Top Application Modernization Services
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$10,000+$25 - $49 / hr2 - 9Bengaluru, India
Services provided
TerexSoft LLP is a software development firm founded in 2024. The agency focuses on Custom Software Development and Application Management & Support.
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$5,000+$150 - $199 / hr10 - 49Windermere, FL
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Established in 2017, Persepta is a business intelligence company. Located in Windermere, Florida, the team focuses on BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
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See all 22 projectsKMS Technology is a versatile software development company, providing services such as custom software development, voice agent scaling, and IT financial management solutions. Clients report high satisfaction with their project management and delivery, with over 90% of reviews highlighting their responsiveness, quality of deliverables, and effective communication. Common themes include excellent collaboration, timely delivery, and strong alignment with clients' goals.
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$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
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See all 19 projectsCSHARK is a software development company offering services such as SaaS solutions, fintech applications, and UX/UI design. Reviews indicate a 100% satisfaction rate, with clients praising their professionalism, prompt delivery, and high-quality code. Approximately 33% of reviewers highlight effective communication and project management, while 20% commend their innovative use of technology. However, minor improvements in communication have been noted.
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$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
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See all 12 projectsSenvio is an adept software development company specializing in creating bespoke applications and platforms, including SaaS, subscription management systems, and AI-powered solutions. Reviews are overwhelmingly positive, emphasizing Senvio's exceptional communication, flexibility, and adherence to project timelines. Approximately 100% of reviewers commend their professional project management and understanding of complex requirements, highlighting their capability to deliver user-friendly and efficient solutions.
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$5,000+< $25 / hr1,000 - 9,999
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See all 2 projectsArionERP is a company specializing in ERP consulting and web development services. Reviews indicate a high level of customer satisfaction, with 100% positive feedback praising their cost-effective pricing, responsive communication, and alignment with client values. Notably, 50% of reviewers commend their significant expertise and convenience in project management, and no areas for improvement were identified as major issues.
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$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
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See all 7 projectsCI&T, a prominent software development company, specializes in providing comprehensive IT solutions, including software engineering, product development, and support across various industries. Across their reviews, 90% of clients praise their proactive approach and strong communication, with 80% highlighting their ability to integrate seamlessly with in-house teams. Some clients noted areas for improvement in managing turnover and resource allocation. Overall, CI&T maintains a reputation for delivering high-quality, timely solutions.
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$100,000+$150 - $199 / hr50 - 249Southborough, MA
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See all 24 projectsAndPlus, An Ensono Company, is a platform development and systems integration firm specializing in web and mobile applications. They are highly praised for their professionalism, in-depth knowledge, and long-term project orientation, with approximately 90% of reviews highlighting their strong project management and collaborative approach. While their strengths lie in development and integration, some reviews note a need for improvement in e-commerce technology support and graphic design capabilities.
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$10,000+$50 - $99 / hr250 - 999Hudson, OH
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See all 29 projectsTaazaa Inc. is a software development company that excels in delivering comprehensive solutions across web and mobile platforms, focusing on design, development, and AI integration. With a remarkable 100% positive feedback rate, clients frequently praise their effective communication, timely delivery, and proactive project management. Their ability to align with client values and adapt to complex requirements underscores their dedication to customer satisfaction.
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$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
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See all 31 projectsSparq is a technology solutions provider specializing in leveraging AI and machine learning to extract insights from data for logistics and delivery companies. The reviews for Sparq are overwhelmingly positive, highlighting their efficient project management, timely delivery, and practical use of known platforms and tools, with no negative feedback reported. Clients appreciate their no-nonsense approach and alignment with company values.
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$5,000+$50 - $99 / hr250 - 999London, England
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See all 18 projectsSPD Technology is a versatile software development and engineering talent provider, known for delivering high-quality development services including AI tools, mobile apps, and comprehensive platform solutions. Reviews indicate overwhelmingly positive feedback, highlighting timely delivery, excellent project management, and strong professional relationships, with 100% of reviewers noting satisfaction with their commitment and performance. Many clients appreciate their responsiveness and ability to integrate seamlessly with internal teams.
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$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
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See all 42 projectsTepia is a software modernization company specializing in enterprise app modernization, with a focus on creating cross-platform applications. Clients commend Tepia for their meticulous attention to detail and timely delivery, with 100% of reviewers highlighting their effective communication and project management skills. Their work consistently meets project milestones, exemplifying their commitment to digital transformation and software platform update services.
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$50,000+$50 - $99 / hr50 - 249Miami, FL
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See all 45 projectsDevox Software is a software modernization company specializing in Enterprise App Modernization. In reviews, 100% of clients highlight their ability to modernize complex legacy systems and provide scalable, secure solutions. They are praised for their technical expertise and effective project management, consistently delivering projects on time while exceeding expectations.
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$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
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See all 5 projectsFCamara is a technology solutions provider specializing in developing custom platforms, IT infrastructure modernization, and AI integration. Reviews highlight their exceptional project management, technical expertise, and client collaboration, with 100% positive feedback praising their communication, delivery on time, and tailored solutions. A significant portion of reviews (75%) emphasizes their ability to enhance operational efficiency and drive innovation.
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$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
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See all 3 projectsEyzee is a dynamic IT company specializing in Enterprise Application Modernization and software modernization services. The reviews reflect a 100% positive sentiment, highlighting their exceptional client communication, punctuality, and flexibility in addressing customer needs, with all projects delivered efficiently and ahead of deadlines.
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$50,000+$100 - $149 / hr250 - 999London, England
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See all 10 projectsAscent is a UX/UI design company that has consistently demonstrated high expertise in user experience and interface design, as evidenced by their work on diverse projects such as web platforms, mobile apps, and complex software systems. Across reviews, 90% of clients praised Ascent for their professionalism, effective communication, and ability to deliver high-quality, intuitive designs. A notable 70% of the feedback emphasized their collaborative approach and flexibility in project execution.
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$50,000+$100 - $149 / hr250 - 999New York, NY
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See all 15 projectsIcreon is a digital solutions company offering diverse services including digital transformation, e-commerce platform development, and strategic digital marketing. Across its reviews, the firm is praised for its strategic problem-solving, dedication, and effective project management, with around 90% of clients highlighting their impressive ability to integrate seamlessly with existing teams. Clients consistently commend Icreon for their flexibility, responsiveness, and advisory capabilities, with no significant areas for improvement noted.
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$25,000+$50 - $99 / hr250 - 999Warszawa, Poland
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See all 28 projectsAltkom Software is a versatile IT services company specializing in software development, security assessments, and infrastructure solutions. Across numerous reviews, clients consistently praise Altkom Software for their technical expertise, effective communication, and timely project delivery. Approximately 90% of reviewers highlight Altkom's professionalism and comprehensive project management approach, making them a reliable partner for a diverse range of IT and software needs.
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$25,000+$50 - $99 / hr50 - 249Rybnik, Poland
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See all 14 projectsfireup.pro is a versatile software development company providing services in web and mobile application development, backend systems, and cloud computing implementation. Reviews consistently highlight their technical expertise, seamless integration with client teams, and ability to deliver projects on time, with over 90% of clients praising their commitment to understanding client needs and delivering high-quality results. Their project management style and proactive communication are frequently commended by clients.
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$10,000+$25 - $49 / hr50 - 249Portland, OR
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See all 26 projectsDarwoft is a versatile software development company specializing in web and mobile app development, with expertise in AI, computer vision, and cloud-based solutions. Across various reviews, clients consistently praise their professionalism, flexibility, and strong project management skills. Approximately 100% of reviewers express satisfaction with their deliverables, citing their ability to meet deadlines and adapt to changes as standout qualities. Darwoft is often commended for clear communication and aligning well with client needs and values.
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$10,000+$50 - $99 / hr10 - 49Farmington, MI
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See all 8 projectsDenovo Studios is a software modernization company specializing in enterprise application modernization services. They received 100% positive feedback for their flexible project management and ability to collaborate effectively, with 100% of reviews highlighting their impressive support and full-stack development capabilities. Reviewers commend their skill in modernizing legacy systems and delivering projects on time and within budget.
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$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
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See all 24 projectsGP Solutions is a software development company specializing in travel technology solutions, including ERP systems, custom booking platforms, and integrations. Their reviews highlight a strong emphasis on customizable services, technical expertise, and excellent project management skills. Approximately 90% of feedback is positive, with clients praising their responsiveness, communication, and commitment to delivering projects on time and within budget.
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$100,000+$25 - $49 / hr50 - 249Melbourne, Australia
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See all 4 projectsInsighture is a technology consulting company specializing in software development, performance optimization, and resource augmentation. The company's reviews are overwhelmingly positive, highlighting its cultural fit, agile project management, and ability to integrate seamlessly with clients' teams. Approximately 100% of reviewers praise Insighture's flexibility and commitment, with no significant areas for improvement noted.
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$50,000+$50 - $99 / hr250 - 999Palo Alto, CA
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See all 4 projectsTuring is a company specializing in providing software development talent for enterprise app modernization projects. Reviews indicate a 100% positive feedback rate, highlighting their ability to deliver timely, high-quality services with seamless project management and a global pool of skilled developers. Clients appreciate their transparent pricing and dedicated customer support.
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$1,000+$25 - $49 / hr50 - 249
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See all 38 projectsEvonence is a technology consulting firm specializing in cloud services, digital transformation, and enterprise application modernization. The company consistently receives positive feedback, with clients highlighting their efficiency and timeliness. Approximately 100% of reviewers commend their exemplary project management and ability to deliver projects on time, enhancing clients' operational efficiency and productivity.
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$25,000+$100 - $149 / hr50 - 249Sofia, Bulgaria
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See all 16 projectsResolute Software is an enterprise application modernization company known for its robust mobile app development services, particularly in agile environments. Reviews highlight their strong adherence to commitments and professionalism, with 100% of the feedback being positive regarding their consultative approach and timely project delivery, demonstrating exceptional capability in software modernization and digital transformation projects.
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$10,000+$50 - $99 / hr50 - 249Brno, Czech Republic
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See all 1 projectsBiQ Bluesoft a.s. is a web development company known for its expertise in website implementation and long-term project development, including CRM integration. The company has received entirely positive feedback, with clients praising their professional and efficient management. Notably, clients have experienced significant improvements, such as a 22-point increase in their Net Promoter Score following BiQ Bluesoft's contributions.
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$1,000+< $25 / hr50 - 249Jaipur, India
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See all 26 projectsExato Software is a specialized enterprise application modernization company dedicated to digital transformation and IT modernization. Reviews highlight their expertise in complex data integration and disaster recovery, with 100% of clients praising their project management and responsiveness. Clients particularly appreciate their user-friendly data visualization tools and strategic approach to long-term success.
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$10,000+$25 - $49 / hr50 - 249Da nang, Vietnam
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See all 10 projectsEnlab Software is a versatile software development company specializing in custom software solutions, including mobile and web applications. The overall feedback from reviewers is overwhelmingly positive, with approximately 90% praising their technical proficiency, effective communication, and project management. Common themes across reviews include timely delivery, adaptability, and high-quality deliverables, making them a preferred choice for long-term partnerships.
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$25,000+$50 - $99 / hr250 - 999Vilnius, Lithuania
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See all 23 projectsCivitta, an Enterprise Application Modernization company, receives positive reviews for its expertise in digital transformation and software modernization. Clients commend their communication, development quality, and commitment, with 100% of reviews highlighting successful project completion and timely delivery. Their ability to modernize enterprise applications and enhance system performance is a notable strength.
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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.