Top Application Modernization Services
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$5,000+$50 - $99 / hr50 - 249Paris, France
Services provided
See all 5 projectscode.store is a versatile development company specializing in CMS migrations, digital platform creation, and mobile app development. Reviewers frequently commend their flexibility, responsiveness, and effective project management. Approximately 80% of reviews highlight their adaptability and ability to meet expectations, while 70% mention their strong communication and project management skills. However, some reviews suggest improvements in documentation and visibility on bug resolution timelines.
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$50,000+$50 - $99 / hr10 - 49Warszawa, Poland
Services provided
See all 3 projectsWislaCode Solutions is a software development company specializing in frontend and middleware solutions, with a strong emphasis on reliability and technical improvement. Reviews highlight their delivery reliability, meeting 100% of deadlines across multiple projects, and their capability to suggest proactive technical enhancements. Clients appreciate their responsiveness and integration into existing teams. Overall, feedback is overwhelmingly positive, with no significant areas for improvement mentioned.
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UndisclosedUndisclosed50 - 249Hopkins, MN
Services provided
See all 2 projectsAubrant Digital is a company specializing in Enterprise Application Modernization, focusing on modernizing legacy systems and enhancing digital transformation through robust API development. Feedback indicates a 100% satisfaction rate, with clients appreciating their alignment with project goals and commitment to understanding client needs.
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$10,000+$25 - $49 / hr50 - 249Bengaluru, India
Services provided
See all 4 projectsAufait Technologies Pvt. Ltd is a technology solutions company specializing in SharePoint and mobile app development. The company boasts a 100% satisfaction rate among users and management, with clients praising their quick problem-solving skills, effective project management, and flexible approach. However, some feedback suggests a need for increased regional resource deployment.
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$10,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsMoai Team is a full-service IT company specializing in web and mobile app development. They have consistently demonstrated strong project management skills, with reviewers highlighting their responsiveness and innovative solutions. Approximately 100% of the feedback is positive, emphasizing their professionalism, creativity, and effective communication. Moai Team has successfully delivered complex projects, significantly enhancing user engagement and satisfaction.
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$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Services provided
See all 8 projectsFREYSOFT is a development company specializing in providing fintech and startup solutions, including mobile applications, front-end engineering, and web development. Their reviews highlight exceptional professionalism, problem-solving capabilities, and timely delivery, with 100% of feedback being positive. Clients frequently commend their smooth communication and reliability, making them a preferred choice for tech-driven projects.
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$25,000+Undisclosed50 - 249London, England
Services provided
See all 3 projectsesynergy is a company specializing in Enterprise Application Modernization and cloud native development. Their reviews highlight a strong commitment to client success, with 100% positive feedback on their ability to deliver significant value and high-performance outcomes. Clients appreciate their collaborative approach and talented network, consistently praising esynergy for achieving objectives efficiently and effectively.
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$5,000+$25 - $49 / hr50 - 249دبي, United Arab Emirates
Services provided
See all 13 projectsLatent - An Alpha OBS LLP Venture is a versatile software development company that specializes in creating web and mobile applications, often integrating AI and ML solutions. Client feedback is overwhelmingly positive, with over 90% of reviews highlighting their timely delivery and budget-friendly pricing. Customers frequently praise their ability to adapt to various technological needs and their high level of project management.
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$10,000+$100 - $149 / hr10 - 49
Services provided
See all 5 projectsBit Complete is a specialized software development consultancy known for their expertise in creating scalable AI solutions, custom CMS, and application platforms. Reviews indicate that 100% of feedback is positive, highlighting their exceptional communication, promptness, and technical leadership. Clients often commend Bit Complete for their ability to adapt to changing needs and deliver high-quality work on schedule.
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Undisclosed< $25 / hr50 - 249Chennai, India
Services provided
See all 10 projectsAgriya is a versatile software development company recognized for providing custom web and mobile application solutions. Feedback from various reviewers highlights Agriya’s commitment, technical expertise, and effective communication. Approximately 80% of reviewers appreciated their dedication and quality of service, though some noted areas for improvement in design accuracy and testing. Overall, Agriya is highly regarded for delivering cost-effective and responsive development services.
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$10,000+Undisclosed50 - 249Chicago, IL
Services provided
See all 5 projectsalligatortek is a software development company specializing in custom solutions, including data integration, UI/UX design, and productivity-enhancing tools. Reviews indicate a 100% positive feedback rate, with clients praising their prompt project delivery, strong customer service, and dedication to understanding business needs. Impressively, 80% of reviewers highlight their project management skills, emphasizing their efficiency and ability to meet changing requirements.
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$10,000+$50 - $99 / hr10 - 49Vicenza, Italy
Services provided
See all 4 projectsHeveloon ltd is a custom software development company that specializes in creating applications, algorithms, and marketplaces with technologies such as AWS, Python, and JavaScript. The company receives high praise for its professionalism and flexibility, with approximately 90% of reviewers highlighting their project management skills and responsiveness. Though timelines can be challenging due to resource constraints, clients are impressed by the team's technical expertise and client-focused approach.
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$10,000+$25 - $49 / hr10 - 49
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See all 6 projectsArccus Inc. is a versatile development company specializing in mobile and web applications. With a 100% satisfaction rate, their clients commend their effective project management, timely delivery, and customer-oriented communication. Notably, 80% of reviews highlight their excellent alignment with client values, emphasizing their dedication to understanding and delivering on client needs, resulting in improvements such as a 75% increase in website traffic and streamlined operations.
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$10,000+$25 - $49 / hr10 - 49Oviedo, Spain
Services provided
See all 6 projectsABAMobile is a mobile app development company known for its expertise in creating tailored app solutions, including NFC technology and management backends. The company receives positive feedback for its project management, timely delivery, and personalized service, with 100% of reviewers appreciating their communication and adaptability. While they excel in understanding client needs, some suggest they could offer more proactive advice on project improvements.
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$5,000+$25 - $49 / hr10 - 49Adelaide, Australia
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See all 11 projectsTelexar Technologies is a versatile software development company specializing in customized applications, CRM solutions, and web development. Overall, 100% of the reviews are positive, highlighting their impressive project management, technical skills, and cost-effective solutions. Notably, 40% of reviewers mention their excellent communication and flexible pricing as standout qualities.
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$10,000+$25 - $49 / hr250 - 999Beverly Hills, CA
Services provided
See all 47 projectsIndiaNIC Infotech Limited is a versatile software development company offering services in web and mobile app development, as well as eCommerce solutions. The reviews reflect a mixed reception with approximately 60% positive feedback highlighting their reliability, teamwork, and project management, while 40% indicate areas for improvement, particularly in communication and quality of deliverables.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 6 projectsCodesClue Technologies is a software development company known for creating custom software solutions that streamline operations and improve data visibility. With 100% positive feedback, clients commend their efficient project management, timely delivery, and excellent understanding of industry-specific challenges. Multiple reviewers highlight their ability to deliver practical, scalable solutions that align with business needs.
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$1,000+< $25 / hr50 - 249Ahmedabad, India
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See all 10 projectsConcetto Labs is a versatile software development company specializing in mobile and web applications, as well as custom software solutions. The reviews indicate a high level of client satisfaction, with around 85% of the feedback highlighting their strong communication skills and timely delivery of projects. Clients frequently commend Concetto Labs for their dedication, technical expertise, and ability to understand and meet diverse project requirements.
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$10,000+$150 - $199 / hr10 - 49Houston, TX
Services provided
See all 6 projectsEpicenter Consulting is a firm specializing in Enterprise Application Modernization, offering services that enhance workflow and operations. Reviewers highlight their attentiveness, innovation, and thoroughness, with 100% positive feedback on timely project delivery and problem-solving capabilities. Most clients were impressed by their effective communication and budget-friendly pricing.
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$5,000+$100 - $149 / hr10 - 49Sausalito, CA
Services provided
See all 5 projectsAtricore is a technology solutions company specializing in identity management and software integration services. The company garners positive feedback, with approximately 90% of reviewers praising their attention to detail, project management, and customer service. Atricore's expertise in seamless integration and flexible engagement models are frequently highlighted, with some clients noting minor delays in specific cases due to project scope changes.
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$50,000+$100 - $149 / hr10 - 49Irvine, CA
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See all 4 projectsCompany A is a technology and web development firm specializing in seamless CMS integration, agile project management, and customized solutions for diverse industries. Across their reviews, 100% of clients praised their professional collaboration and customer service, with 75% highlighting their effective use of agile methodologies. Areas for improvement include better client team guidance and expanded service offerings.
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$10,000+$25 - $49 / hr10 - 49Centurion, South Africa
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See all 1 projectsTypeDev.io is a development company specializing in building web applications, web widgets, and mobile apps. The overall feedback is overwhelmingly positive, with 100% of reviewers praising their timely delivery, excellent communication, and ability to expand their team while maintaining talent. The company is also recognized for offering good value for cost.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 35 projectsIT Path Solutions is a multifaceted IT development company specializing in web and software development, offering services such as website creation, platform development, and custom coding. Across the reviews, 100% of clients appreciated their cost-effective services, with 90% highlighting their strong project management skills and timely delivery. Clients also praised their clear communication, adaptability, and collaborative approach.
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$1,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 1 projectsASP.Net Zero Developers is a web development company specializing in building scalable platforms and ongoing support. Feedback indicates overwhelmingly positive experiences, with 100% of reviewers noting timely delivery and responsiveness. The company is praised for exceeding expectations and fostering a partnership-like relationship with clients, though improvement in communication regarding holidays is suggested by some clients.
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$50,000+$100 - $149 / hr2 - 9London, England
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See all 1 projectsSeb Azzo is a development company specializing in creating digital branding solutions, notably their product Brand Cloudlines. The company is praised for its simplicity, flexibility, and ongoing support, with clients highlighting their proactive communication and commitment to project success. Approximately 100% of the feedback is positive, emphasizing their collaborative approach and the effectiveness of their solutions.
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$5,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 6 projects5Hz is a web development company noted for delivering comprehensive digital solutions, including website and e-commerce development, CRM integration, and UX/UI design. They have received overwhelmingly positive feedback, with clients praising their timely delivery, effective communication, and proactive approach, with 100% of reviews highlighting their excellent project management and no suggestions for improvement.
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$50,000+$100 - $149 / hr50 - 249Portland, OR
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See all 6 projectsAltSource Software is a custom software development company that provides tailored solutions for diverse industries, including finance, healthcare, and field services. The reviews indicate a strong focus on robust project management and effective communication, with a commitment to understanding client needs. Approximately 80% of reviewers praise AltSource Software for their technical expertise, responsiveness, and ability to deliver impactful solutions, although some note challenges with timeline and budget adherence.
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$10,000+$25 - $49 / hr1,000 - 9,999Princeton, NJ
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See all 11 projectsCygnet.One is a versatile software development company offering a range of services, including mobile app development, backend development, and integration solutions. The company has consistently received positive feedback from its clients, with impressive technical expertise and effective project management being frequently highlighted. Approximately 85% of reviewers commend Cygnet.One for its skilled developers and reliability, while some suggest improvements in communication and familiarity with local markets.
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$25,000+$25 - $49 / hr250 - 999Cincinnati, OH
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See all 8 projectsITCube Solutions Pvt. Ltd. is a multifaceted IT solutions provider specializing in custom software development, web applications, and SharePoint solutions. Their clients consistently commend their commitment to quality, effective collaboration, and strong project management skills. Approximately 90% of the feedback highlights their ability to meet expectations and deliver functional, high-quality products, though some reviews suggest improvement in graphical design direction.
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$10,000+$25 - $49 / hr50 - 249Montevideo, Uruguay
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See all 1 projectsDVelop Software Solutions is a software development company specializing in building operational platforms, with notable expertise in the Unity Space in Uruguay. They consistently deliver high-quality results, demonstrating commitment and professionalism. Approximately 100% of the feedback highlights their successful project management and dedication to client needs, with no significant areas for improvement noted by reviewers.
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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 -
$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.