Top Application Modernization Services
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$5,000+< $25 / hr10 - 49Surat, India
Services provided
See all 5 projectsTreta Infotech is a versatile IT solutions company specializing in web development, SharePoint solutions, and bespoke software development. The company receives overwhelmingly positive feedback, with clients praising their proficiency, dedication, and effective project management. Approximately 100% of reviewers highlight their professionalism and responsiveness, while also noting their ability to accommodate changes and deliver high-quality solutions.
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$25,000+$150 - $199 / hr10 - 49St. Louis, MO
Services provided
See all 1 projectsAlliance Systems is a technology solutions provider specializing in web development and digital marketing strategies. The company receives overwhelmingly positive feedback, with clients praising their sophisticated technology solutions, effective project management, and flexibility, leading to notable sales increases. Approximately 100% of reviewers highlight their fair pricing and exceptional service, underscoring their value and reliability as a partner.
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$5,000+< $25 / hr50 - 249Kochi, India
Services provided
See all 2 projectsVofox Solutions is a software development company specializing in website, CRM, ERP, and custom software solutions. Reviews indicate a high level of client satisfaction, with clients praising their reliability and effective project management, resulting in increased efficiency and automation. Approximately 90% of reviewers noted the team's professionalism and strong communication skills. Areas for improvement include initial documentation detail.
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$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.
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$5,000+$25 - $49 / hr10 - 49Sugar Land, TX
Services provided
See all 5 projectsEnginerasoft is a software development company specializing in creating web applications and backend systems. The overall feedback from clients is overwhelmingly positive, highlighting their strong communication, transparency, and technical expertise. Approximately 100% of the reviews praise their project management and adaptability, while over 90% emphasize their ability to deliver functional and innovative solutions on time, making them a reliable partner in software development projects.
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UndisclosedUndisclosed50 - 249Wrocław, Poland
Services provided
See all 4 projectsAvra Software is a software development company specializing in Java and enterprise solutions. The reviews indicate a consistent record of delivering high-quality, innovative software solutions across various industries, with 100% positive feedback on their adaptability and reliability. Clients frequently commend their ability to meet deadlines and their stable, skilled team.
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$1,000+< $25 / hr10 - 49
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See all 7 projectsAgilsys Software Labs Pvt. Ltd. specializes in Enterprise Application Modernization and software development services, excelling in API development, full-stack development, and testing automation. Reviews highlight their 100% commitment to quality, timely delivery, and proactive problem-solving. Their ability to modernize enterprise applications while maintaining effective communication and adaptability earns them consistently positive feedback.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
Services provided
See all 6 projectsWidle is a development and digital transformation company specializing in API integration and custom application creation, particularly using Retool. Across various reviews, 100% of feedback highlights their exceptional speed and communication, with several clients emphasizing their cost-effective services and expertise. Widle is praised for delivering projects on or ahead of schedule, and for providing valuable, innovative solutions that exceed expectations.
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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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$250,000+$150 - $199 / hr10 - 49Oklahoma City, OK
Services provided
See all 1 projectsPhase 2 is a software development company specializing in mobile platform solutions, particularly for sectors requiring remote accessibility. They have been praised for their project management skills and effective communication, with an estimated 800 industry members utilizing their app. A significant 100% of reviewers value their ongoing support and recommend discussing project scopes thoroughly.
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$5,000+< $25 / hr50 - 249P N Pudur, India
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See all 10 projectsTechnoduce Info Solutions Pvt Ltd is a versatile IT solutions company specializing in web and mobile application development. The company is highly praised for its dynamic approach, professional communication, and supportive service, with over 80% of reviews highlighting these strengths. Although there are minor areas for improvement, such as project management updates and English proficiency, Technoduce consistently delivers projects that meet client expectations and deadlines.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projectsWBPRO LLC is an app development company specializing in software solutions, particularly for the insurance industry. The company is praised for its top-notch skills and effective project management, with 100% of reviewers highlighting their accessibility and flexibility. While they have a learning curve with unfamiliar applications, their ability to adapt and provide industry-specific insights makes them highly recommended.
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$50,000+$50 - $99 / hr50 - 249
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See all 1 projectsSemantive is a software development company specializing in creating customized tools and solutions, particularly utilizing Python technology. The reviews reflect a 100% positive sentiment, highlighting their strong project management, efficiency, and proactive approach. Clients appreciate their ability to deliver time-saving tools and consistent collaboration, with no negative feedback reported.
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$10,000+$150 - $199 / hr10 - 49Lake Oswego, OR
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See all 6 projectsSteelhead Software is a company specializing in Enterprise Application Modernization, particularly in software platform update services. They receive overwhelmingly positive feedback, with clients highlighting their transparency, collaborative approach, and ability to meet tight timelines and budgets. Impressively, Steelhead Software’s project management fosters continuous communication, ensuring client satisfaction and seamless digital systems transformation.
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$10,000+$25 - $49 / hr50 - 249
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See all 6 projectsEnkaytech, a technology solutions provider, specializes in automation and integration services, particularly for logistics operations. The company received overwhelmingly positive feedback, with clients praising their efficient integration of automation and seamless project management. Notably, 100% of reviewers highlighted their ability to deliver timely and impactful solutions with minimal disruption.
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$25,000+$25 - $49 / hr50 - 249Praha, Czech Republic
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See all 1 projectsWhirr Crew s.r.o. is a development company specializing in UI migration to React and mobile application development using React Native. The company is praised for being proactive, humble, and professional, with all deliverables meeting project objectives. A significant 100% of the feedback highlights their value for money and proximity to clients as key advantages.
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$50,000+$150 - $199 / hr10 - 49Broomfield, CO
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See all 1 projectsLatitude 40 Consulting, Inc. is a technology consulting firm specializing in modernizing business systems through cloud transitions, system integrations, and performance enhancements. The company has received entirely positive feedback, with 100% of reviewers praising their responsiveness and strategic insight, particularly in transforming technology stacks and customer experiences while acting as a reliable business partner.
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$5,000+$25 - $49 / hr10 - 49Kraków, Poland
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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.
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$10,000+$100 - $149 / hr10 - 49Berlin, Germany
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See all 3 projectscontrol.alt.coop eG is a software development company specializing in backend, mobile app development, and system architecture. Across the reviews, clients consistently highlight their technical expertise, problem-solving skills, and effective project management. Approximately 100% of reviewers praise their ability to deliver scalable and secure solutions, with a focus on client collaboration and meeting deadlines. Clients also appreciate their transparency and adaptability, which ensure project success.
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$1,000+$25 - $49 / hr2 - 9
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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.
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$1,000+< $25 / hr50 - 249
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See all 5 projectsNextwebi IT Solutions Private Limited is a multifaceted IT services provider specializing in web and mobile app development, CRM systems, e-commerce solutions, and digital marketing. Their reviews reveal a 100% positive feedback rate, with 75% highlighting their professionalism, timely delivery, and technical expertise. Clients commend their ability to enhance operational efficiency and drive business growth through customized solutions and strategic digital marketing.
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$10,000+$100 - $149 / hr10 - 49Madrid, Spain
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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.
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UndisclosedUndisclosed50 - 249Hopkins, MN
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See all 2 projectsAubrant Digital is a company specializing in Enterprise Application Modernization, focusing on modernizing legacy systems and enhancing digital transformation through robust API development. Feedback indicates a 100% satisfaction rate, with clients appreciating their alignment with project goals and commitment to understanding client needs.
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$5,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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See all 9 projectsTec Solutions is a firm specializing in Enterprise Application Modernization, known for its professional capacity and efficiency. With 100% positive feedback, clients highlight their ability to meet productivity goals and deliver solutions on time, emphasizing their competence in IT modernization and digital transformation.
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$5,000+$25 - $49 / hr50 - 249Hanoi, Vietnam
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See all 3 projectsBHSOFT is a software development company specializing in system integration, custom software development, and consulting services. The company is known for its flexible approach and impressive leadership, as 100% of reviewers highlighted their satisfaction with BHSOFT's performance and problem-solving capabilities. Frequent praise includes their proactive communication and ability to propose innovative solutions, while areas for improvement include flexibility in user requests and client management.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 1 projectsMulticore Technologies is a comprehensive app development company specializing in creating web and native applications. The company received positive feedback for its ability to meet project specifications, with 100% of reviewers expressing satisfaction with their work. Clients highlighted effective communication and project management, underscoring Multicore Technologies' commitment to exceeding expectations.
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$25,000+$50 - $99 / hr10 - 49Paris, France
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See all 1 projectsEuro Tech Conseil is a software development company specializing in tailored CRM solutions. Reviews highlight their professional approach, with 100% positive feedback noting timely project delivery and a 30% reduction in manual tasks. Clients commend their personalized service and alignment with company values, emphasizing strong customer relations and competence.
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$1,000+$100 - $149 / hr2 - 9Los Angeles, CA
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See all 11 projectsNexeo, a versatile software development company, specializes in UI/UX design, backend systems, and interactive web applications. Their clients consistently praise their ability to deliver projects on time with 100% success, highlighting their proactive communication and creative solutions. With around 90% of reviews emphasizing reliability and personalized service, Nexeo is recognized for enhancing efficiency and fostering client independence.
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$50,000+$150 - $199 / hr10 - 49
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See all 3 projectsWaveOC is a Salesforce development company that specializes in creating customized solutions for complex business challenges. Based on reviews, 100% of clients praise their responsiveness, professionalism, and technical expertise, noting significant improvements in project outcomes. While some challenges with project management were identified, clients appreciate their dedication to resolving issues and delivering high-quality work.
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$10,000+$25 - $49 / hr50 - 249
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See all 5 projectsAquSag Technologies is an IT firm specializing in web development, server maintenance, and IT consulting. Across numerous reviews, 100% of clients praise their high-quality deliverables, budget-friendly pricing, and excellent communication. Clients consistently highlight their innovative solutions and commitment to meeting deadlines, with no significant areas for improvement noted.
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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
35/40.019.6/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
35.3/40.018.8/20 Reviews10/10 Clients & Experience6.5/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
31.9/40.016.6/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.6/40.017.4/20 Reviews9.8/10 Clients & Experience4.4/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.3/40.015.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
38.1/40.020/20 Reviews10/10 Clients & Experience8.1/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
36.6/40.020/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.2/40.015.8/20 Reviews10/10 Clients & Experience4.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$25,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
33.9/40.018.2/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
29.8/40.015.2/20 Reviews8.8/10 Clients & Experience5.9/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
35.7/40.020/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
31.1/40.016/20 Reviews10/10 Clients & Experience5.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
33/40.017.2/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
37/40.019.8/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
32.9/40.016.6/20 Reviews10/10 Clients & Experience6.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.7/40.016.8/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
34.3/40.019/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
33.7/40.016.6/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
32.2/40.017.2/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr10 - 49Farmington, MI
Ability to deliver
31.5/40.016.6/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34.1/40.018.4/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$150 - $199 / hr50 - 249
Ability to deliver
32/40.016.6/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.8/40.016.4/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$1,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
32.6/40.017.2/20 Reviews9.4/10 Clients & Experience6/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.5/40.016.6/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
31.5/40.016.8/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$250,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
33.3/40.017.6/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
31.5/40.016.2/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
31.4/40.016.4/20 Reviews9.8/10 Clients & Experience5.2/10 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.