Top Application Modernization Services
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$5,000+$100 - $149 / hr2 - 9Gothenburg, Sweden
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See all 3 projectseComero AB is an e-commerce solution provider specializing in Magento platform development and consulting services. The reviews highlight their expertise, commitment to client success, and professional project management. Approximately 100% of reviewers praised the company's dedication, while 33% noted enhanced control over their e-commerce platforms. Some clients mention the complexity of Magento, suggesting a need for more straightforward guidelines.
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$1,000+$50 - $99 / hr2 - 9
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See all 3 projectsBytewise is a web development company specializing in website design, SEO optimization, and digital presence enhancement. Across their reviews, 100% of clients praised their excellent communication and project management, with notable success in delivering responsive, high-performing websites. Positive feedback highlighted their ability to exceed expectations and tailor solutions to clients' unique needs, although some suggested enhancements in project tracking and post-launch support.
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$5,000+Undisclosed10 - 49Greenville, SC
Services provided
See all 1 projectsOrange Bees is a database system development company known for their ability to build open-source solutions and facilitate third-party integrations. Overall feedback is overwhelmingly positive, with 100% of reviewers praising their flexibility, thoroughness, and regional adaptability. While some suggested improvements in role clarity, the company's project management and communication have been described as phenomenal, especially in recent months.
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$5,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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See all 1 projectsMG, a software integration company, is noted for its expertise in developing integration solutions between ERP and WMS systems. The feedback is overwhelmingly positive, with 100% of reviewers praising their timely delivery and error-free execution. Clients appreciate MG's know-how and cultural fit, highlighting their impressive project management skills.
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$1,000+< $25 / hr2 - 9Luhans'k, Ukraine
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See all 1 projectsWonderkid Studio is a web development company that specializes in building custom websites from scratch, offering programming and design improvements. Reviews highlight their competence and reliability, with approximately 100% of reviewers mentioning their effective problem-solving and excellent post-launch support. Clients note some delays but appreciate the clear communication and collaboration with the CEO.
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$5,000+$100 - $149 / hr10 - 49Neuilly-sur-Seine, France
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Userware is an Enterprise App Modernization company. The company is located in Neuilly-sur-Seine, France. Their services include Enterprise App Modernization and Custom Software Development.
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$25,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 1 projectsSourceX is a software development company specializing in telecommunications projects, particularly in BSS and OSS stack development. The company demonstrated significant expertise in telecommunications, which was crucial for the client's selection. All feedback was positive, highlighting SourceX's timely, flexible work and impressive project outcomes, with 100% of reviewers commending their expertise and collaboration.
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$50,000+Undisclosed10 - 49Rajkot, India
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See all 2 projectsTark Technologies is a company specializing in Enterprise Application Modernization, offering comprehensive software modernization services. Their reviews are overwhelmingly positive, with clients praising their ability to modernize legacy systems effectively, their reliable 24/7 support, and their collaborative project management approach. Approximately 90% of feedback highlights their professionalism and capacity for enhancing product features significantly.
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$25,000+$50 - $99 / hr10 - 49Chennai, India
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See all 1 projectsNYL Technology is a versatile tech firm offering comprehensive AI and generative AI solutions, specializing in maritime and eCommerce sectors. With a strong emphasis on agile, cost-effective development, they maintain a 90%+ on-time project delivery rate. Their expertise in custom AI models and innovative solutions has been praised, with 95% of issues addressed effectively.
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$1,000+$50 - $99 / hr10 - 49Scottsdale, AZ
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See all 1 projectsETT is a technology solutions company specializing in creating custom applications and interactive digital experiences. The company consistently received perfect client scores, with 100% of reviewers highlighting their effective communication and timely project delivery. Feedback emphasized ETT's dedication to project enhancement and seamless collaboration with client teams.
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$5,000+Undisclosed50 - 249Jaipur, India
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See all 1 projectsAppbay Technologies Private Limited is a technology consultancy specializing in digital transformation solutions, particularly in Appian BPM for financial services. Reviewers commend their expertise, with 100% praising their project management, responsiveness, and ability to improve operational efficiency by 30–40%. Clients value their proactive approach and alignment with company values, with no major areas for improvement noted.
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$5,000+Undisclosed2 - 9Cardiff, Wales
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See all 8 projectscodeBeam is a software development company specializing in custom solutions, mobile app development, and API integrations. Reviews reveal a 100% positive sentiment, highlighting the company's professionalism, technical proficiency, and excellent project management. Many clients (83%) appreciate their proactive approach and customer-focused service, with no significant areas for improvement noted across the feedback.
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$1,000+< $25 / hr10 - 49Indore, India
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See all 1 projectsCorusview IT Services Pvt. Ltd. is a versatile company offering services in SEO, web development, software development, and mobile app development. Feedback indicates a strong commitment to work and deliverables, with excellent project management; 100% of reviewers commend their dedication and effectiveness, and none noted areas for improvement.
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$1,000+< $25 / hr10 - 49Vadodara, India
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See all 1 projectsiTechnoSol Inc. is a technology company specializing in web development, CMS migration, and digital marketing, including SEO and social media campaigns. The reviews highlight their proficiency in meeting deadlines, delivering budget-friendly solutions, and adapting to new technologies. Clients appreciate their innovative approaches, with 100% of reviews expressing satisfaction, although a desire for more proactive suggestions was noted.
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$10,000+< $25 / hr50 - 249Surat, India
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See all 1 projectsOptimumBrew Technology is a mobile app development company skilled in creating versatile applications for both iOS and Android platforms, as well as web-based services. Reviews consistently highlight their effective communication and project management, with 100% positive feedback on their customer service and technical recommendations. Clients particularly appreciate their responsiveness and the stability of their app solutions.
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$50,000+$150 - $199 / hr10 - 49
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See all 4 projectsRocket Lab is a versatile technology solutions provider, offering services ranging from app development to UX/UI design and web development. Reviews highlight their responsiveness and project management skills, with 100% of clients praising their flexibility and quality of work. Clients commend Rocket Lab's ability to deliver complex projects efficiently, often exceeding expectations while maintaining a competitive pricing structure.
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$5,000+$50 - $99 / hr10 - 49Bratislava, Slovakia
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See all 4 projectsYounics is a software development company specializing in cross-platform development and agile solutions. Reviews indicate a strong alignment with client values, timely project delivery, and professional yet friendly communication. Approximately 100% of reviewers praised their project management and cultural fit, with no significant areas for improvement mentioned.
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Undisclosed< $25 / hr50 - 249Sandton, South Africa
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See all 1 projectsKB Consulting is a bespoke web application development company specializing in advanced systems with Business Intelligence reporting. They received 100% positive feedback for their efficient project management and remarkable turnaround time, with clients highlighting cost-effectiveness as a significant benefit. All reviewers indicated satisfaction with no areas for improvement mentioned.
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$1,000+< $25 / hr10 - 49Indore, India
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See all 3 projectsInfinity Genesis Techso Pvt. Ltd. is a versatile web development and IT solutions company, praised for its reliability, technical capabilities, and efficiency. With 100% positive feedback, clients appreciate their timely delivery and responsiveness to change requests. The company demonstrates excellent value for cost and aligns well with clients' budgetary and cultural expectations.
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$10,000+$150 - $199 / hr2 - 9
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See all 2 projectsCool Fire Inc is a versatile technology solutions provider, specializing in web development and infrastructure management. Their services include website creation, app development, and scalable technology infrastructure. The overall feedback highlights their responsiveness and innovative problem-solving skills, with 100% of reviewers mentioning their alignment of company values and impressive project management. Clients report successful outcomes, with one noting a doubling of business income facilitated by their support.
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UndisclosedUndisclosed10 - 49Alpharetta, GA
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See all 1 projectsAbel Solutions is a software development company specializing in creating workflow management solutions, notably integrating with Microsoft Dynamics CRM. Reviews highlight their strong project management and knowledgeable developers, with 100% of feedback expressing satisfaction and noting the delivery of solutions that met or exceeded expectations. Abel Solutions consistently impressed clients with their ability to meet defined milestones.
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$5,000+Undisclosed2 - 9Plovdiv, Bulgaria
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See all 2 projectsSIX MS is an Enterprise Application Modernization company specializing in ERP solutions and IT Modernization. They are praised for their cost-effective services, rapid implementation, and responsive project management. Approximately 80% of reviewers commend their pricing and speed, while 20% suggest improvements in customizing system functionalities to better meet client needs.
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Undisclosed$50 - $99 / hr50 - 249Wrocław, Poland
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See all 2 projectsSofixit is a software development company specializing in mobile app development and software engineering outsourcing, with a focus on delivering complex projects like big data platforms. Reviews reveal a 100% satisfaction rate, highlighting their professionalism, responsiveness, and ability to deliver projects on time. Clients appreciate their competent engineering team and effective communication skills.
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$10,000+$50 - $99 / hr2 - 9Burlington, Canada
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See all 4 projectsSyS Creations is an IT consulting company specializing in healthcare IT development, IT infrastructure, and robotic process automation. The reviews indicate a high level of client satisfaction, with 100% of the feedback highlighting their reliable project management and problem-solving skills. Clients emphasize SyS Creations' efficiency, professionalism, and adaptability, with no significant areas for improvement mentioned across the testimonials.
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$10,000+$50 - $99 / hr50 - 249Kyiv, Ukraine
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See all 2 projectsConfidence Technology is a company specializing in website programming and e-commerce solutions. Their reviews highlight a commitment to innovation, attention to detail, and efficient project management. Clients noted significant improvements in site performance and user engagement. While highly satisfied overall, some clients suggested more frequent progress updates could enhance communication. Approximately 100% of the reviews reflect positive feedback on their services and outcomes.
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$1,000+< $25 / hr10 - 49Loveland, CO
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See all 3 projectsLinkingLogics.com is a software solutions provider specializing in database and talent management systems for recruiting and staffing firms. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their exceptional project management and customer service. Clients commend their cost-effective solutions, responsiveness, and ability to customize software to meet specific needs, noting their software enhances efficiency and supports business growth.
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$25,000+$100 - $149 / hr10 - 49Hermosillo, Mexico
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See all 1 projectsFifty Seven Pounds is a technology company specializing in website management and SEO content strategy. The reviews reflect a 100% positive sentiment, highlighting their adaptability, effective project management, and commitment to client success. Notably, 100% of reviewers appreciated their ability to align with company culture and handle project scope changes efficiently, ensuring timely and valuable project delivery.
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$1,000+< $25 / hr10 - 49Mumbai, India
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See all 1 projectsEnfini Labs Tech Consultant is a technology consultancy specializing in developing management software and databases, evidenced by their work with a rheumatology clinic. Their reviews reflect a 100% positive sentiment, highlighting effective project management and prompt delivery. Reviewers consistently praised their innovative approach and adaptability to new challenges.
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$1,000+$50 - $99 / hr10 - 49
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See all 1 projectsziphio is a mobile application development company that excels in creating apps for both Android and iOS platforms. Overall feedback from reviewers is positive, highlighting their punctuality and ability to meet expectations. While some guidance was necessary, ziphio's team demonstrated adaptability and commitment by addressing post-project glitches efficiently. The absence of suggested improvements further underscores their competence.
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UndisclosedUndisclosed10 - 49Omaha, NE
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See all 1 projectsVolano Software is a software development company specializing in creating mobile applications and web-based platforms for B2B clients. With an ongoing partnership since 2015, they have consistently demonstrated reliability and transparency. Clients appreciate their honest communication and significant contribution to reducing operational stress. Feedback indicates high satisfaction, with 100% of reviewers highlighting their integrity and effective project management.
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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.