Top Application Modernization Services
-
$5,000+$50 - $99 / hr50 - 249Warszawa, Poland
Services provided
See all 3 projectsSavangard is a technology solutions company specializing in identity and access management, electronic workflow systems, and payment infrastructure. Overall, they receive positive feedback, with clients praising their technical expertise, communication, and project management. Approximately 100% of reviewers highlight their professional approach and timely delivery, with no significant areas for improvement mentioned.
-
$10,000+$25 - $49 / hr2 - 9
Services provided
See all 2 projectsBits Nexus is a software development company specializing in creating and deploying complex applications with robust infrastructure to support multiple users. They receive overwhelmingly positive feedback, with clients praising their proactive improvements, timely delivery, and knowledgeable leadership. Approximately 100% of the reviewers highlight their effective project management and the high quality of their deliverables, making them a reliable partner for technology-driven projects.
-
$50,000+$50 - $99 / hr50 - 249T'bilisi, Georgia
Services provided
See all 2 projectsOptime is a software development company specializing in video, streaming, and media processing solutions. The company has consistently received positive feedback from clients, with reviews highlighting their technical expertise in low-latency video streaming and media codec applications. Approximately 100% of the feedback underscores Optime's adept project management and effective collaboration with clients, demonstrating their ability to meet and exceed performance and quality objectives.
-
$10,000+$25 - $49 / hr50 - 249New Delhi, India
Services provided
See all 5 projectsNablasol is a custom software development company known for providing tailored solutions such as integrations and automation tools. Across their reviews, they receive positive feedback for responsiveness and team cohesion, with approximately 100% of reviewers appreciating their alignment with company values and cultural fit. However, some noted minor project delays and initial resource allocation challenges.
-
$5,000+$25 - $49 / hr50 - 249Montevideo, Uruguay
Services provided
See all 8 projectsGeneXus Consulting is a technology and software development firm specializing in custom application and system solutions across various industries. Feedback from clients highlights their proficiency in project management and adaptability to client needs, with about 83% of reviews noting effective collaboration. While most testimonials are positive, 33% mention areas for improvement, such as communication and bug testing.
-
$25,000+$50 - $99 / hr10 - 49Poznań, Poland
Services provided
See all 7 projectsThe BitByBit Company is a versatile software development firm specializing in mobile and web application solutions for a range of fields, including academic research, civic engagement, and healthcare. Reviewers consistently highlight the company's rapid delivery, meticulous attention to client requirements, and exceptional project management, with more than 80% praising their problem-solving and communication skills. Many clients appreciate their ability to transform complex concepts into practical applications efficiently.
-
$5,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsElanine Creatives is a web development firm praised for its strategic implementation and exceptional project management skills. All reviews reflect positive feedback, highlighting their efficiency and partnership-oriented approach. Impressively, 100% of reviewers commend their proactive collaboration and dedication, resulting in enhanced community engagement and operational efficiency.
-
$1,000+$25 - $49 / hr50 - 249Shimla, India
Services provided
See all 5 projectsSummerhill Technologies specializes in Enterprise Application Modernization, focusing on modernizing and scaling platform architectures. The company is praised for its professional approach, strong project management, and effective communication, with 100% of reviewers highlighting their detail-oriented nature and ability to deliver practical solutions on time. Their collaborative approach is noted for seamlessly integrating with client teams.
-
$1,000+$50 - $99 / hr50 - 249Warszawa, Poland
Services provided
See all 9 projectsSoftacom is a company specializing in Enterprise Application Modernization, particularly in upgrading legacy systems and ensuring software compatibility with modern operating systems. Client reviews highlight their excellent project management and strong communication practices, with 100% of reviews expressing satisfaction with their people and processes, and no areas for improvement identified.
-
$25,000+$150 - $199 / hr10 - 49St. Louis, MO
Services provided
See all 1 projectsAlliance Systems is a web development company renowned for its sophisticated and flexible solutions. Reviews highlight their exceptional project management skills and ability to adapt to client needs, with 100% of feedback being positive. Clients praise their ability to enhance sales significantly and appreciate their fair pricing and organized approach.
-
$10,000+$25 - $49 / hr10 - 49Varna, Bulgaria
Services provided
See all 2 projectsCode Comrades Ltd is a software development company specializing in creating engaging digital experiences through strategic design and development. Their efforts have led to improved website performance and streamlined content management, with 100% of reviewers highlighting their professionalism and communication. However, initial technical leadership issues were noted but subsequently corrected to enhance project efficiency.
-
$10,000+$25 - $49 / hr50 - 249Coimbatore, India
Services provided
See all 6 projectsTranz Technologies is a versatile IT service provider offering mobile app development, digital marketing, and ERP solutions. Across reviews, they are noted for effective project management and understanding client needs, with approximately 95% positive feedback highlighting these qualities. Clients commend their ability to improve business processes and digital presence, though some suggest more frequent progress updates.
-
UndisclosedUndisclosed50 - 249Wrocław, Poland
Services provided
See all 4 projectsAvra Software is a proficient software development company specializing in Java, Spring, and REST technologies, among others. With a history of delivering high-quality solutions for various industries, Avra is noted for its innovative approach and adaptability, resulting in successful projects and ongoing relationships. Approximately 100% of reviewers highlight Avra’s reliability, technical expertise, and effective project management, reflecting a strong customer satisfaction rate.
-
$1,000+< $25 / hr10 - 49
Services provided
See all 7 projectsAgilsys Software Labs Pvt. Ltd. is a proficient enterprise application modernization company specializing in full-stack development, API development, and software testing automation. The company receives overwhelmingly positive feedback, with many clients highlighting their technical expertise and adaptability. Approximately 90% of reviewers commend their project management and timely delivery, while around 85% appreciate their proactive communication and commitment to client satisfaction.
-
$5,000+$25 - $49 / hr50 - 249Kakkanad, India
Services provided
See all 18 projectsSayOne Technologies is a software development company specializing in custom solutions utilizing technologies such as Python, Django, and cloud services. They are highly regarded for their scalability, timely delivery, and effective communication, with a 100% positive feedback rate for their responsiveness and quality of work. Their expertise is notably appreciated in handling complex projects with a hands-on and collaborative approach.
-
$10,000+$50 - $99 / hr10 - 49Kraków, Poland
Services provided
See all 10 projectsScore Digital is a versatile software development company specializing in custom mobile and web applications, often using technologies like React Native and Flutter. Reviews indicate a strong emphasis on communication and project management, with approximately 85% of clients praising their responsiveness and ability to meet deadlines. While some reviewers mention the high cost, 90% appreciate the value and quality delivered, with particular commendation for their end-to-end development expertise and problem-solving capabilities.
-
$25,000+$150 - $199 / hr10 - 49Schaumburg, IL
Services provided
See all 6 projectsCaptivix is a versatile software development company specializing in web application development, ERP solutions, and platform integration. Across their reviews, 100% of clients praised their technical expertise, effective communication, and timely project delivery. Clients consistently highlighted Captivix's ability to exceed expectations and their strong project management skills, with no significant areas for improvement identified.
-
$10,000+$150 - $199 / hr10 - 49Roswell, GA
Services provided
See all 7 projectsSentry IT, LLC is a company specializing in Enterprise Application Modernization and IT Modernization services. With a remarkable 100% positive feedback rate, clients commend their exceptional project management, attention to detail, and commitment to success. Approximately 60% of reviewers highlight their transformative impact on operations, leading to improved efficiency and a competitive edge.
-
$5,000+$100 - $149 / hr10 - 49Palmerston North, New Zealand
Services provided
See all 2 projectsNodero is a software development company specializing in building customized digital solutions, including platforms and MVPs, tailored to client needs. Reviewers consistently praise their interpersonal communication and project management skills, with 100% noting their professionalism and ability to deliver on time. However, some mention a desire for greater transparency in project progress.
-
$100,000+$25 - $49 / hr250 - 999Dallas, TX
Services provided
See all 2 projectsAnblicks is a versatile software development company specializing in web and mobile application development, cloud solutions, and system management. Across reviews, clients consistently praise Anblicks for their adaptability, skilled resource management, and professional communication, with 100% of reviewers highlighting their impressive project delivery and passion for client success. No significant areas for improvement were noted, underscoring their strong client satisfaction.
-
$10,000+$50 - $99 / hr10 - 49
Services provided
See all 1 projectsWBPRO LLC is an app development company known for its expertise in PHP and other database technologies, offering ongoing support and new feature development. Their project management prowess, flexibility, and industry knowledge have earned them positive feedback, with 100% of reviewers praising their accessibility and adaptability to project changes.
-
$10,000+$25 - $49 / hr10 - 49Dnipropetrovs'k, Ukraine
Services provided
See all 3 projectsUnicreo is a software development company specializing in creating custom applications and offering programming support across various technologies, including WebRTC, .NET, Node.js, and more. Overall feedback is highly positive, with clients appreciating their dedication, flexibility, and strong communication skills. Approximately 90% of reviewers highlight their technical expertise and ability to deliver projects efficiently, while some suggest improvements in reporting frequency and openness to feedback.
-
$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
Services provided
See all 9 projectsWidle is a company specializing in Enterprise Application Modernization, renowned for its precision and effective communication. With 100% positive feedback, clients commend their ability to modernize legacy systems, resulting in automated and seamless business processes. Reviewers specifically appreciate Widle's timely delivery and custom software solutions tailored to unique business needs.
-
$5,000+$25 - $49 / hr50 - 249Ahmedabad, India
Services provided
See all 15 projectsTechnoBrains Business Solutions LLP is a versatile software development company specializing in mobile app development, UI/UX design, and web development. With 100% positive feedback, clients frequently commend their excellent project management, transparency, and ability to deliver high-quality projects on time. Approximately 85% of reviewers highlight their impressive communication and professional conduct, while 70% note their adaptability and alignment with client needs.
-
$5,000+$25 - $49 / hr10 - 49Kraków, Poland
Services provided
See all 1 projectsSoftelnet is a technology solutions provider specializing in Java-based system integrations for the healthcare sector. According to customer reviews, they maintain a high level of professionalism, delivering stable, high-quality products with efficient communication and adherence to deadlines. The customer feedback is 100% positive, highlighting their flexibility and excellent documentation.
-
$1,000+< $25 / hr10 - 49
Services provided
See all 1 projectsTrinarybits Technologies Pvt. Ltd. is a web development company specializing in creating robust and scalable online platforms. The company receives overwhelmingly positive feedback, with clients noting their high responsiveness, strategic insights, and commitment to understanding user needs. Approximately 60% of users reported enhanced engagement through improved user experience, and successful project management was a consistent theme across reviews.
-
$1,000+< $25 / hr50 - 249
Services provided
See all 8 projectsNextwebi IT Solutions Private Limited is a versatile IT services company specializing in web and mobile app development, CRM solutions, AI integration, and digital marketing. Across diverse projects, they have consistently delivered high-quality work, earning approximately 90% positive feedback. Clients highlight their strong project management, technical expertise, and commitment to achieving business goals. Reviewers frequently praise their responsiveness and professional approach, with about 60% noting their exceptional consultation and strategic insights.
-
UndisclosedUndisclosed50 - 249Cockeysville, MD
Services provided
See all 1 projectsRDA is a web development company specializing in Sitecore CMS, offering comprehensive website development services. With a strong focus on project management and client communication, RDA is praised for their professionalism, expertise, and ability to deliver projects smoothly and on schedule. 100% of the feedback highlights the company's exceptional understanding of Sitecore and their ability to meet project needs effectively.
-
$1,000+$25 - $49 / hr2 - 9
Services provided
See all 1 projectsrozwoj-oprogramowania.pl is a software development company specializing in creating automated systems using technologies like Java, Spring Boot, and Selenium. The company received positive feedback, with 100% of reviewers noting their timely project completion and effective problem-solving skills. Clients appreciated the smooth project management and communication, emphasizing the developer’s ability to resolve technical challenges efficiently.
-
$10,000+$100 - $149 / hr10 - 49Madrid, Spain
Services provided
See all 2 projectsEtéreo is a software development company specializing in frontend architecture, UX/UI design, and agile project management. Reviews consistently highlight their high performance, outstanding communication, and innovative, business-oriented solutions. Impressively, 100% of reviewers noted significant improvements in project outcomes, including a 45% increase in conversion rates and a 30% boost in online sales.
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 and their real-time quotes in minutes.
Get My QuotesWhy 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
35.8/40.020/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
37.8/40.020/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$100,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
34.7/40.019/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
32.1/40.016.6/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
34/40.018.8/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.6/40.015.8/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.3/40.017.8/20 Reviews9.8/10 Clients & Experience3.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
30.8/40.016.4/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
30.7/40.016.2/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
30.5/40.015.2/20 Reviews8.8/10 Clients & Experience6.6/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
36.4/40.020/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
33.3/40.019.6/20 Reviews10/10 Clients & Experience3.7/10 Market PresenceService focus
35% Enterprise App Modernization65% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.1/40.015.8/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$10,000+$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
35.4/40.019.6/20 Reviews9.1/10 Clients & Experience6.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
35.6/40.020/20 Reviews10/10 Clients & Experience5.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
33.5/40.017.2/20 Reviews9.8/10 Clients & Experience6.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
31.8/40.017.6/20 Reviews10/10 Clients & Experience4.2/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$1,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
34.8/40.017/20 Reviews9.7/10 Clients & Experience8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$150 - $199 / hr50 - 249Claymont, DE
Ability to deliver
33.3/40.016.6/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.020/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.3/40.016.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34/40.017.8/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.6/40.016.6/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
32.6/40.018.6/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
31.5/40.017.2/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
Ability to deliver
33.4/40.016.6/20 Reviews9.9/10 Clients & Experience7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.4/40.016.4/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
28.2/40.016.2/20 Reviews7.8/10 Clients & Experience4.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
34.2/40.018.8/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
10% Enterprise App Modernization90% 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.