Top Application Modernization Services
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$1,000+Undisclosed10 - 49Denver, CO
Services provided
See all 14 projectsMOST Programming is a software development company specializing in custom software solutions, application support, and data visualization. Their reviews highlight a remarkable customer satisfaction rate, with over 90% of feedback emphasizing their exceptional project management, responsiveness, and attention to detail. Many clients (about 80%) appreciate their ability to transform complex requirements into user-friendly, high-quality deliverables, underscoring MOST Programming’s commitment to excellence and strategic partnership.
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$10,000+$150 - $199 / hr10 - 49Lake Oswego, OR
Services provided
See all 6 projectsSteelhead Software is a company specializing in Enterprise Application Modernization, particularly in software platform update services. They receive overwhelmingly positive feedback, with clients highlighting their transparency, collaborative approach, and ability to meet tight timelines and budgets. Impressively, Steelhead Software’s project management fosters continuous communication, ensuring client satisfaction and seamless digital systems transformation.
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$50,000+$150 - $199 / hr10 - 49Broomfield, CO
Services provided
See all 1 projectsLatitude 40 Consulting, Inc. is a technology consulting firm that specializes in modernizing business systems and integrating them with modern SaaS platforms. The company has received 100% positive reviews, with clients praising their responsiveness, effective project management, and ability to transform technology stacks and customer experiences. They are highlighted as a trusted partner in achieving business goals.
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$75,000+$100 - $149 / hr10 - 49
Services provided
See all 2 projectsDNA Solutions is a technology solutions company specializing in the development of analytical tools for operational efficiency. The overall feedback is highly positive, with clients noting a reduction in task completion time from five to two days and doubled employee satisfaction. Approximately 100% of reviewers commend their timely delivery and client-oriented approach, though some suggest improvements in tool maintenance.
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$25,000+$25 - $49 / hr50 - 249Pune, India
Services provided
See all 10 projectsIndexnine Technologies is a software development company specializing in UI/UX design, mobile and web app development, and QA testing across diverse domains. Reviewers consistently praise their responsiveness, project management, and cultural fit, resulting in over 90% positive feedback. Many highlight their ability to manage complex projects effectively and a commitment to client success, with approximately 70% of feedback mentioning their impressive technical capabilities and adaptability.
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$10,000+$100 - $149 / hr2 - 9Denver, CO
Services provided
See all 1 projectsForbina Consulting, LLC is an IT consulting firm specializing in Microsoft platform technologies and application development. Their clients consistently praise their skilled resources, excellent communication, and ability to deliver quality work on time. With 100% positive feedback, clients highlight their expertise and cultural alignment as key strengths, with no areas identified for improvement.
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$100,000+Undisclosed10 - 49McLean, VA
Services provided
See all 3 projectsLGNDX | The Product Innovation Studio is a distinguished provider of custom software development and UI/UX design services, particularly for defense and national security sectors. Across reviews, 100% of clients highlight their effective project management, rapid prototyping capabilities, and consultative design approach. Clients consistently report no negative feedback and commend their ability to translate business strategy into innovative product designs.
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$10,000+Undisclosed10 - 49Istanbul, Türkiye
Services provided
See all 4 projectsGG Tech Teknoloji is a versatile technology company specializing in website development and software systems, such as ERP solutions, for diverse industries including real estate and construction. Based on reviews, 100% of clients reported satisfaction with their project management and the customized solutions provided. Clients praised their 24/7 availability and ability to align with company values, with no reported areas for improvement.
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$10,000+$200 - $300 / hr10 - 49Reston, VA
Services provided
See all 2 projectsLean Innovation Labs is a company specializing in developing AI infrastructure and security solutions. Based on reviews, clients appreciate their alignment with company values and thoughtful design process. A significant 100% of reviewers mention their impressive project management and timely delivery, with no areas for improvement noted.
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$75,000+$150 - $199 / hr50 - 249San Antonio, TX
Services provided
See all 1 projectsWebhead is a web development company known for its comprehensive services and professionalism. Clients consistently praise their ability to deliver quality websites, with notable timeliness and personalized service. A majority of reviewers appreciate their consistent approach and effective communication, citing increased website visits post-launch as a key outcome.
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$50,000+$50 - $99 / hr10 - 49Sarasota, FL
Services provided
See all 1 projectsutilasoft is a software development company specializing in creating digital solutions such as custom apps for project management. Overall, the reviews are overwhelmingly positive, with clients praising utilasoft's responsiveness, effective communication, and cost-effectiveness due to their offshore team. Approximately 100% of reviewers are satisfied with their project outcomes and value their focus on maintaining core objectives.
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$5,000+Undisclosed10 - 49
Services provided
See all 4 projectsLeovoid Technologies, Inc. is a company specializing in Enterprise App Modernization, with a strong focus on web and application development. They received positive feedback for their collaborative approach, with 100% of reviews praising their communication and attention to detail. Clients noted their ability to improve operational efficiency and suggested enhancements to existing systems. However, more proactive progress updates were recommended.
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$1,000+$25 - $49 / hr250 - 999Hanoi, Vietnam
Services provided
See all 3 projectsEvolving from VNEXT SOFTWARE, established in 2008, VNEXT HOLDINGS is a global software development and DX partner with over 550 vetted IT professionals. Headquartered in Hanoi, with a branch in
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$100,000+$150 - $199 / hr1,000 - 9,999
Services provided
StatusNeo is an IT strategy consulting company headquartered in Dallas, Texas and Palo Alto, California. Founded in 2020, the team provides IT strategy consulting and Artificial Intelligence.
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$10,000+$25 - $49 / hr50 - 249Melbourne, Australia
Services provided
RailsFactory is a midsize software development company. Founded in 2006, the team specializes in Custom Software Development and IT staff augmentation.
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$10,000+$50 - $99 / hr50 - 249São Paulo, Brazil
Services provided
Codeminer42, an IT staff augmentation company, is in São Paulo, Brazil. They specialize in IT staff augmentation and Web Development and were founded in 2011.
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UndisclosedUndisclosed50 - 249London, England
Services provided
Codurance Ltd, a custom software development company, was launched in 2013. They offers Custom Software Development and Enterprise App Modernization.
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$5,000+$50 - $99 / hr10 - 49New York, NY
Services provided
See all 1 projectsSoftescu is an enterprise technology partner that combines deep technical expertise with unwavering security standards to deliver exceptional digital solutions. Since 2008, we've been helping
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$50,000+$200 - $300 / hr10 - 49Carlsbad, CA
Services provided
Launched in 2000, RemedyOne, a small custom software development company, is in Carlsbad, California. Their services include Custom Software Development and Web Development.
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$5,000+$100 - $149 / hr10 - 49Tulsa, OK
Services provided
Seed Technologies is a small website development firm. Founded in 2004, the team offers Web Development and Custom Software Development.
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$5,000+$100 - $149 / hr2 - 9Tillsonburg, Canada
Services provided
Opid Technologies Incorporated is a Tillsonburg, Canada-based software development firm. The team provides Custom Software Development and Enterprise App Modernization.
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$5,000+Undisclosed50 - 249Sheffield, England
Services provided
Nimble Approach is a midsize Digital Engineering company located in Sheffield, England and Leeds, England. Their services include Digital Engineering and Custom Software Development.
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$1,000+$50 - $99 / hr2 - 9Frisco, TX
Services provided
Raincurve is an AI company. Founded in 2026, the company is based in Frisco, Texas. Their services include Artificial Intelligence and AI Consulting.
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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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$50,000+$50 - $99 / hr10 - 49Las Vegas, NV
Services provided
See all 1 projectsTelestai Software was built by engineers, for CTOs and technical leaders who refuse to compromise on velocity, code quality and operational control. We serve as a high-velocity, nearshore extension
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$5,000+$150 - $199 / hr10 - 49Windermere, FL
Services provided
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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$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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$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Services provided
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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$25,000+$25 - $49 / hr250 - 999Jaipur, India
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See all 123 projectsThe NineHertz is a versatile IT services company specializing in app development, digital marketing, and automation solutions. They maintain high client satisfaction, with reviews highlighting their effective project management and expertise in advanced technologies. Approximately 90% of reviews commend their commitment to quality and communication, while nearly 80% emphasize their innovative approach, making them a trusted partner for complex business needs.
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$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Services provided
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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List of the Top 15 Legacy Modernization Services
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$25,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
39.3/40.019.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
39.1/40.020/20 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 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% 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 -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
37.2/40.017.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
34.2/40.016.4/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$25,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
33.8/40.018.2/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
37.2/40.017.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
35.9/40.020/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
35% Enterprise App Modernization65% 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 -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
38.7/40.019/20 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
36.6/40.016.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
Undisclosed$150 - $199 / hr250 - 999London, England
Ability to deliver
36.4/40.017.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.3/40.018.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% 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+$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 -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
35.8/40.016.4/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
Undisclosed$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
37.1/40.017.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Houston, TX
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.6/40.017.6/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
Undisclosed$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
36.8/40.020/20 Reviews7.2/10 Clients & Experience9.6/10 Market PresenceService focus
15% Enterprise App Modernization85% 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.