Top Application Modernization Services
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$10,000+$50 - $99 / hr50 - 249München, Germany
Services provided
See all 5 projectsAterise is a software development and IT consulting company specializing in financial solutions and digital products. Across the reviews, clients praised Aterise for their on-time delivery and strong communication skills. The company is commended for their quality work, cost-effectiveness, and adaptability to project needs. Notably, 100% of reviewers were impressed with their professionalism and execution, with no areas marked for improvement.
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$5,000+$25 - $49 / hr10 - 49Atlanta, GA
Services provided
See all 1 projectsMVP Now Studio is a CRM implementation company that assists businesses in configuring and integrating CRM systems like Zoho. The feedback from their clients is overwhelmingly positive, highlighting their detailed understanding of client needs and smooth workflow. Notably, 100% of reviewers expressed satisfaction with the solutions provided by MVP Now Studio.
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$5,000+$25 - $49 / hr10 - 49Chorzów, Poland
Services provided
See all 3 projectsEvertop is a software development company specializing in creating custom applications and platforms for diverse business needs. Their clients commend them for their excellent project management, flexibility, and timely delivery, with 100% of reviewers highlighting their exemplary service and communication. Notably, clients appreciate Evertop's ability to adapt and implement changes effectively, showcasing their commitment to meeting client expectations.
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$5,000+$50 - $99 / hr10 - 49Warszawa, Poland
Services provided
See all 1 projectsUltrico is a company specializing in Enterprise Application Modernization, offering services such as app modernization and digital transformation. Reviews highlight their agility and quality mindset, with 100% of feedback indicating strong adaptability and seamless integration with client culture. Clients appreciate their technical excellence and proactive solutions, despite occasional delays in providing new resources.
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$10,000+$50 - $99 / hr2 - 9Burbank, CA
Services provided
See all 1 projectsWorklab.io, Inc. is a comprehensive software development company specializing in mobile and desktop app development, backend solutions, and technology consulting. The client feedback is overwhelmingly positive, with 100% of reviewers praising their ability to deliver a perfect product on time and their impressive commitment to client vision and technological expertise.
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UndisclosedUndisclosed10 - 49
Services provided
See all 1 projectsNenu Tech Limited is a software development company specializing in creating customized client management solutions and providing SEO services. Their clients appreciate their attentiveness and clear communication, with 100% positive feedback regarding their project management skills and timely delivery. Clients commend their professionalism and reliability, emphasizing the company's ethical approach in a market often fraught with challenges.
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$5,000+$25 - $49 / hr10 - 49Jaipur, India
Services provided
See all 5 projectsGlobal Lancers specializes in web and app development, digital marketing, and branding services. The company is praised for its project management capabilities and ability to understand and implement client needs. Approximately 100% of reviewers noted increased engagement and satisfaction with their services, highlighting their continuous improvement and use of innovative technologies.
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$10,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Services provided
See all 3 projectsAgilites is a versatile software development and quality assurance company, proficient in handling product development and testing across various platforms, including healthcare IT and HR automation. Their clients commend their professionalism and ability to integrate seamlessly as part of their teams, with 100% of reviewers highlighting their strong technical skills and dedication to honest business practices. They consistently meet and exceed expectations in engineering quality and project management efficiency.
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$50,000+$50 - $99 / hr10 - 49Budapest, Hungary
Services provided
See all 1 projectsKonstruktor Online is an IT development company specializing in both software and hardware solutions. The reviews highlight their comprehensive service offering, including user experience design and project management, with 100% of feedback being positive. Clients praise their ability to integrate complex systems and their innovative approach, though they note room for growth in maturity and response time.
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$25,000+$50 - $99 / hr10 - 49
Services provided
See all 2 projectsOrafox, Inc. is a web development company specializing in e-commerce solutions and website optimization. The company has received overwhelmingly positive feedback, with clients praising their responsiveness, organization, and dedication. Approximately 100% of reviewers noted their impressive project management and communication skills, while all clients highlighted the significant improvements in their website performance and conversion rates.
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$1,000+Undisclosed2 - 9London, England
Services provided
See all 1 projectsDigiscript Technical Solutions is a web development company that specializes in creating landing pages to enhance online traffic. According to client feedback, 100% of reviewers express satisfaction with Digiscript’s ability to adhere to agreements and meet demands effectively. Communication and project management are also noted to be smooth and efficient, contributing to ongoing projects' success.
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$10,000+Undisclosed10 - 49Toronto, Canada
Services provided
See all 1 projectsBuildable is a web development company specializing in creating web applications using technologies like React and Node.js. They have been praised for their organizational skills, proactive approach, and superior communication, with 100% of reviewers noting their impressive project management and technological foresight. Clients appreciate their ability to add value and effectively meet project needs.
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$1,000+$25 - $49 / hr2 - 9Kyiv, Ukraine
Services provided
See all 1 projectsBlackSeed is a web development company specializing in comprehensive transport brokerage platforms, including web and mobile solutions. Reviews indicate a 100% satisfaction rate, highlighting their responsiveness and effective project management. Clients appreciate their detailed approach and round-the-clock support, with 80% mentioning impressive communication and responsiveness. BlackSeed continuously enhances its processes to maintain high-quality standards.
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$5,000+< $25 / hr10 - 49Dubai, United Arab Emirates
Services provided
See all 2 projectsServiots Technology Pvt. Ltd. is a web development company known for designing and hosting websites while providing SEO services. With 100% of reviews highlighting their dedication and impressive project management, clients appreciate their commitment to timely delivery and quality. All reviews express satisfaction, with no areas for improvement mentioned.
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$5,000+$50 - $99 / hr10 - 49Tampa, FL
Services provided
See all 6 projectsKatpro Technologies Inc is a technology consulting firm specializing in automation, custom application development, cloud solutions, and IT consulting services. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their adaptability, project management, and proactive communication. Clients particularly commend their ability to deliver timely solutions and tackle complex challenges, although some suggest better alignment of resources to client needs.
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$1,000+< $25 / hr10 - 49Bhopal, India
Services provided
See all 1 projectsTriosoft Technologies Pvt. Ltd. is a web and application development company known for its dedicated customer service and impressive portfolio. The majority of feedback highlights their timely project delivery and quality work, with 100% of reviewers emphasizing effective workflow and communication. Some improvement is suggested in project phase management.
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$1,000+Undisclosed10 - 49
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See all 2 projectsA1 Enterprise is a software development company specializing in workers' compensation claims management and insurance tracking systems. Reviews highlight their dedication to streamlining business processes and delivering on promises, with 100% of reviewers noting effective project management and customer service. Some users mention a learning curve, but overall satisfaction is high with no major complaints.
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$1,000+$25 - $49 / hr2 - 9San Pedro Garza García, Mexico
Services provided
See all 3 projectsUX Labs specializes in Enterprise App Modernization, providing innovative solutions and digital transformation services tailored to client needs. The reviews highlight their exceptional software modernization capabilities, operational efficiency improvements, and timely project delivery. Clients appreciate the intuitive user interfaces and exemplary professionalism, resulting in increased productivity and customer satisfaction.
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$5,000+$25 - $49 / hr2 - 9
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See all 1 projectsLifeisgoodlabs is an offshore development company specializing in open-source projects, including WordPress, Django, Python, and Amazon AWS. Overall, 100% of the feedback is positive, noting their flexibility and organized QA team. They handle 80% of open source development for their clients, enhancing project delivery and client acquisition.
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$5,000+$100 - $149 / hr2 - 9Calgary, Canada
Services provided
See all 3 projectsSozenTech Consulting Inc. is an IT consulting company specializing in curriculum design and implementation for technical training, as well as interactive smartphone application development. Across their reviews, 100% of clients highlight their commitment to understanding client needs and flexibility in project execution. Clients consistently praise their proactive and professional approach, with no negative feedback reported.
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Undisclosed< $25 / hr10 - 49Raipur, India
Services provided
See all 1 projectsYourSofter IT Service Pvt. Ltd. is a software development company specializing in creating custom solutions like school management systems and websites. Feedback highlights their attention to detail, effective project management, and technical expertise, with 100% of reviewers noting satisfaction. Their ability to translate client needs into comprehensive solutions is highly praised, with no areas identified for improvement.
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$50,000+$50 - $99 / hr250 - 999Plano, TX
Services provided
See all 7 projectsDigicode is a comprehensive software development company specializing in creating custom mobile applications, web platforms, and e-commerce solutions. Their reviews highlight a strong commitment to project management, expertise, and adaptability, with over 90% of feedback emphasizing their professionalism and responsiveness. Clients consistently appreciate their ability to deliver quality products on time and within budget, often noting their collaborative and flexible approach.
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$10,000+$25 - $49 / hr10 - 49Singapore, Singapore
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See all 1 projectsSleekDigital is a versatile software development company specializing in ERP, CRM, and project management systems available on web and mobile platforms. Clients appreciate their reasonable pricing and proactive approach, with 100% of reviewers highlighting their effort to understand business needs. While project timelines may slightly extend, they maintain strong project management practices, providing regular updates.
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Undisclosed< $25 / hr250 - 999
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See all 6 projectsZaptech Solutions is a versatile development company offering services in mobile app, web, and IoT solutions. The company is praised for its adaptability, efficiency, and high-quality deliverables, with over 90% of reviews highlighting timely communication and strong project management. Most clients appreciate their broad skill set and ability to handle complex projects, making them a reliable long-term partner.
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$5,000+$50 - $99 / hr10 - 49Leeds, England
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See all 12 projectsDecodifi Limited is a versatile digital development company specializing in creating web and mobile applications with a focus on MVPs and tailored software solutions. Across various reviews, Decodifi Limited is praised for its collaboration, flexibility, and technical proficiency, with over 80% of clients highlighting their effective communication and responsiveness. Clients appreciate the company's dedication to understanding project goals, although some suggest improvements in project timeline estimates and quality control processes.
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$10,000+$100 - $149 / hr10 - 49Leeds, England
Services provided
See all 6 projectsNewRedo Ltd. is a software development company specializing in creating bespoke digital solutions and offering ongoing technical support. Clients consistently praise their ability to understand unique project needs and provide tailored services, contributing to significant improvements in efficiency and user satisfaction. With 100% of reviewers highlighting their professionalism, flexibility, and effective communication, NewRedo Ltd. is lauded for facilitating seamless project management and delivering high-quality, user-centric solutions.
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$1,000+$25 - $49 / hr2 - 9
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See all 8 projectsDeKnows is a versatile web development company offering a wide range of services, including website troubleshooting, custom design, development, and maintenance. Based on the reviews, 100% of clients praised their fast delivery, excellent communication, and tailored approach. They are commended for their commitment to client needs, with multiple clients noting their ability to consistently meet deadlines and exceed expectations.
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$25,000+Undisclosed10 - 49London, England
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See all 4 projectsTeksati [Husssl Ltd] is a mobile app development company known for aligning well with client values and culture. Their reviews highlight responsiveness and transparency, with 100% of reviewers praising their engagement and prototype design process. However, there is a suggestion for improved communication during development stages.
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$1,000+< $25 / hr10 - 49
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See all 10 projectsTatvamasi Labs is an Enterprise Application Modernization company noted for its effective solutions in digital transformation, specifically in enhancing efficiency through software modernization. The client reviews highlight a 100% satisfaction rate with reduced processing times and excellent communication, underscoring the company's ability to modernize enterprise applications successfully.
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$5,000+< $25 / hr10 - 49Udaipur, India
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See all 1 projectsTechon Dater Systems Pvt Ltd is a technology solutions provider specializing in web and desktop application development, particularly for order and production management. The company has received positive feedback for their project management and ability to automate complex processes, with a 100% satisfaction rate among reviewers noting their responsible and knowledgeable team.
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List of the Top 15 Legacy Modernization Services
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$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
35.9/40.016.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
38.1/40.019/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
35.4/40.015.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.2/40.017.2/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
34/40.015.2/20 Reviews8.8/10 Clients & Experience10/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
37.3/40.017.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
38.9/40.019.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
11% Enterprise App Modernization89% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
36.4/40.016.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
32.2/40.015.8/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
32.1/40.017.4/20 Reviews9.8/10 Clients & Experience4.8/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
37.1/40.017.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$150 - $199 / hr50 - 249Montréal, Canada
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
35.3/40.016.8/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
35.3/40.017/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
33.3/40.016/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$50 - $99 / hr50 - 249Prague, Czech Republic
Ability to deliver
39.2/40.020/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$100 - $149 / hr50 - 249Belfast, Northern Ireland
Ability to deliver
37/40.017.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
Ability to deliver
37.6/40.018.6/20 Reviews9.6/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
34.9/40.017.8/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$75,000+$50 - $99 / hr50 - 249Marlborough, MA
Ability to deliver
38.9/40.020/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr250 - 999Palo Alto, CA
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
36.7/40.017/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other
Top App Modernization Agencies
App modernization companies upgrade, refactor, or re-platform legacy software so it performs like a modern, cloud-ready application. They begin by auditing the existing codebase, infrastructure, and business requirements, then create a roadmap that might include re-architecting monolithic apps into microservices, containerizing workloads, or migrating databases to scalable cloud environments. Their end goal is to improve performance, security, and maintainability while minimizing downtime.
Most firms deliver a mix of strategic and technical services, such as:
- Legacy code assessment and technical debt analysis
- Re-platforming (e.g., on-prem to AWS, Azure, or GCP)
- Code refactoring and re-architecting into microservices
- API enablement and containerization (Docker, Kubernetes)
- UI/UX refresh and mobile optimization
- Data migration, cleansing, and database modernization
- Ongoing maintenance, DevOps, and cloud cost optimization
Pricing varies widely depending on project scope, complexity, and the tech stack involved. Clutch data shows most engagements range from $50,000 to $500,000 overall, with hourly rates between $75 and $200. Lighter projects like a UI facelift or limited refactoring tend to fall near the lower end, while full re-architectures involving cloud migration, data overhaul, and strict compliance can exceed $1 million. Always request a detailed proposal that outlines costs for discovery, development, testing, and support.
When choosing the best right app modernization for your business, consider these:
- Review expertise: Look for case studies that mirror your tech stack (Java, .NET, PHP) and industry compliance needs.
- Check client feedback: Verified Clutch reviews reveal how the team communicates, hits deadlines, and handles setbacks.
- Evaluate methodology: A strong partner will propose a phased approach that includes assessment, pilot, and rollout stages, each with clear success metrics.
- Validate certifications: Cloud partnerships (AWS, Microsoft, Google) signal deep platform knowledge.
- Assess cultural fit: Long projects require easy communication, mutual trust, and shared time zones or overlap.
These are some of the red flags that you should watch for when hiring an app modernization company:
- Guaranteed timelines before an audit: Accurate estimates require a code and infrastructure review.
- Lack of documentation: If they won’t commit to architecture diagrams, test plans, or knowledge transfer, future maintenance may suffer.
- One-size-fits-all solutions: Forcing every project onto a single cloud or framework can indicate limited expertise.
- Poor security practices: Outdated OWASP knowledge or no DevSecOps pipeline is a deal-breaker for critical systems.
- Minimal client references: A reputable firm should readily provide recent, relevant references.
Here are some questions you can ask app modernization companies before hiring them:
- Which modernization strategies (rehost, refactor, re-architect) do you recommend for our stack, and why?
- Can you share success metrics from similar projects—e.g., performance gains or cost reductions?
- What is your approach to minimizing downtime during migration?
- How will you ensure code quality and security (tooling, peer reviews, automated testing)?
- What support and knowledge-transfer do you provide after launch?
- How do you handle scope changes and unforeseen legacy issues?
Partnering with specialists accelerates time-to-value. Experienced teams bring proven frameworks, automation toolchains, and cloud partnerships that help reduce risk and shorten migration windows. Businesses often benefit from faster performance, lower maintenance costs, improved security compliance, and easier feature releases, all without overburdening internal teams.
A freelancer may handle small refactoring tasks cost-effectively but often lacks the resources for large-scale audits, DevOps, and 24/7 support. Agencies provide multidisciplinary teams including architects, developers, QA specialists, DevOps engineers, and project managers who can deliver end-to-end transformations with enterprise-grade SLAs.