Top Application Modernization Services
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$5,000+$50 - $99 / hr10 - 49Bratislava, Slovakia
Services provided
See all 4 projectsYounics is a software development company specializing in cross-platform development and agile solutions. Reviews indicate a strong alignment with client values, timely project delivery, and professional yet friendly communication. Approximately 100% of reviewers praised their project management and cultural fit, with no significant areas for improvement mentioned.
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UndisclosedUndisclosed10 - 49London, England
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See all 2 projectsWestPoint is a versatile development company specializing in building and enhancing digital platforms and mobile applications. With a focus on technical skill and product thinking, they have received positive feedback for their fast performance, reliability, and effective project management. Over 90% of reviewers commend their technical capabilities and organizational skills, though some suggest slightly faster task completion on complex projects.
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$10,000+$50 - $99 / hr10 - 49Timișoara, Romania
Services provided
See all 2 projectsDevPlant is a development company specializing in web and mobile application development, known for their strong project management and effective communication skills. Approximately 100% of reviewers highlight their professionalism and compatibility with company values, with 50% noting their ability to deliver within set timelines. Clients appreciate their technical expertise and the seamless integration into their teams.
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$1,000+$50 - $99 / hr2 - 9
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See all 3 projectsPhanoon Software Solutions is a comprehensive web development company specializing in e-commerce and branding solutions. With 100% positive feedback across reviews, they are lauded for their high-end design expertise, project management proficiency, and effective communication. Key themes include seamless user experience, improved SEO metrics, and increased conversion rates, with reported improvements such as a 10% rise in conversion rates and a 45% increase in website traffic.
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$50,000+$25 - $49 / hr250 - 999Durham, NC
Services provided
See all 7 projectsMantra Labs is a versatile technology solutions provider that specializes in AI, UX design, and software development. The overall feedback from clients highlights their dedication, innovative thinking, and efficient delivery, with approximately 83% of reviews emphasizing their proactive project management and adaptability. However, around 17% mention areas for improvement, particularly in communication and requirement understanding.
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$25,000+$25 - $49 / hr10 - 49Warszawa, Poland
Services provided
See all 6 projectsSinova Development is a software development company specializing in Enterprise App Modernization and digital transformation services. With a focus on scalable and reliable solutions, they have received positive feedback for their strong engineering execution and effective project management. Notably, 100% of reviewers appreciated their ability to integrate AI and scalable system architectures within their projects.
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$25,000+$150 - $199 / hr10 - 49Chantilly, VA
Services provided
See all 1 projectsTDMK Digital is a digital development company specializing in mobile app design and development. Feedback highlights their strong design capabilities and effective project management, with a 100% positive mention of their design quality. While the company experienced some challenges with data integration and time estimates, they maintained responsiveness and adaptability throughout the project.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projectsXelleron Pty Ltd is a software development company specializing in Xero integration and financial data manipulation tools. Reviews highlight their responsiveness and proactivity, with 100% positive feedback on project delivery and management. Clients appreciate Stefan's extensive knowledge, which effectively scopes projects, saving time and money.
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$5,000+< $25 / hr10 - 49Dubai, United Arab Emirates
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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+$100 - $149 / hr2 - 9
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See all 5 projectsSEOParity is an agency specializing in comprehensive web development, technical audits, and platform migrations. With a 100% positive feedback rate, they are praised for their professionalism, effective project management, and proactive problem-solving. Over 80% of reviewers commend their seamless communication and reliable delivery, while 60% highlight their strong SEO and technical capabilities.
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$50,000+$50 - $99 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 7 projectsIntellivon is a company that specializes in Enterprise Application Modernization, focusing on app and AI development. Reviews highlight a 100% positive experience, emphasizing their expertise in AI integrations, user-friendly solutions, proactive project management, and strong alignment with client values. Clients praise their ability to simplify complex processes, maintain privacy, and deliver projects on time.
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$10,000+$50 - $99 / hr50 - 249Kyiv, Ukraine
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See all 2 projectsConfidence Technology is a company specializing in website programming and e-commerce solutions. Their reviews highlight a commitment to innovation, attention to detail, and efficient project management. Clients noted significant improvements in site performance and user engagement. While highly satisfied overall, some clients suggested more frequent progress updates could enhance communication. Approximately 100% of the reviews reflect positive feedback on their services and outcomes.
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$5,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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See all 1 projectsMG, a software integration company, is noted for its expertise in developing integration solutions between ERP and WMS systems. The feedback is overwhelmingly positive, with 100% of reviewers praising their timely delivery and error-free execution. Clients appreciate MG's know-how and cultural fit, highlighting their impressive project management skills.
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$1,000+$25 - $49 / hr2 - 9
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Horeb eCommerce is a web development firm specializing in design and implementation, particularly for complex projects like global electronics brands. They receive overwhelmingly positive feedback, with clients noting their professionalism, adaptability, and effective communication. A notable 100% of reviewers commend their willingness to collaborate closely and tailor solutions to specific client needs, leading to successful project outcomes.
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UndisclosedUndisclosed250 - 999Warszawa, Poland
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See all 1 projectsXB Software is a web development company specializing in IT staff augmentation and full-cycle website development. Their reviews highlight a 100% satisfaction rate, with clients praising their technical expertise, outstanding project management, and seamless team integration. Notably, 100% of reviewers commend their proactive approach and commitment to quality, resulting in significant improvements in platform efficiency and user engagement.
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UndisclosedUndisclosed50 - 249Edmonton, Canada
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See all 1 projectsSheetcast is a company specializing in converting Excel-based workflows into web applications, enhancing collaboration and data integrity. According to the reviews, 100% of clients praised their responsive project management and technical depth. A notable 80% mentioned their adaptability and ability to improve client engagement with live data models. The primary suggestion for improvement was expanding their post-launch documentation.
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$1,000+$25 - $49 / hr10 - 49Pune, India
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See all 1 projectsDIBS Technology is a development company specializing in custom web application development and networking security solutions. Reviewers highlighted their commendable guidance and patience, with 100% noting projects were delivered on time. While generally positive, some feedback suggested improvements in requirement gathering and initial strategy planning.
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$10,000+$25 - $49 / hr2 - 9
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See all 1 projectsCoconuts Software is a web development company specializing in the analysis, development, and implementation of web-based applications. The company is highly regarded for its expertise in the insurance sector, with 100% of reviewers praising its industry knowledge and innovative solutions. While some suggest improvements in vision and budgeting, the overall feedback is overwhelmingly positive, noting consistent deadline adherence and effective project management.
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$1,000+< $25 / hr2 - 9Nairobi, Kenya
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See all 1 projectsKenya Website Designers is a web development company specializing in creating web-based software platforms. The feedback from their clients is predominantly positive, highlighting their meticulous attention to detail and collaborative nature, although meeting deadlines is occasionally a challenge. Approximately 90% of reviewers emphasize their excellent project management and responsiveness.
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$1,000+$25 - $49 / hr2 - 9
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See all 8 projectsDeKnows is a web development company that offers comprehensive digital solutions, from troubleshooting website issues to creating complex, scalable e-commerce platforms. The company consistently receives positive feedback, highlighting their exceptional communication and project management skills. Notably, approximately 90% of reviewers praise their responsiveness and ability to meet deadlines, while 80% appreciate their commitment to client satisfaction and proactive approach.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsUxbox is a web development company specializing in creating multi-language, conversion-optimized, and user-friendly websites. The company received overwhelmingly positive feedback, with 100% of reviewers highlighting their professionalism and efficiency. Clients noted improvements in SEO, website traffic, and client satisfaction, showcasing Uxbox’s ability to deliver high-quality projects within budget and on time.
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$50,000+$300+ / hr2 - 9Evanston, IL
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See all 1 projectsJAM-IT BPM Consultants is a specialized consultancy firm offering advanced business process management solutions, particularly in fraud detection for the healthcare sector. Feedback from reviews indicates that they deliver high-quality work on time, with 100% of reviewers praising their technical expertise. However, there is minor room for improvement in professional responsibility despite their overall positive performance.
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 1 projectsVedlogic Solutions Pvt. Ltd. is an IT services company specializing in business solutions on Microsoft platforms, particularly Business Central. Reviewers highlight their responsive project management and friendly, helpful staff, with 100% positive feedback regarding their ability to meet project timelines and accommodate client needs.
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$5,000+$100 - $149 / hr2 - 9Bury St Edmunds, England
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See all 1 projectsORBN Digital is a web development company known for creating professional and user-friendly websites. The reviews emphasize their ability to integrate modern design elements and align closely with clients' visions. Feedback highlights their excellent project management, with 100% of reviewers praising their timely delivery and effective communication, focusing on a seamless and impressive experience.
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$5,000+$25 - $49 / hr2 - 9
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See all 1 projectsContento Labs is a software development company specializing in workflow management and digitization projects using open-source technologies. They have received positive feedback for delivering quality work, meeting most deadlines, and showcasing strong business understanding, with 100% of reviewers highlighting their technical capability. However, improvements in escalated support services were suggested due to their small team size.
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$10,000+$25 - $49 / hr50 - 249
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See all 3 projectsTechindo Systems Private Limited is a versatile technology service provider specializing in website and web application development, offering comprehensive solutions that include frontend, backend, and API development. The company receives overwhelmingly positive reviews, with clients praising their technical expertise, client-focused approach, and reliable project delivery. Notably, 100% of reviewers highlighted their adaptive communication and seamless execution as standout qualities.
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$10,000+$200 - $300 / hr10 - 49Reston, VA
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See all 2 projectsLean Innovation Labs is a company specializing in developing AI infrastructure and security solutions. Based on reviews, clients appreciate their alignment with company values and thoughtful design process. A significant 100% of reviewers mention their impressive project management and timely delivery, with no areas for improvement noted.
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$10,000+$25 - $49 / hr10 - 49Dhaka, Bangladesh
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See all 1 projectsKirrhosoft was founded by Farhan Sajjad, a veteran software engineer with decades of experience architecting systems for international markets. He noticed a recurring industry-wide challenge: the
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$5,000+$50 - $99 / hr10 - 49Regensburg, Germany
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See all 5 projectsint2code GmbH is an innovative software development company that specializes in embedded software solutions with a strong focus on the automotive and engineering sectors. Across the reviews, 100% of clients highlight the exceptional technical expertise and the proficiency of its engineers. The company is praised for its effective communication and integration within client teams, with no significant complaints or areas for improvement mentioned.
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$1,000+$25 - $49 / hr10 - 49Pune, India
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See all 1 projectsDeep Valley Systems Pvt. Ltd. is a software development company offering mobile app development and AWS server management. The reviews highlight their dedication and flexibility, although they encounter occasional rework and learning curves with new technologies. Approximately 70% of the feedback emphasizes their willingness to accommodate requests and deliver results.
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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.