Top Application Modernization Services
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$10,000+< $25 / hr10 - 49Ho Chi Minh City, Vietnam
Services provided
See all 10 projectsMLTech Soft is a versatile technology company specializing in e-commerce development, CRM systems, and inventory management solutions. They consistently receive positive feedback for their tailored solutions and strong project management skills, with 100% of reviewers noting their ability to deliver on time and within budget. Reviewers often highlight their responsiveness and dedication to client success, making them a commendable partner for technology-driven projects.
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$25,000+$50 - $99 / hr10 - 49Tullamore, Ireland
Services provided
See all 4 projectsShare IT is a versatile IT company specializing in .NET development, SharePoint customization, and application development across various platforms. According to their reviews, 100% of clients appreciated their timely delivery, effective communication, and integration with client teams. Notably, 75% of reviewers highlighted their deep understanding of project requirements, while a few suggested room for developers to enhance their independence and broader business process knowledge.
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$25,000+$100 - $149 / hr2 - 9Hilversum, Netherlands
Services provided
See all 6 projectsVolare Software is a full-stack development company renowned for its expertise in web and custom software solutions, employing agile methodologies. Across varied projects, clients commend Volare Software for its effective communication, adaptability, and high-quality deliverables. Approximately 100% of the reviews highlight their transparency, collaborative spirit, and innovative problem-solving capabilities, underscoring a consistent theme of client satisfaction with no significant areas for improvement noted.
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$25,000+$150 - $199 / hr50 - 249Los Angeles, CA
Services provided
See all 14 projectsISBX Corp is a versatile software development company specializing in mobile app and web development. Across the reviews, the company consistently receives high praise for delivering projects on time with a strong focus on client communication and strategic partnership. Approximately 100% of reviewers highlight ISBX's reliability, professionalism, and ability to exceed expectations in design and functionality, along with innovative problem-solving capabilities.
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$10,000+$25 - $49 / hr1,000 - 9,999Cluj-Napoca, Romania
Services provided
See all 4 projectsAROBS is a versatile IT services company specializing in software development, product testing, and IT consulting across various industries. Reviewers commend AROBS for their flexibility, ownership of tasks, and strong project management skills. Approximately 75% of the feedback highlights their proactive communication and ability to meet deadlines, while some suggest improvements in client engagement and problem resolution processes.
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$50,000+$50 - $99 / hr10 - 49Baton Rouge, LA
Services provided
See all 11 projectsNovateus is a custom software development company with expertise in web and mobile app development, UI/UX design, and multi-tenant SaaS solutions. Their reviews are overwhelmingly positive, with approximately 100% of reviewers highlighting their project management skills, responsiveness, and ability to deliver quality solutions on time and within budget. Clients appreciate their communication, work ethic, and eagerness to learn, resulting in successful project outcomes.
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$25,000+$50 - $99 / hr10 - 49Troy, MI
Services provided
See all 10 projectsSharpQuest, Inc. is a software development company known for its expertise in custom application development, often leveraging technologies like .NET, SQL, and Azure. Client reviews highlight their strong project management skills, technical depth, and adaptability, with 100% positive feedback on their ability to meet deadlines and exceed expectations. Clients consistently praise their resourcefulness and flexibility in handling complex projects.
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$10,000+$100 - $149 / hr10 - 49Cluj-Napoca, Romania
Services provided
See all 6 projectsEMOTIONstudios is a versatile web development and digital solutions company known for delivering high-quality, responsive websites and applications. They excel in project management and communication, with 100% of reviews highlighting their timely delivery and responsiveness to client needs. Their expertise spans from app development to complex e-commerce and security solutions, earning them consistent praise for their technical acumen and client-focused approach.
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$75,000+$150 - $199 / hr10 - 49Otford, England
Services provided
See all 3 projectsecce. is a technology solutions company specializing in database management, API web services, and interface design. Their consistent ability to deliver projects on time with exceptional project management and clear communication is highlighted across their reviews. Notably, 100% of clients mention their adaptability and customer-centric approach as key strengths, with no negative feedback reported.
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$1,000+$50 - $99 / hr10 - 49
Services provided
See all 8 projectsOnePix is a versatile software development company known for its expertise in web and app development, technical SEO, and e-commerce solutions. The company consistently receives high praise, with approximately 95% of reviewers highlighting their impressive communication, project management, and problem-solving skills. Clients frequently commend their delivery speed, technical proficiency, and alignment with project goals, making them a trusted partner across various industries.
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$10,000+$50 - $99 / hr10 - 49Toronto, Canada
Services provided
See all 10 projectsDivNotes Inc. specializes in Enterprise Application Modernization, focusing on software platform update services to streamline workflows and enhance user interfaces. The company received predominantly positive feedback, with clients praising their effective communication and strategic approach, although there were some concerns about estimating and scheduling clarity. Overall, 80% of reviewers highlighted the intuitive UI improvements as a key benefit.
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$25,000+$100 - $149 / hr10 - 49Manchester, England
Services provided
See all 5 projectsVTS Software is a versatile software development company renowned for its expertise in developing and maintaining complex systems across various sectors, including automotive, utilities, media, influencer marketing, and performance management. The company's clients appreciate its technical proficiency and responsiveness, with 80% of reviews highlighting their quick bug resolution and impressive project management. However, 20% of clients noted occasional planning and cost challenges. Overall, VTS Software receives predominantly positive feedback for its commitment to delivering quality solutions.
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UndisclosedUndisclosed250 - 999Thành phố Hồ Chí Minh, Vietnam
Services provided
See all 5 projectsAXON ACTIVE is a software development company highly praised for its reliable and professional developers. With 100% positive feedback, clients commend their flexibility, cultural fit, and project management capabilities. Notably, 80% of reviewers appreciate their ability to adapt and integrate seamlessly with internal teams, highlighting their strong communication and technical expertise.
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$10,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
Services provided
See all 7 projectsKapowai is a fintech development company specializing in mobile banking solutions, UX/UI design, and digital transformation projects. Reviews consistently highlight their strong project management, proactive communication, and technical expertise in fintech. Clients often commend their ability to deliver projects on time and their flexibility, with over 90% mentioning effective communication and technical proficiency as standout traits.
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$10,000+Undisclosed50 - 249Lemesos, Cyprus
Services provided
See all 5 projectsCallCTO is a FinTech solutions provider known for its expertise in developing secure, scalable financial platforms. With a 100% positive feedback rate, clients consistently praise their agile project management, extensive industry knowledge, and commitment to understanding client needs. Their ability to improve operational efficiency and customer satisfaction through innovative solutions is frequently highlighted across reviews.
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$1,000+$25 - $49 / hr2 - 9Tallinn, Estonia
Services provided
See all 12 projectsStreet 17 is a versatile web development and design company, offering services that encompass web design, branding, CRM systems, and warehouse management solutions. Across reviews, clients highlight their effective communication, proactive project management, and strong alignment with company values. A significant 100% of reviewers commend Street 17 for their ability to transform complex ideas into actionable deliverables, while also emphasizing their commitment to client satisfaction and efficient service delivery.
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$50,000+$100 - $149 / hr10 - 49Jenison, MI
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See all 1 projectsTrailhead Technology Partners is a technology service provider specializing in web-based architecture overhauls, portal development, and e-commerce solutions. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their commitment and project management. Notably, they transformed Montage Furniture Services into a technological leader, achieving significant operational improvements and financial savings.
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$10,000+$25 - $49 / hr10 - 49Cluj-Napoca, Romania
Services provided
See all 7 projectsMoldoWEB is a software development company specializing in web and app development with expertise in Angular, NodeJS, and MongoDB. They consistently deliver high-quality work, evident from 100% positive feedback across multiple reviews. Clients commend their exceptional project management skills, quick adaptation to new requirements, and effective communication, often highlighting their deep technical expertise and commitment to timely delivery.
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$25,000+$50 - $99 / hr50 - 249Zagreb, Croatia
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See all 1 projectsTrue North is a technology company specializing in delivering tailored software solutions, as exemplified by their work on a Vendor Recommendation Engine project for Delivery Hero. The feedback highlights their strong technical team and timely delivery, with 100% of reviewers praising their competence and commitment. Reviewers did not note any areas for improvement.
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$10,000+$100 - $149 / hr10 - 49Plum, PA
Services provided
See all 1 projectsB-Three Solutions, Inc. is a software development company specializing in creating comprehensive safety and security platforms. Reviews indicate that 100% of feedback is positive, highlighting their collaborative project management, flexibility, and ability to rapidly transform concepts into deployable solutions. Their in-house, US-based team is praised for accessibility, consistency, and technical expertise.
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$1,000+Undisclosed50 - 249Dhaka, Bangladesh
Services provided
See all 2 projectsGenesys Softwares LLC is a comprehensive software development company specializing in UX/UI design, full-stack development, and platform optimization. Reviews indicate a 100% success rate in delivering scalable, efficient solutions with a focus on responsiveness and collaboration. Approximately 90% of clients commend their attentiveness and adaptability, noting their skill sets and effective communication as key strengths.
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$10,000+$100 - $149 / hr10 - 49Alpharetta, GA
Services provided
See all 3 projectsOneSpring is a digital services company specializing in UI/UX design, web development, and digital strategy. The company is highly praised for their efficiency and capability, with reviews noting their exceptional project management and innovative use of AI in digital strategies. Their services have been described as delivering a remarkable user experience, with 100% of reviews highlighting their strong communication and ability to work with minimal guidance.
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$50,000+Undisclosed1,000 - 9,999Cluj-Napoca, Romania
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See all 2 projectsAccesa is a custom software development company with expertise in developing Java applications and providing comprehensive IT support services. Reviews highlight their professionalism, understanding of client needs, and effective project management. Notably, 100% of clients report high satisfaction, with one reviewer specifically mentioning a perfect Net Promoter Score. However, there is a recommendation to improve their recruitment process to expand their team more efficiently.
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$25,000+$100 - $149 / hr10 - 49Spring, TX
Services provided
See all 6 projectsEspresso Moon is a versatile technology firm offering custom software development, web and app development, and branding services. They are lauded for their technical expertise, responsiveness, and transparent communication, with 87% of reviews highlighting their professionalism and ability to meet clients' needs. While they excel in adaptability and client engagement, 13% of reviews suggest a need for improved budget transparency. Overall, Espresso Moon is recognized for delivering high-quality, innovative solutions.
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$10,000+$25 - $49 / hr50 - 249Chennai, India
Services provided
See all 9 projectsVGTS Tech Company is an IT services firm specializing in web and mobile app development, UI/UX design, and AI-driven automation solutions. They have consistently received positive feedback for their ability to deliver projects on time and within budget, with 100% of clients highlighting their professionalism and flexibility. Their technical expertise and customer-centric approach have impressed clients, indicating a strong alignment with client needs and project goals.
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$10,000+$25 - $49 / hr50 - 249Bogotá, Colombia
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See all 2 projectsITSense Inc is a custom software development firm specializing in digital marketing strategy and technology consulting. Reviews highlight a strong customer-oriented approach with 100% on-time delivery and impressive incident resolution. Clients commend the firm's deep digital sector knowledge and value generation, though some suggest improving post-production support.
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$10,000+$50 - $99 / hr250 - 999Brno, Czech Republic
Services provided
See all 8 projectsARTIN specializes in Enterprise Application Modernization services, including software modernization and digital systems transformation. They receive high praise for their professionalism and effective communication, with 100% of reviews highlighting their ability to deliver projects on time, on budget, and within scope. Their flexibility and expertise in managing complex software projects are particularly noted, with 50% of reviewers emphasizing their smooth onboarding process.
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$10,000+$25 - $49 / hr10 - 49Mumbai, India
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See all 6 projectsApril Innovations is a mobile app development company that has demonstrated expertise in creating user-friendly applications across various sectors, including finance, productivity, and communication. Overall feedback is positive, with approximately 83% of reviews highlighting their project management skills and timely delivery. However, around 33% of reviews suggest improvements in design aesthetics. Their adaptability and understanding of market demands are frequently commended.
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$10,000+$25 - $49 / hr250 - 999Warszawa, Poland
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See all 15 projectsAzati Software is a versatile IT solutions and software development company, providing services such as custom software solutions, AI-based tools, and UX/UI design. Across reviews, they are praised for their professionalism, high-quality deliverables, and effective project management, with approximately 95% of feedback being positive. Clients frequently commend their proactive communication and adaptability, contributing to successful, on-time project delivery.
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$50,000+Undisclosed250 - 999Cochabamba, Bolivia
Services provided
See all 10 projectsAssureSoft is a software development company specializing in full-stack development, QA testing, and project management. Based on reviews, 90% of clients praise their exceptional project management, timely delivery, and cultural alignment. They are commended for their engineering skills, proactive communication, and strong cultural fit, with only 10% mentioning areas for improvement.
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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
34.9/40.019.2/20 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 -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
30.9/40.016.4/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
30% Enterprise App Modernization70% 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 -
$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 -
$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 / hr50 - 249Agoura Hills, CA
Ability to deliver
35.9/40.020/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
$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 -
$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
35% Enterprise App Modernization65% 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.