Top Application Modernization Services
-
$1,000+$25 - $49 / hr2 - 9Tallinn, Estonia
Services provided
See all 12 projectsStreet 17 is a versatile web development and design company, offering services that encompass web design, branding, CRM systems, and warehouse management solutions. Across reviews, clients highlight their effective communication, proactive project management, and strong alignment with company values. A significant 100% of reviewers commend Street 17 for their ability to transform complex ideas into actionable deliverables, while also emphasizing their commitment to client satisfaction and efficient service delivery.
-
$10,000+Undisclosed50 - 249Lemesos, Cyprus
Services provided
See all 5 projectsCallCTO is a FinTech solutions provider known for its expertise in developing secure, scalable financial platforms. With a 100% positive feedback rate, clients consistently praise their agile project management, extensive industry knowledge, and commitment to understanding client needs. Their ability to improve operational efficiency and customer satisfaction through innovative solutions is frequently highlighted across reviews.
-
$10,000+$25 - $49 / hr10 - 49Pimpri-Chinchwad, India
Services provided
See all 15 projectsInceptive Technologies is a versatile software development company specializing in web and mobile app development, QA testing, DevOps, and digital transformation services. They have received overwhelmingly positive feedback, with 100% of reviewers praising their communication, responsiveness, and ability to meet deadlines. A notable 50% of reviewers commend their seamless integration with internal teams and flexibility in adapting to evolving project needs.
-
$50,000+$100 - $149 / hr10 - 49Jenison, MI
Services provided
See all 1 projectsTrailhead Technology Partners is a technology service provider specializing in web-based architecture overhauls, portal development, and e-commerce solutions. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their commitment and project management. Notably, they transformed Montage Furniture Services into a technological leader, achieving significant operational improvements and financial savings.
-
$10,000+$25 - $49 / hr250 - 999Warszawa, Poland
Services provided
See all 15 projectsAzati Software is a versatile IT solutions and software development company, providing services such as custom software solutions, AI-based tools, and UX/UI design. Across reviews, they are praised for their professionalism, high-quality deliverables, and effective project management, with approximately 95% of feedback being positive. Clients frequently commend their proactive communication and adaptability, contributing to successful, on-time project delivery.
-
$1,000+Undisclosed50 - 249Dhaka, Bangladesh
Services provided
See all 2 projectsGenesys Softwares LLC is a comprehensive software development company specializing in UX/UI design, full-stack development, and platform optimization. Reviews indicate a 100% success rate in delivering scalable, efficient solutions with a focus on responsiveness and collaboration. Approximately 90% of clients commend their attentiveness and adaptability, noting their skill sets and effective communication as key strengths.
-
$50,000+Undisclosed1,000 - 9,999Cluj-Napoca, Romania
Services provided
See all 2 projectsAccesa is a custom software development company with expertise in developing Java applications and providing comprehensive IT support services. Reviews highlight their professionalism, understanding of client needs, and effective project management. Notably, 100% of clients report high satisfaction, with one reviewer specifically mentioning a perfect Net Promoter Score. However, there is a recommendation to improve their recruitment process to expand their team more efficiently.
-
$10,000+$25 - $49 / hr50 - 249Chennai, India
Services provided
See all 9 projectsVGTS Tech Company is an IT services firm specializing in web and mobile app development, UI/UX design, and AI-driven automation solutions. They have consistently received positive feedback for their ability to deliver projects on time and within budget, with 100% of clients highlighting their professionalism and flexibility. Their technical expertise and customer-centric approach have impressed clients, indicating a strong alignment with client needs and project goals.
-
$10,000+$25 - $49 / hr50 - 249Bogotá, Colombia
Services provided
See all 2 projectsITSense Inc is a custom software development firm specializing in digital marketing strategy and technology consulting. Reviews highlight a strong customer-oriented approach with 100% on-time delivery and impressive incident resolution. Clients commend the firm's deep digital sector knowledge and value generation, though some suggest improving post-production support.
-
$10,000+$50 - $99 / hr250 - 999Brno, Czech Republic
Services provided
See all 8 projectsARTIN specializes in Enterprise Application Modernization services, including software modernization and digital systems transformation. They receive high praise for their professionalism and effective communication, with 100% of reviews highlighting their ability to deliver projects on time, on budget, and within scope. Their flexibility and expertise in managing complex software projects are particularly noted, with 50% of reviewers emphasizing their smooth onboarding process.
-
$10,000+$25 - $49 / hr10 - 49Mumbai, India
Services provided
See all 6 projectsApril Innovations is a mobile app development company that has demonstrated expertise in creating user-friendly applications across various sectors, including finance, productivity, and communication. Overall feedback is positive, with approximately 83% of reviews highlighting their project management skills and timely delivery. However, around 33% of reviews suggest improvements in design aesthetics. Their adaptability and understanding of market demands are frequently commended.
-
$10,000+$25 - $49 / hr10 - 49L'viv, Ukraine
Services provided
See all 9 projectsRocket Harbor is a comprehensive software development company, providing services in DevOps, UX/UI design, API, web, iOS, and Android development. Across multiple reviews, 100% of clients praised their professionalism, adaptability, and effective project management. Approximately 80% emphasized their ability to consistently meet deadlines and exceed expectations, while 60% highlighted their expertise in complex projects and innovative solutions.
-
$5,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsNetForemost, Inc is a software development company specializing in creating mobile and web applications. Their clients report satisfaction with their services, highlighting their innovative approach and commitment to project success. Approximately 100% of reviews praise their capability and proactive communication, although there are occasional mentions (50%) of challenges with calculating project velocity and timeliness.
-
$25,000+$50 - $99 / hr50 - 249Toronto, Canada
Services provided
See all 11 projectsDedicatted offers services including consulting on AWS services, access management, and CI/CD solutions, often within the context of Enterprise App Modernization. Reviews highlight their responsiveness, knowledge, and effective project management. Clients appreciate their ability to deliver working deliverables and adapt workflows efficiently, indicating a strong capacity for IT modernization and digital transformation projects.
-
$5,000+$25 - $49 / hr10 - 49Karachi, Pakistan
Services provided
See all 3 projectsZenveus is a versatile technology development company specializing in AI-powered tools and backend AWS development. Reviews highlight their impressive communication skills, timely delivery, and adaptability, with 100% of reviewers praising their project management and problem-solving capabilities. Clients appreciate their ability to deliver solutions that meet requirements efficiently without unnecessary features.
-
$10,000+Undisclosed10 - 49Oak Park, IL
Services provided
See all 5 projectsUptic IO LLC is a company specializing in Enterprise Application Modernization, focused on optimizing app performance and usability through software modernization. Feedback indicates a 100% satisfaction rate with their project management, timely delivery, and communication. Reviewers consistently highlight their excellent organization and skillset, with no noted areas for improvement.
-
$50,000+$25 - $49 / hr50 - 249Bratislava, Slovakia
Services provided
See all 3 projectsSYTOSS is a software development company noted for its versatile and technically skilled team, providing services such as developing software suites, web and mobile applications, and internal systems. The company's reviews reflect a high level of satisfaction, with approximately 100% of clients highlighting their good value for cost, culture fit, and alignment with client needs. Their project management is generally reliable, with occasional minor delays, and they are praised for their communication and proactive assistance.
-
$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.
-
$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.
-
$10,000+$200 - $300 / hr50 - 249New York, NY
Services provided
See all 2 projectsZertain is an IT consulting firm specializing in CRM development, low-code solutions, and technical support across various platforms, including PHP, WordPress, and Power BI. Reviews highlight their excellent communication and responsiveness, with 100% of clients appreciating their problem-solving and adaptability. Clients consistently report satisfaction with their project outcomes and commend Zertain for their efficient project management and alignment with client values.
-
$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.
-
$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.
-
$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.
-
$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.
-
$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.
-
$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.
-
$10,000+Undisclosed2 - 9Houston, TX
Services provided
See all 1 projectsCrrraw Holdings LLC is a development company specializing in mobile app and backend solutions. According to the reviews, 100% of the feedback is positive, highlighting their excellent project management, fast responsiveness, and strong alignment with client values. Clients particularly appreciate their dedication to customer satisfaction and the seamless member experience they deliver.
-
$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.
Read more -
$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.
Read more -
$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.
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 Legacy Modernization Services
-
$25,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Enterprise App Modernization70% 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 - 999Miami, FL
Ability to deliver
38.1/40.019/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% 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 -
$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 -
$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 -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
34/40.018.4/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% 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 / 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 -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
37.1/40.017.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
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+< $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 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
36.5/40.016.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
36.4/40.017.2/20 Reviews10/10 Clients & Experience9.2/10 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 -
$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+$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 -
$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 -
$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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.5/40.019.4/20 Reviews10/10 Clients & Experience9.1/10 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 -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.4/40.017.4/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% Enterprise App Modernization70% 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+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
35.2/40.016.6/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
30% Enterprise App Modernization70% 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
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.