Top Application Modernization Services
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$5,000+$100 - $149 / hr2 - 9Northampton, England
Services provided
See all 4 projectsFull Metal Software is a software development company specializing in bespoke software solutions, data migration, and system support for a variety of industries, including IT, legal, and healthcare. With an impressive 100% positive feedback across all reviews, clients commend their effective communication, timely project delivery, and seamless integration with existing systems. Their ability to ease clients through complex projects is frequently highlighted.
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$10,000+$100 - $149 / hr10 - 49Berlin, Germany
Services provided
See all 3 projectsBananapie GmbH is a Flutter development company praised for its exceptional communication and teamwork. The reviews consistently highlight their reliable delivery of high-quality features and effective remote collaboration. With 100% positive feedback, clients appreciate their ability to integrate seamlessly into existing teams and their openness to innovative problem-solving approaches.
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$10,000+$100 - $149 / hr2 - 9Dublin, Ireland
Services provided
See all 4 projectsAccelerator Team is a versatile development company specializing in IT infrastructure, platform development, and integration of modern technologies like VR and AI. They have received overwhelmingly positive feedback, with 100% of reviewers praising their communication and project management skills. Clients commend their ability to deliver tailored solutions efficiently, highlighting their competitive pricing and proactive approach to understanding clients' needs.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsQualitas IT LLC is a versatile software development company specializing in HR management tools and website development. Across reviews, clients commend their project management, with 100% praising their timeliness and quality. Notable highlights include seamless communication and creative input, proving integral to client successes. While some suggest expanding their technology portfolio, overall satisfaction remains high.
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$25,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsITendo is a development company specializing in creating digital platforms and marketplace solutions. Clients praise their innovative approach, understanding of industry needs, and commitment to delivering high-quality work on time. They have received an overwhelming 100% positive feedback, with reviewers highlighting impressive project management skills and effective use of modern tools such as Jira, Slack, and Figma for efficient communication and tracking.
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$5,000+$25 - $49 / hr50 - 249
Services provided
See all 11 projectsLambda Team is a versatile technology company specializing in web application development, cloud platform solutions, and API development. Across various reviews, 100% of clients commend their high-quality deliverables and project management skills. Common themes include their adaptability, expertise in modern technologies, and ability to meet deadlines. Some reviews suggest improving initial project analysis and expanding technical capabilities for broader technology coverage.
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$25,000+$25 - $49 / hr10 - 49Chicago, IL
Services provided
See all 9 projectsTwinCore offers services such as web-based software development, design, support, and enhancement, with a strong focus on Application Modernization and IT Modernization. Feedback consistently highlights their on-time, on-budget delivery, exemplary service, and impressive knowledge and experience, making them a reliable partner for digital transformation projects.
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$10,000+< $25 / hr50 - 249Noida, India
Services provided
See all 8 projectsBigOhTech is a software development company that provides services such as exchange software development, module building, website and mobile app development, and data migration. Across their reviews, 75% note strong project management and timely delivery, while 50% highlight cost-effectiveness. However, there is mention of dependency on a few individuals, which could be an area for improvement.
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Undisclosed$25 - $49 / hr50 - 249Yerevan, Armenia
Services provided
See all 3 projectsInomma is a mobile and web development company known for its comprehensive services, including app design, backend, and frontend development. Reviews indicate that approximately 100% of clients commend their professionalism, attention to detail, and adherence to timelines and budgets. Their result-oriented approach and clear communication consistently meet or exceed client expectations, with no significant areas for improvement noted by reviewers.
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$10,000+$50 - $99 / hr2 - 905, Andorra
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See all 1 projectsROCHEGRUP SOFTWARES is a custom software development company specializing in web application development. Feedback from their clients is overwhelmingly positive, with reviewers praising their robust solutions and effective project management. Notably, 100% of the feedback highlights their excellent communication and ability to meet deadlines. No areas for improvement were mentioned, indicating high client satisfaction.
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$25,000+$100 - $149 / hr10 - 49Troy, NY
Services provided
See all 2 projectsGavant Software, Inc. is a software development company known for creating custom solutions tailored to industry-specific needs. Reviews highlight their expertise in developing complex inventory and management systems, with a focus on intuitive design and seamless integration. Clients praise their dedication and partnership approach, with 100% of reviewers noting their ability to enhance operational efficiency and exceed project expectations.
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$25,000+$150 - $199 / hr2 - 9Orlando, FL
Services provided
See all 3 projectsGrata Software is a versatile software development company specializing in IT consulting, custom software development, and project management. The company maintains a strong reputation, with approximately 90% positive feedback emphasizing their responsiveness, technical expertise, and quality of work. Clients appreciate their ability to handle diverse projects and enhance system reliability, though some suggest improvements in project visibility and team availability.
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$10,000+$25 - $49 / hr10 - 49Praha, Czech Republic
Services provided
See all 8 projectsKOALA42 is a software development company specializing in web and mobile applications, system integrations, and cloud-based solutions. Reviewers frequently commend their professionalism, agility, and timely delivery, with 100% of the feedback highlighting their exceptional communication and user-focused approach. Clients consistently express satisfaction with KOALA42's ability to exceed expectations and meet project deadlines effectively.
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$10,000+$50 - $99 / hr10 - 49Sacramento, CA
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See all 11 projectsPrestige Development Group is a recruitment and talent acquisition company specializing in sourcing candidates for technical and senior roles across various industries. The company consistently receives positive feedback, with approximately 100% of reviewers expressing satisfaction with their professionalism, effective workflow, and ability to meet challenging hiring requirements in a timely manner. Their adaptability and commitment to understanding client needs are frequently highlighted as key strengths.
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$5,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
Services provided
See all 11 projectsSprinterra is a versatile software development company offering services in web application development, cloud-based system architecture, and custom CRM systems. Reviewers consistently commend Sprinterra for their project management, communication, and ability to deliver high-quality solutions on time, even under challenging circumstances. Notably, 100% of reviewers mentioned positive experiences, with frequent praise for their technical expertise, reliability, and adaptability, demonstrating their effectiveness in meeting diverse client needs.
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$50,000+Undisclosed1,000 - 9,999Hyderabad, India
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See all 6 projectsCigniti Technologies Inc. is a company specializing in independent quality engineering and testing services, including functional, automation, regression, and performance testing. With a strong focus on delivering high-quality services, they have consistently impressed clients with their technical capabilities and adherence to project timelines. Approximately 95% of clients note their impressive commitment to quality and effective collaboration, although there's room for improvement in development services.
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$5,000+$100 - $149 / hr10 - 49Toronto, Canada
Services provided
See all 4 projectsCreme Digital is a versatile web development company, specializing in app development, branding, UX/UI design, and MVP platform creation. Across the reviews, 75% of clients highlight their efficient project management and design expertise, although some suggest they could enhance their strategic recommendations for long-term projects. Overall, Creme Digital is praised for their responsiveness, value for cost, and collaborative approach.
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$5,000+$100 - $149 / hr10 - 49Palmerston North, New Zealand
Services provided
See all 2 projectsNodero is a software development company specializing in building complex, customized software solutions across various industries. The reviews indicate a strong emphasis on effective project management, high-quality deliverables, and excellent interpersonal communication, with around 90% of reviewers highlighting the team's professionalism and adaptability. However, a few clients have noted a desire for increased transparency in project progress updates.
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$5,000+< $25 / hr50 - 249Karachi, Pakistan
Services provided
See all 4 projectsHexalyze Consulting Services specializes in Enterprise Application Modernization, offering comprehensive ERP implementation, training, and support. With 100% positive feedback, clients commend their professionalism, effective project management, and timely communication. Notably, 100% of reviewers highlight their expertise in software services, while 100% suggest expanding their product offerings to include cloud and cybersecurity solutions for a holistic digital transformation.
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$5,000+$25 - $49 / hr10 - 49Chennai, India
Services provided
See all 8 projectsSiam Computing is a versatile technology services company specializing in web development, software development, and custom solutions, as highlighted by their engagement with diverse sectors, including healthcare, education, and real estate. The reviews demonstrate an 80% positive sentiment, with clients appreciating their professional project management and commitment to deadlines. Approximately 60% of reviewers commend Siam Computing's collaborative approach and technical expertise, indicating their capability to align with client values and project needs. Potential areas for improvement include enhancing resource transparency and refining communication processes.
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$25,000+$25 - $49 / hr10 - 49Burgas, Bulgaria
Services provided
See all 3 projects42px is a software development company specializing in front-end development with expertise in React and Typescript. The company consistently meets client expectations, with 100% of reviewers noting successful project outcomes such as timely delivery and bug-free implementations. Clients praise their agile project management approach, highlighting seamless integration with existing teams and effective communication throughout the project lifecycle.
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$25,000+$25 - $49 / hr250 - 999
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See all 1 projectsEvolve Blue is a web development and SEO company known for creating mobile-responsive websites and managing search engine optimization to improve client visibility. According to reviews, 100% of clients report increased business and satisfaction with their services, highlighting the team's patience, transparency, and effective communication. The company fosters ongoing relationships and delivers impactful results, with no reported areas for improvement.
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$10,000+Undisclosed1,000 - 9,999Princeton, NJ
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See all 1 projectsNeurealm is a technology services company specializing in Salesforce upgrades and enhancements. Reviews indicate 100% positive feedback, highlighting their technical expertise and professional conduct. Clients are impressed by their ability to deliver projects on time and within budget, with no areas for improvement noted.
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$50,000+$100 - $149 / hr10 - 49Philadelphia, PA
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See all 9 projectsOpenForge is a mobile app development company specializing in hybrid app solutions using platforms like Ionic. Across numerous client reviews, OpenForge is consistently praised for their expertise, communication, and project management skills, with over 90% of reviews highlighting their responsiveness and ability to meet deadlines. Clients frequently commend their collaborative approach, thoroughness in testing, and commitment to delivering high-quality, functional products.
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 5 projectsViitorCloud is a versatile technology service provider specializing in custom software development, web development, and branding services. The company is recognized for its professionalism, adaptability, and responsiveness, with 100% of reviewers commending their effective communication and timely project delivery. Areas for improvement include upfront cost communication and proactive problem-solving. Overall, ViitorCloud is praised for its technical expertise and human values.
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$5,000+$25 - $49 / hr10 - 49Ho Chi Minh City, Vietnam
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See all 12 projectsSosene Software is a versatile software development company specializing in custom solutions for education, e-commerce, and administrative applications. Their reviews reflect a strong commitment to customer satisfaction, with 100% of clients praising their proactive communication and timely delivery. While some reviewers suggest improvements in communication from developers, 90% commend their professional management and technical expertise.
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$1,000+$100 - $149 / hr2 - 9Memphis, TN
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See all 1 projectsWintellisys, Inc. is an IT services company specializing in managing IT infrastructure and cloud solutions. The reviews highlight their ability to deliver enterprise-class services, with 100% positive feedback on their dependable project management and cost-effective solutions. Clients appreciate their focus on essential services without upselling unnecessary products.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsFlaminTech LLP is a web and application development company specializing in custom eCommerce solutions. Their client feedback is overwhelmingly positive, with reviewers appreciating their timely delivery and user-friendly UI. Notably, 100% of reviewers mentioned the outstanding quality of their deliverables, highlighting a commitment to excellence and customer satisfaction.
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$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 10 projectsLogicbric is a software development company specializing in app and mobile development, with a strong focus on creating scalable, cloud-native solutions and enhancing user experience through intuitive design. Their reviews reflect an overwhelmingly positive sentiment, with 100% of clients praising their adaptability, transparency, and effective communication. Clients emphasize Logicbric's ability to deliver projects on time and its exceptional skill in backend development and project management.
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$5,000+$25 - $49 / hr50 - 249The Woodlands, TX
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See all 5 projectsWebCreek is a versatile software development company offering expertise in branding, web development, and mobile app solutions. According to reviews, 100% of clients commend their effective project management and technical quality, often highlighting their customer-centric approach and adherence to deadlines. Additionally, 75% of reviewers emphasize their adaptability and responsiveness to feedback, ensuring project success and client satisfaction.
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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.