliable business ethics.
-
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.
-
$10,000+$50 - $99 / hr10 - 49Chennai, India
Services provided
See all 2 projectsSkcript is a technology solutions company specializing in web development, blockchain, robotic process automation, and mobile applications. Reviews indicate a strong focus on delivering scalable and timely solutions, with project management praised for responsiveness and adherence to timelines. Skcript receives predominantly positive feedback, with around 90% of reviewers highlighting their expertise and strong work ethic, though some note room for improvement in pre-sale responsiveness.
-
$5,000+$100 - $149 / hr2 - 9Calgary, Canada
Services provided
See all 3 projectsSozenTech Consulting Inc. is an IT consulting company specializing in curriculum design and implementation for technical training, as well as interactive smartphone application development. Across their reviews, 100% of clients highlight their commitment to understanding client needs and flexibility in project execution. Clients consistently praise their proactive and professional approach, with no negative feedback reported.
-
Undisclosed< $25 / hr10 - 49Raipur, India
Services provided
See all 1 projectsYourSofter IT Service Pvt. Ltd. is a software development company specializing in creating custom solutions like school management systems and websites. Feedback highlights their attention to detail, effective project management, and technical expertise, with 100% of reviewers noting satisfaction. Their ability to translate client needs into comprehensive solutions is highly praised, with no areas identified for improvement.
-
$1,000+< $25 / hr10 - 49
Services provided
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.
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies and their real-time quotes in minutes.
Get My QuotesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 Legacy Modernization Services
-
$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.