Top Application Modernization Services
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Undisclosed$25 - $49 / hr250 - 999Ahmedabad, India
Services provided
See all 8 projectsStridely Solutions is a technology services company specializing in software development, systems integration, and IT consulting. Across various projects, they have received overwhelmingly positive feedback, with clients praising their expertise, dedication, and effective communication. Approximately 90% of reviews highlight their ability to deliver on time and meet client expectations, while also emphasizing their innovative solutions and customer-first approach.
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$5,000+$100 - $149 / hr2 - 9Charlottesville, VA
Services provided
See all 2 projectsCoshx is a mobile app development company renowned for transforming complex ideas into well-designed mobile applications. The company receives overwhelmingly positive feedback, with clients praising their exceptional project management, communication, and collaborative approach. Approximately 100% of reviewers highlight their thoughtfulness and commitment to client projects, often feeling like partners rather than service providers.
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$10,000+$25 - $49 / hr10 - 49
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See all 2 projectsPolyxer Systems is a company specializing in Enterprise Application Modernization, offering services to modernize legacy systems with expertise in C# and .NET. Reviews indicate 100% positive feedback, highlighting their impressive technical skills, excellent project management, and timely delivery. Their strong understanding of client needs and effective communication are frequently praised.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projectsXelleron Pty Ltd is a software development company specializing in Xero integration and financial data manipulation tools. Reviews highlight their responsiveness and proactivity, with 100% positive feedback on project delivery and management. Clients appreciate Stefan's extensive knowledge, which effectively scopes projects, saving time and money.
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$5,000+$25 - $49 / hr10 - 49Pune, India
Services provided
See all 4 projectsVibeosys Software Pvt Ltd is a software development company known for building web and mobile applications. Reviews reflect a mixed sentiment; one client praises their integrity and reliable project management, while another criticizes the robustness of the applications developed. Approximately 50% of reviews highlight effective communication and honesty, but 50% express concerns over technical execution and application sustainability.
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$1,000+$25 - $49 / hr10 - 49Coimbatore, India
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See all 2 projectsDATACLAP DIGITAL is a company specializing in UI/UX and backend development, particularly for healthcare services. Overall feedback highlights their ability to enhance user interaction and deliver user-friendly designs efficiently, noted by 100% of reviewers. The cooperation is described as seamless and highly interactive, with 100% of users appreciating their dedication and work ethic, although some suggest improvements in project status communication.
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$1,000+< $25 / hr10 - 49Bhubaneswar, India
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See all 3 projectsYoctotta Softwares Private Limited is a versatile software development company specializing in web development, mobile application creation, and tailored software solutions. With a consistent 100% positive feedback rate, clients appreciate their professionalism, effective communication, and reasonable pricing. Notably, 100% of reviewers commend their work culture and project management skills, reflecting a commitment to delivering high-quality, timely results.
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$1,000+< $25 / hr10 - 49Newcastle, WA
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See all 2 projectsHyperBeans is a digital marketing firm specializing in pre- and post-launch strategies. Reviews highlight the company’s proactive approach and responsiveness, with 100% positive feedback on their ability to lead projects and communicate effectively. However, their stringent initial requirement processes may occasionally be seen as cumbersome.
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$5,000+$50 - $99 / hr2 - 9Sofia, Bulgaria
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See all 4 projectsQualiSage is a digital development and SEO company specializing in creating and enhancing web platforms and applications, with a focus on user experience and efficiency. The company received overwhelmingly positive feedback, with 100% of reviewers praising their responsiveness, communication, and ability to deliver high-quality work on time. Their technical expertise and customer-centric approach were consistently highlighted as impressive and unique.
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$1,000+$25 - $49 / hr2 - 9Lviv, Ukraine
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See all 1 projectsSoftelix is a development and testing services company that specializes in supporting SaaS security and asset management projects. Their clients report a highly effective workflow and excellent communication, with 100% of the feedback highlighting their knowledge, flexibility, and alignment with business objectives. Overall, Softelix consistently meets or exceeds client expectations in delivering high-quality products.
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$1,000+$100 - $149 / hr2 - 9
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See all 1 projectsStart State is a technology firm specializing in app and web development, recognized for creating efficient solutions tailored to client needs. Reviews highlight their exceptional project management, with 100% of feedback praising their communication and quick problem resolution. Clients commend their ability to recommend cost-effective technologies and deliver precisely on project requirements, contributing significantly to operational efficiency.
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$1,000+$25 - $49 / hr10 - 49Tartu, Estonia
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See all 2 projectsCrewNew.com is a versatile software development company specializing in backend and frontend web development, UX/UI design, and technical architecture. Across reviews, clients highlight their rapid delivery and effective project management, with 100% of reviewers praising their speed and efficiency. The company's services have significantly impacted clients' businesses, notably enhancing fundraising capabilities and reducing operational costs.
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$5,000+$25 - $49 / hr2 - 9Valley Cottage, NY
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See all 1 projectsMylaensys is a technology company specializing in innovative cloud-based payment solutions for the parking industry. Reviews highlight their unique approach to payment processing, flexibility, and commitment to customer needs, with 100% positive feedback emphasizing their original solutions and exceptional availability. Their groundbreaking system allows seamless financial transactions without transaction fees, setting them apart in the market.
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UndisclosedUndisclosed50 - 249Washington, DC
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See all 1 projectsMacro Solutions is an IT consulting firm specializing in application operations and modernization services. With a successful track record since 2018, they have consistently demonstrated strong technical leadership, particularly in DevSecOps and CI/CD implementation for over 25 applications. Reviews highlight their solid project management and integrity, with 100% positive feedback regarding their technical expertise and customer collaboration.
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$10,000+$50 - $99 / hr10 - 49
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See all 3 projectsWeb Bespokers is a versatile development company specializing in custom software solutions, API integrations, and platform enhancements. Across three detailed reviews, the company received 100% positive feedback, highlighting their engineering expertise and effective project management. Clients praised their speed, flexibility, and communication, although timezone differences were noted as a minor challenge. Overall, Web Bespokers is valued for driving technological advancements and meeting complex project demands.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 10 projectsGoCinico is a web development and digital solutions company, known for delivering high-quality website redesigns, custom CRM systems, and logo designs. Their reviews highlight a strong work ethic, timely project delivery, and excellent communication, with 100% of respondents commending their professional approach. Clients praise their team for aligning company values and producing impressive results, making them a reliable partner for various digital needs.
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$1,000+Undisclosed50 - 249Beograd, Serbia
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See all 7 projectsMainstream is a digital transformation company specializing in Enterprise Application Modernization services. They received consistently positive feedback, with clients highlighting their professional project management and timely delivery. Approximately 100% of reviewers noted their impressive handling of IT modernization projects, emphasizing their expertise in platform modernization and software systems updates.
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$1,000+< $25 / hr10 - 49Indore, India
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See all 2 projectsInfinity Genesis Techso Pvt. Ltd. is a digital services company specializing in web development and digital marketing. Reviewers highlight their excellent technical capabilities, efficient project management, and cost-effectiveness, with 100% of feedback being positive. Clients appreciate their responsiveness to change requests and timely delivery, but suggest expanding their marketing reach.
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$25,000+$50 - $99 / hr10 - 49
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See all 5 projectsDEMY Software Services Ltd is a versatile software development company specializing in end-to-end solutions, including UI/UX design, software architecture, and complex algorithm development. Reviews indicate a high level of client satisfaction, with approximately 90% of reviewers highlighting the company's strong project management and responsiveness. Clients commend their flexibility, timely delivery, and effective integration with existing systems, with no significant areas for improvement mentioned.
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$100,000+$150 - $199 / hr2 - 9
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See all 2 projectsGrowthMob is a strategic marketing and development company specializing in web design, platform upgrades, and digital marketing solutions. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their exceptional project management, strategic-technical integration, and adaptive problem-solving. GrowthMob is recognized for their effective communication and ability to tailor solutions that exceed client expectations.
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$10,000+$100 - $149 / hr50 - 249Golden, CO
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See all 3 projectsDSR Corporation is a versatile technology company specializing in IoT platforms, cybersecurity, and software development, including web and mobile solutions. They are commended for their expertise, innovation, and ability to deliver high-quality, well-structured software on time, with 100% of reviewers highlighting their technical proficiency and attentive project management. Areas for improvement include enhancing communication fluidity and reducing planning bureaucracy.
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$10,000+$200 - $300 / hr10 - 49Greenwood Village, CO
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See all 1 projectsQuandary Consulting Group is a consulting firm specializing in creating custom Quickbase CRM solutions to enhance project efficiency. Reviews highlight their ability to deliver on time, with 100% positive feedback on their attention to detail and project management. Clients report increased efficiency and faster production as a result of their services.
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$1,000+$25 - $49 / hr10 - 49Chennai, India
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See all 3 projectsHueint Pvt Ltd is a dynamic application software development company specializing in mobile app and UX design, offering robust design and development services across various industries. Client feedback indicates 100% positive experiences, highlighting strong customer focus, professional integration, and impressive engineering efficiency. Some suggestions for improvement include expanding technical expertise and increasing staffing.
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$1,000+$150 - $199 / hrFreelancerSan Mateo, CA
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See all 1 projectsGCX Solutions is a digital strategy and user experience agency known for its expertise in user testing and digital product design. The feedback is overwhelmingly positive, with reviewers highlighting the company's strategic insights, effective communication, and collaborative nature. Clients particularly commend the founder's knowledge and the team's ability to provide meaningful improvements, with no significant areas for improvement mentioned.
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UndisclosedUndisclosed10 - 49
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See all 1 projectsDigital is Simple is an AI development and outstaffing company specializing in API integrations, workflow automation, and connecting AI models to existing systems. All reviews reflected positively on their punctuality and project delivery, as evidenced by on-time project completion and a satisfied client, indicating a 100% positive feedback rate. Clients praised their smooth project management and cultural alignment, with no suggestions for improvement mentioned.
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$5,000+$25 - $49 / hr2 - 9Kingston, Jamaica
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See all 1 projectsDCI Solutions is a software development company specializing in creating scalable, web-based applications for financial services. Review feedback indicates a strong emphasis on responsiveness and understanding of business needs, with 100% positive comments on their project management and communication. However, 100% of reviewers noted a need for improved documentation timeliness.
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$10,000+$25 - $49 / hr10 - 49
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See all 10 projectsF22 Labs is a versatile software development company specializing in mobile and web application development. The company is highly praised for its professionalism, flexibility, and innovative problem-solving, as evidenced by consistently positive feedback across all reviews. Clients frequently commend their ability to meet tight deadlines and adapt to changing requirements, with approximately 80% noting their impressive project management and responsiveness.
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$5,000+$100 - $149 / hr2 - 9Toronto, Canada
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See all 2 projectsUp at Five is a web development company specializing in creating customized Shopify themes and website redesigns. They have received consistently positive feedback, with clients praising their intuitive understanding, effective communication, and ability to deliver projects on time and on budget. Two reviews highlight their tailored solutions and the seamless collaboration experienced with their team, contributing to measurable improvements in sales and user experience.
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$10,000+$25 - $49 / hr10 - 49Madrid, Spain
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See all 3 projectsredradix is a web development company with a strong focus on front-end development and usability. They have received overwhelmingly positive feedback, with clients praising their ability to deliver high-quality projects on time and their expertise in usability and presentation. Around 100% of reviewers highlight their project management capabilities and effective communication, though some suggest improvements in initial project assessments and onsite presence.
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$25,000+$25 - $49 / hr50 - 249Chennai, India
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See all 7 projects10decoders is a versatile IT services company specializing in software development, IT consulting, and staff augmentation. Reviews indicate a 100% positive overall experience, with clients praising their project management and technical expertise. Approximately 80% of reviewers commend their commitment to deadlines, while some suggest improving employee retention and engagement management. Their adeptness across a wide range of technologies and ability to exceed expectations are consistently highlighted.
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List of the Top 15 Legacy Modernization Services
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$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
38.5/40.019.4/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
35.9/40.016.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
35.4/40.015.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35/40.017/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
34.2/40.018.6/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
34/40.015.2/20 Reviews8.8/10 Clients & Experience10/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
37.3/40.017.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
39.1/40.019.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.9/40.019/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
36.8/40.017.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
36.8/40.016.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
32.2/40.015.8/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$50,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
36/40.016.6/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
36.8/40.018/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Lakeville, MN
Ability to deliver
37/40.017.2/20 Reviews9.9/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$150 - $199 / hr50 - 249Montréal, Canada
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
35.3/40.016.8/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
38.3/40.019.2/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
33.3/40.016/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$50 - $99 / hr50 - 249Prague, Czech Republic
Ability to deliver
39.2/40.020/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
35.1/40.016.8/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
36.5/40.016.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$100 - $149 / hr50 - 249Belfast, Northern Ireland
Ability to deliver
37/40.017.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Enterprise App Modernization80% 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.