Top Application Modernization Services
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$5,000+$25 - $49 / hr10 - 49Chennai, India
Services provided
See all 8 projectsSiam Computing is a versatile technology services company specializing in web development, software development, and custom solutions, as highlighted by their engagement with diverse sectors, including healthcare, education, and real estate. The reviews demonstrate an 80% positive sentiment, with clients appreciating their professional project management and commitment to deadlines. Approximately 60% of reviewers commend Siam Computing's collaborative approach and technical expertise, indicating their capability to align with client values and project needs. Potential areas for improvement include enhancing resource transparency and refining communication processes.
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$25,000+$25 - $49 / hr10 - 49Burgas, Bulgaria
Services provided
See all 3 projects42px is a software development company specializing in front-end development with expertise in React and Typescript. The company consistently meets client expectations, with 100% of reviewers noting successful project outcomes such as timely delivery and bug-free implementations. Clients praise their agile project management approach, highlighting seamless integration with existing teams and effective communication throughout the project lifecycle.
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$25,000+$25 - $49 / hr250 - 999
Services provided
See all 1 projectsEvolve Blue is a web development and SEO company known for creating mobile-responsive websites and managing search engine optimization to improve client visibility. According to reviews, 100% of clients report increased business and satisfaction with their services, highlighting the team's patience, transparency, and effective communication. The company fosters ongoing relationships and delivers impactful results, with no reported areas for improvement.
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$10,000+Undisclosed1,000 - 9,999Princeton, NJ
Services provided
See all 1 projectsNeurealm is a technology services company specializing in Salesforce upgrades and enhancements. Reviews indicate 100% positive feedback, highlighting their technical expertise and professional conduct. Clients are impressed by their ability to deliver projects on time and within budget, with no areas for improvement noted.
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$50,000+$100 - $149 / hr10 - 49Philadelphia, PA
Services provided
See all 9 projectsOpenForge is a mobile app development company specializing in hybrid app solutions using platforms like Ionic. Across numerous client reviews, OpenForge is consistently praised for their expertise, communication, and project management skills, with over 90% of reviews highlighting their responsiveness and ability to meet deadlines. Clients frequently commend their collaborative approach, thoroughness in testing, and commitment to delivering high-quality, functional products.
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
Services provided
See all 5 projectsViitorCloud is a versatile technology service provider specializing in custom software development, web development, and branding services. The company is recognized for its professionalism, adaptability, and responsiveness, with 100% of reviewers commending their effective communication and timely project delivery. Areas for improvement include upfront cost communication and proactive problem-solving. Overall, ViitorCloud is praised for its technical expertise and human values.
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$25,000+$25 - $49 / hr10 - 49Chicago, IL
Services provided
See all 8 projectsTwinCore offers services such as web-based software development, design, support, and enhancement, with a strong focus on Application Modernization and IT Modernization. Feedback consistently highlights their on-time, on-budget delivery, exemplary service, and impressive knowledge and experience, making them a reliable partner for digital transformation projects.
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$5,000+$25 - $49 / hr10 - 49Ho Chi Minh City, Vietnam
Services provided
See all 12 projectsSosene Software is a versatile software development company specializing in custom solutions for education, e-commerce, and administrative applications. Their reviews reflect a strong commitment to customer satisfaction, with 100% of clients praising their proactive communication and timely delivery. While some reviewers suggest improvements in communication from developers, 90% commend their professional management and technical expertise.
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$5,000+< $25 / hr50 - 249Karachi, Pakistan
Services provided
See all 4 projectsHexalyze Consulting Services specializes in Enterprise Application Modernization, offering comprehensive ERP implementation, training, and support. With 100% positive feedback, clients commend their professionalism, effective project management, and timely communication. Notably, 100% of reviewers highlight their expertise in software services, while 100% suggest expanding their product offerings to include cloud and cybersecurity solutions for a holistic digital transformation.
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$1,000+$100 - $149 / hr2 - 9Memphis, TN
Services provided
See all 1 projectsWintellisys, Inc. is an IT services company specializing in managing IT infrastructure and cloud solutions. The reviews highlight their ability to deliver enterprise-class services, with 100% positive feedback on their dependable project management and cost-effective solutions. Clients appreciate their focus on essential services without upselling unnecessary products.
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$1,000+< $25 / hr10 - 49
Services provided
See all 2 projectsFlaminTech LLP is a web and application development company specializing in custom eCommerce solutions. Their client feedback is overwhelmingly positive, with reviewers appreciating their timely delivery and user-friendly UI. Notably, 100% of reviewers mentioned the outstanding quality of their deliverables, highlighting a commitment to excellence and customer satisfaction.
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$10,000+$25 - $49 / hr250 - 999Beijing, China
Services provided
See all 1 projectsShinetech Software Inc. is a software development company specializing in UI and UX design for industrial-level projects. Clients report a favorable experience, highlighting the company's flexibility and effective project management, despite challenges with time differences and occasional design and management improvements. Approximately 80% of the feedback is positive, emphasizing the value and integrity of their software development services.
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$5,000+$25 - $49 / hr50 - 249The Woodlands, TX
Services provided
See all 5 projectsWebCreek is a versatile software development company offering expertise in branding, web development, and mobile app solutions. According to reviews, 100% of clients commend their effective project management and technical quality, often highlighting their customer-centric approach and adherence to deadlines. Additionally, 75% of reviewers emphasize their adaptability and responsiveness to feedback, ensuring project success and client satisfaction.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
Services provided
See all 6 projectsCodesClue Technologies is a software development company known for creating custom software solutions that streamline operations and improve data visibility. With 100% positive feedback, clients commend their efficient project management, timely delivery, and excellent understanding of industry-specific challenges. Multiple reviewers highlight their ability to deliver practical, scalable solutions that align with business needs.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
Services provided
See all 8 projectsPanth Softech is a versatile software development company providing services such as Dynamics 365 CRM development, ETL data solutions, and IoT hardware and app design. The company is praised for its strong communication, professionalism, and promptness, with over 80% of clients highlighting their effective collaboration and responsiveness. Some reviews noted areas for improvement in communication and quality control, but overall satisfaction remains high.
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Undisclosed$50 - $99 / hr2 - 9
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See all 1 projectsUbisource is a talent acquisition company renowned for providing nearshore sourcing solutions and aligning candidates with cultural and business needs. They consistently deliver high-quality resources promptly, with 100% of reviews highlighting their dependability and cultural alignment. Clients appreciate their thoroughness and minimal oversight requirements, with no areas identified for improvement.
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$10,000+$25 - $49 / hr50 - 249
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See all 4 projectsErbis is a comprehensive cloud services provider specializing in full-stack development, business analysis, and database management. Reviews indicate strong technical expertise and proactive project management, with 100% of reviewers noting their exceptional communication and partnership approach. While some initial solutions required adjustments, overall satisfaction with Erbis' adaptability and commitment to quality is consistently high.
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UndisclosedUndisclosed50 - 249Mississauga, Canada
Services provided
See all 1 projectsVeriday is a digital solutions company specializing in website development and DevOps services. Reviews highlight their adaptability, expertise, and effective communication, with 100% of feedback mentioning their commitment to project milestones and cost performance. Their ability to align with client goals and deliver value makes them a favored choice among clients.
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UndisclosedUndisclosed50 - 249Cockeysville, MD
Services provided
See all 1 projectsRDA is a distinguished web development company, specializing in Sitecore CMS solutions. Their reviews consistently highlight exceptional project management skills, seamless collaboration, and profound expertise in Sitecore, with 100% positive feedback emphasizing their professional approach and ability to anticipate and resolve issues effectively. Clients particularly appreciate their proficiency in creating intuitive, mobile-compatible websites that enhance user engagement and satisfaction.
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$10,000+$25 - $49 / hr10 - 49București, Romania
Services provided
See all 1 projectsDevsReady is a technology consultancy specializing in delivering secure and scalable digital banking platforms for corporate clients. The company received overwhelmingly positive feedback, with reviewers praising their strong project management, effective communication, and technical expertise. Approximately 90% of comments highlighted their practical, business-oriented approach and alignment with client values, with no significant areas for improvement noted.
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$10,000+Undisclosed50 - 249Sydney, Australia
Services provided
See all 1 projectsXAM is a software development company specializing in mobile app development, particularly utilizing Xamarin architecture. The company receives overwhelmingly positive feedback, with clients praising their comprehensive skillset and effective project management. Approximately 80% of reviewers highlight XAM's ability to deliver functional solutions that align with customer preferences, emphasizing their flexibility and resourcefulness in handling complex development processes.
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$5,000+$50 - $99 / hr50 - 249Warszawa, Poland
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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.
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$5,000+< $25 / hr10 - 49Kolkata, India
Services provided
See all 6 projectsBlue Copper Technologies Pvt Ltd is a custom software development company known for delivering high-quality applications across diverse industries, including fashion, accounting, insurance, and legal services. Their expertise in creating geo-location apps, web interfaces, and custom platforms is reflected in their clients' satisfaction, with approximately 90% of feedback being positive. Clients commend their project management skills, responsiveness, and dedication, though some mention challenges due to geographical differences.
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$5,000+$50 - $99 / hr10 - 49
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See all 1 projectsJazzTeam LLC is a software development company noted for its professional and agile approach to creating web applications and SaaS services. Client reviews indicate a high level of satisfaction, with 100% positive feedback highlighting their effective communication, timely delivery, and strong alignment with client objectives. Clients praise the team's discipline, proactivity, and impressive results, enhancing business processes and ensuring data security.
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$10,000+$25 - $49 / hr10 - 49
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See all 2 projectsBlare Technologies Sp. z o.o. is a technology firm specializing in software development for smart city solutions, digital twins, and virtual simulations. Their services consistently receive positive feedback, with clients praising their expertise, timely delivery, and commitment to quality. They are noted for their advisory role and excellent project management, with 100% of reviewers highlighting their professionalism and customer-focused approach.
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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 / hr2 - 9
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See all 3 projectsKind+Human is a dynamic UX/UI design company providing innovative prototyping and design solutions. Their clients consistently highlight their creativity, with over 80% mentioning their unique and innovative approaches. The company is viewed as a partner rather than just a vendor, with a strong focus on collaboration and delivering visually compelling designs that meet modern standards. However, some reviews advise attention to finer content details.
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$5,000+$50 - $99 / hr10 - 49Santa Fe de la Vera Cruz, Argentina
Services provided
See all 2 projectsFlowing Code is a software development company known for its expertise in Java development and DevOps. Clients appreciate their ability to adapt swiftly to project requirements and integrate seamlessly into existing workflows. Feedback is overwhelmingly positive, highlighting their commitment to quality, with one client noting a 95% reduction in incident reports. While communication is generally good, there's room for continuous improvement.
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$25,000+$50 - $99 / hr10 - 49Poznań, Poland
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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.
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$10,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 4 projectsDevOpsi is a versatile software development company specializing in DevOps, custom application development, and cloud infrastructure solutions. Across its reviews, 100% of the clients praised DevOpsi's technical expertise, project management autonomy, and commitment to quality. While communication and time estimation were noted as areas for improvement by 50% of the reviewers, the overall satisfaction with their professional engagement and delivery remains high.
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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 / 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 -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
37.5/40.019/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
25% Enterprise App Modernization75% 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.