Top Application Modernization Services
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$10,000+$50 - $99 / hr50 - 249Minsk, Belarus
Services provided
See all 5 projectsArmada Labs is a software development company known for creating custom software solutions, data visualization, and web-based platforms across various industries. The company has received overwhelmingly positive feedback, with clients highlighting their agile flexibility, effective communication, and industry expertise. Approximately 80% of reviewers praised their ability to understand complex requirements and deliver user-friendly solutions, while no significant criticisms were noted.
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$25,000+$25 - $49 / hr10 - 49
Services provided
See all 16 projectsOSSystem is a software modernization company specializing in Enterprise App Modernization and digital transformation services. Their exceptional project management and communication, highlighted by 100% positive feedback, are frequently praised by clients. OSSystem effectively aligns with client values and budgets, delivering critical software solutions that drive key business decisions.
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$10,000+Undisclosed50 - 249
Services provided
See all 6 projectsAstec is a software development company specializing in IT system support, application development, and mobile consulting. Across the reviews, 100% of clients praised their technical expertise, project management skills, and flexibility. Clients highlighted their high-quality code, effective communication, and ability to integrate seamlessly into existing teams, with multiple reviews emphasizing their responsiveness and proactive approach to problem-solving.
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$75,000+$25 - $49 / hr50 - 249Rio de Janeiro, Brazil
Services provided
See all 1 projectsiBlue Consulting is a digital product development company, renowned for crafting insurance solutions. Their reviews reflect a 100% success rate in delivering projects on time with agile methodologies, emphasizing strong project management and strategic alignment with client needs. Most reviewers highlight the company's professionalism and effective communication, with no areas for improvement noted.
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$10,000+$50 - $99 / hr50 - 249Cary, NC
Services provided
See all 9 projectsIntelligaia, a company specializing in Enterprise Application Modernization, excels in UX and application design and development. Reviews highlight their ability to combine top-tier design with knowledgeable technical expertise, achieving outcomes like improved user accomplishment rates and higher retention. Their client feedback is overwhelmingly positive, with a strong emphasis on accountability and effective project management.
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$25,000+Undisclosed50 - 249Seattle, WA
Services provided
See all 1 projectsBlink UX is a user experience and interface design agency renowned for its comprehensive research and usability solutions, particularly for complex projects. Their reviews highlight a 100% satisfaction rate, with clients praising their ability to handle intricate projects and provide responsive support. The YMCA of Greater Seattle noted a 26% increase in new users and a 25% rise in session engagement post-project, underscoring Blink UX's impactful contributions.
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$25,000+$100 - $149 / hr2 - 9Hilversum, Netherlands
Services provided
See all 6 projectsVolare Software is an adept software development company specializing in creating custom web and mobile applications. The firm consistently receives positive feedback for its transparency, quality of work, and effective communication, with approximately 100% of reviews praising these aspects. Clients particularly commend Volare Software's adaptability and problem-solving skills, with over 80% noting their impressive teamwork and ability to provide valuable insights and innovative solutions.
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$25,000+$150 - $199 / hr10 - 49
Services provided
See all 15 projectsSmartLogic is a software modernization company specializing in Enterprise Application Modernization, particularly in refreshing legacy systems and enhancing user interfaces. Reviews highlight their strong cultural fit, responsiveness, and comprehensive understanding of client needs, with 100% positive feedback emphasizing their excellent project management and ability to deliver high-quality designs on time.
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$25,000+$50 - $99 / hr10 - 49Yerevan, Armenia
Services provided
See all 1 projectsThe Project Drivers is a web development company that specializes in website redesign and launch services. They are praised for their dedication and professionalism, with 100% of reviewers highlighting their commitment to meeting project goals, even working late to resolve timing issues. The team is noted for transparency and strong communication, making them a reliable partner.
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$50,000+$100 - $149 / hr10,000+Austin, TX
Services provided
See all 3 projectsSoftServe is a software development company specializing in custom software solutions, healthcare technology applications, and innovative consulting. Reviews highlight its strong technical expertise, particularly in using the Microsoft tech stack and mobile technology. SoftServe receives overwhelmingly positive feedback, with 100% of reviewers praising its project management skills, communication abilities, and innovative approach. Clients specifically appreciate the company's human-centric design philosophy and structured training and development programs for employees.
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$50,000+$200 - $300 / hr10 - 49Portsmouth, NH
Services provided
See all 9 projectsProximity Lab specializes in Enterprise Application Modernization, focusing on product strategy and digital transformation. The reviews highlight their high-quality vision and strategy, exceptional project management, and ethical approach, with 100% positive feedback. Clients commend their ability to adapt and deeply listen, although some suggest faster iteration could enhance their service delivery.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
Services provided
See all 13 projectsFINGO Software House is a technology company specializing in Enterprise Application Modernization and digital transformation. Their clients consistently praise them for their dedication, reliability, and responsiveness in projects involving software and systems modernization. Notably, 100% of reviewers commend their seamless integration with existing teams and processes, highlighting their effective communication and excellent culture fit.
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$5,000+$25 - $49 / hr50 - 249Jodhpur, India
Services provided
See all 1 projectsLp Cloud Lab Pvt. Ltd. is a proficient company specializing in Enterprise Application Modernization and Software Modernization services. They effectively modernized a legacy Warehouse Management System, demonstrating a strong commitment to project success and rapid response to change requests within 24 hours. Client feedback is overwhelmingly positive, highlighting excellent communication and a deep understanding of client needs.
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$10,000+$50 - $99 / hr2 - 9Warszawa, Poland
Services provided
See all 2 projectsKosmosKod is a web development company specializing in creating customized online booking systems. Reviews highlight their exceptional project management, clear communication, and ability to deliver high-quality, feature-rich software. Approximately 100% of the feedback is positive, with a focus on their efficiency and direct communication. The main area for improvement noted is their capacity to handle more projects due to their small team size.
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$25,000+$150 - $199 / hr50 - 249Québec, Canada
Services provided
See all 1 projectsINGENO is a software development company specializing in creating efficient and user-friendly web applications. Reviews highlight their ability to quickly deliver impactful solutions, with 100% of feedback noting their supportive and collaborative approach. Clients commend INGENO for their commitment to partnership, although one review suggests room for improvement in project management continuity.
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$25,000+$50 - $99 / hr50 - 249Amman, Jordan
Services provided
See all 4 projectsSitech is a versatile technology company offering cloud infrastructure solutions, SaaS development, and fintech platform creation. The company consistently receives positive feedback for its technical expertise, adaptability, and proactive communication. Approximately 100% of reviews highlight their effective project management and dedication to client success, with no notable areas for improvement mentioned.
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$10,000+$50 - $99 / hr2 - 9
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See all 12 projectsKSB Technologies specializes in Enterprise Application Modernization, focusing on enhancing and expanding features for clients. Reviews highlight their autonomy and adherence to development standards, with 100% positive feedback noting their strategic alignment and efficiency in delivering software solutions. The company excels in application modernization, utilizing modern techniques such as CI/CD and Azure Build Pipelines.
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$5,000+$100 - $149 / hr10 - 49New York, NY
Services provided
See all 5 projectsNIFTIT is a SharePoint development company known for creating user-friendly intranet solutions tailored to diverse organizational needs, including document management, workflow automation, and UI/UX enhancements. The reviews highlight their cost-effectiveness, with nearly 100% of clients praising their adaptability, project management, and ability to implement strategic solutions promptly. Their team is commended for listening to client needs, providing innovative solutions, and maintaining excellent communication throughout projects.
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$50,000+$50 - $99 / hr250 - 999Kraków, Poland
Services provided
See all 4 projectsj-labs software specialists is a proficient software development company offering expertise in Java, Angular, AWS Cloud, and other modern technologies. Clients consistently commend their high-quality deliverables, strong communication skills, and ability to integrate seamlessly into existing teams. With over 90% positive feedback, they are valued for their professional developers and reasonable pricing.
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$10,000+$50 - $99 / hr10 - 49Surrey, Canada
Services provided
See all 4 projectsOrange Oranges Technologies Ltd is a versatile digital solutions provider specializing in web development, social media management, and digital marketing services. Reviews indicate a high level of satisfaction, with 100% of clients praising their professionalism, effective communication, and responsiveness. A significant portion of clients appreciates their cost-effectiveness and ability to tailor solutions to meet specific business needs.
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$10,000+$25 - $49 / hr50 - 249Karachi, Pakistan
Services provided
See all 10 projectsTechwards is a versatile software development company specializing in backend development, AI integration, and scalable infrastructure solutions. Reviews from various clients highlight their professionalism, timely delivery, and adaptability, with 100% of reviewers praising their technical expertise and effective project management. Clients commend Techwards for aligning with company values and maintaining clear communication, with no significant areas for improvement identified.
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Undisclosed$25 - $49 / hr50 - 249Zagreb, Croatia
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See all 13 projectsSerengeti is a software development company specializing in providing staff augmentation services, particularly in the fields of Java development and integration with financial and public sector systems. Their clients consistently praise their flexibility, quick adaptation, and professional approach, with over 90% of reviewers highlighting their responsiveness and integration capabilities. While a few suggest keeping up with agile trends, the overall feedback is overwhelmingly positive, with many recommending Serengeti for their quality and reliability.
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$5,000+$50 - $99 / hr50 - 249Łódź, Poland
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See all 9 projectsInwedo is a software development company known for its expertise in creating customized web and mobile applications. The company receives overwhelmingly positive feedback, with reviewers praising their technical capabilities, project management skills, and responsiveness. Approximately 95% of reviewers highlight their flexibility and commitment to meeting project goals. Inwedo is consistently recognized for its collaborative approach and ability to deliver quality solutions within budget and time constraints.
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UndisclosedUndisclosed50 - 249Norfolk, VA
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See all 2 projectsMartianCraft is a software development company specializing in app design and development, particularly for iOS and Android platforms. Reviews indicate a strong reputation for responsiveness, expertise in coding, and adherence to project timelines. Notably, 100% of reviewers praised their alignment with company values and strategic insights, with no areas for improvement highlighted by clients.
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Undisclosed$150 - $199 / hr50 - 249Austin, TX
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See all 2 projectsHeadspring is a software development company specializing in modernizing legacy systems and developing web-based platforms and enterprise solutions. Their reviews highlight a nearly unanimous positive sentiment, emphasizing exceptional project management, effective communication, and strong alignment with client goals. Approximately 100% of reviewers commend their professionalism and dedication, with no significant areas of improvement noted.
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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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$1,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 4 projectsNetex Cloud Technologies LLC is a versatile IT services provider, specializing in process automation, HRM system development, and IT and back-office outsourcing solutions. Reviews reveal a client-oriented approach, with 100% of reviewers praising their proactive support and high-quality services. Despite minor invoicing concerns, clients consistently commend their skilled team and effective project management.
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$25,000+$150 - $199 / hr10 - 49Oakleigh South, Australia
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See all 7 projectsEnvision IT is an IT services company that offers solutions such as website development, API integration, ERP system implementation, and complex algorithm development. The company consistently receives positive feedback, with clients praising its project management, timely delivery, and ability to work independently and efficiently. Approximately 100% of reviewers highlight Envision IT's capacity to simplify complex problems and deliver projects on schedule and within budget.
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$25,000+Undisclosed50 - 249Böblingen, Germany
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See all 4 projectsSoftware Aspekte is a versatile software development company specializing in IT change management, CRM implementation, and embedded software development. The company is noted for its high-quality deliverables and strong alignment with client needs, with 100% of reviews highlighting their cost-effectiveness and skilled team. Positive feedback underscores their reliable project management and excellent developer skills.
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$10,000+$50 - $99 / hr10 - 49Prague, Czech Republic
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See all 5 projectsSWEHQ is a software development company known for its expertise in custom web applications, user interfaces, and backend solutions, utilizing technologies like Python, Angular, and MongoDB. Across diverse projects, 100% of reviewers praised their professionalism, attention to detail, and innovative approach. Their commitment to understanding client needs and delivering quality work has consistently exceeded expectations, earning them a reputation for precision and effective communication.
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List of the Top 15 Legacy Modernization Services
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$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 - 9,999Kraków, Poland
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 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 -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
37.5/40.019/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.2/40.017.2/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
45% Enterprise App Modernization55% 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 -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 / hr50 - 249Gliwice, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% 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
38.9/40.019.4/20 Reviews10/10 Clients & Experience9.5/10 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
15% Enterprise App Modernization85% 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 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
11% Enterprise App Modernization89% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
36.4/40.016.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Enterprise App Modernization70% 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 -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
32.1/40.017.4/20 Reviews9.8/10 Clients & Experience4.8/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
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+$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 -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
35.3/40.017/20 Reviews10/10 Clients & Experience8.3/10 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 -
$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 -
$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
Ability to deliver
37.6/40.018.6/20 Reviews9.6/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
34.9/40.017.8/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.017.8/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Palo Alto, CA
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
36.7/40.017/20 Reviews10/10 Clients & Experience9.7/10 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.