Top Application Modernization Services
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UndisclosedUndisclosed10 - 49Ballwin, MO
Services provided
Euroaxiom is an Accounting company. The team provides Accounting and Finance & Accounting Outsourcing (FAO), and the agency is in Ballwin, Missouri.
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Undisclosed$100 - $149 / hr50 - 249
Services provided
Established in 2004, Mass System Services Inc is a Back Office Outsourcing company. Their team specializes in Back Office Outsourcing and other IT consulting and SI.
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Undisclosed$100 - $149 / hr50 - 249Jacksonville, FL
Services provided
Midsize software development company eLink Business Innovations, is located in Jacksonville, Florida. Their services include Custom Software Development and Enterprise App Modernization.
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$5,000+$25 - $49 / hr50 - 249Cyberjaya, Malaysia
Services provided
Custom software development firm Esolutions Webbers is headquartered in Cyberjaya, Malaysia. The team specializes in Custom Software Development and Web Development.
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UndisclosedUndisclosed50 - 249Kolkata, India
Services provided
Founded in 2016, AOTWO Web & Technology Pvt Ltd is an Enterprise App Modernization company. The firm offers Enterprise App Modernization and Conversion Optimization.
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$5,000+$100 - $149 / hr50 - 249
Services provided
Tresbu Technologies, a custom software development company, was launched in 2011. The firm specializes in Custom Software Development and Enterprise App Modernization, and is midsize.
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$1,000+< $25 / hr50 - 249Noida, India
Services provided
Established in 2018, Pratham Vision, a midsize app development firm, is based in Noida, India. Their team offers Mobile App Development and E-Commerce Development.
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$5,000+< $25 / hr50 - 249Pittsfield, MA
Services provided
Xonier technologies Inc. Is a Digital Strategy company. The Pittsfield, Massachusetts-based agency specializes in Digital Strategy and Mobile & App Marketing.
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$25,000+$50 - $99 / hr50 - 249İstanbul, Türkiye
Services provided
Loodos Technology is a İstanbul, Türkiye-based application development company. They focus on Mobile App Development and Artificial Intelligence.
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$250,000+$100 - $149 / hr50 - 249Chicago, IL
Services provided
Headquartered in Chicago, Illinois, ForceIQ is a midsize cloud consulting & SI company. The team specializes in cloud consulting & SI and CRM consulting and SI.
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$10,000+$300+ / hr50 - 249Marston Green, England
Services provided
Software development company Jumar Technology was founded in 1999. The midsize team focuses on Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed50 - 249Mérida, Mexico
Services provided
Kwan Tecnología is an IT staff augmentation company launched in 2010. In Mérida, Mexico, the team focuses on IT staff augmentation and Custom Software Development.
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$10,000+$200 - $300 / hr50 - 249Chennai, India
Services provided
Kaladi Consulting Services is a midsize ERP consulting and SI company based in Chennai, India. Their services include ERP consulting and SI and IT managed services.
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$1,000+$50 - $99 / hr50 - 249Toronto, Canada
Services provided
X2x eCommerce is a CRM consulting and SI company. The midsize Toronto, Canada-based team focuses on CRM consulting and SI and ERP consulting and SI. The firm was established in 2015.
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$5,000+$25 - $49 / hr50 - 249Noida, India
Services provided
Glorious Insight Pvt Ltd is a mobile app development company. Based in Noida, India, their midsize team provides Mobile App Development and IoT development. The firm was launched in 2017.
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$50,000+$25 - $49 / hr50 - 249Ljubljana, Slovenia
Services provided
Ascalab Ltd is a software development company located in Ljubljana, Slovenia. The team offers Custom Software Development and Web Development.
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Undisclosed$50 - $99 / hr50 - 249CABA, Argentina
Services provided
Based in CABA, Argentina, OpenDev Pro is a midsize IT staff augmentation company. The team offers IT staff augmentation and Custom Software Development.
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UndisclosedUndisclosed50 - 249
Services provided
Established in 2015, ADTECH Corp., a midsize ERP consulting and SI company, is located in and Nanakaramguda, India. Their services include ERP consulting and SI and cloud consulting & SI.
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$1,000+< $25 / hr50 - 249Kolkata, India
Services provided
Custom software development firm Sigilo Private Limited is located in Kolkata, India. They specialize in Custom Software Development and BI & big data consulting & SI and were established in 2021.
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$5,000+$25 - $49 / hr50 - 249Pune, India
Services provided
BLUEBENZ DIGITIZATIONS is a midsize business intelligence company. They specialize in BI & big data consulting & SI and cloud consulting & SI and were established in 2016.
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$5,000+$25 - $49 / hr50 - 249Bengaluru, India
Services provided
Advertising company neoDesynz offers Advertising and Branding. They were launched in 2002.
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$1,000+$50 - $99 / hr50 - 249New York, NY
Services provided
Web design agency Softwaric is based in New York, New York. They focus on Web Design and UX/UI Design and were established in 2019.
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UndisclosedUndisclosed50 - 249Chennai, India
Services provided
Brimma Tech, Inc. Is an UX design agency. They offer UX/UI Design and cloud consulting & SI and were established in 2016.
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UndisclosedUndisclosed50 - 249San Jose, CA
Services provided
Established in 1980, Edvenswa Enterprises is a midsize mobile app development company. Their team offers Mobile App Development and Robotics Process Automation.
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$1,000+< $25 / hr50 - 249Nottingham, England
Services provided
Mita.ai is an IT managed services company. The Nottingham, England-based firm was launched in 2019. Their team provides IT managed services and IT staff augmentation.
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$5,000+$25 - $49 / hr50 - 249Cremorne, Australia
Services provided
Swivel Tech - Australia is an IT staff augmentation company. Launched in 2019, the team provides IT staff augmentation and Application Testing.
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$50,000+$200 - $300 / hr50 - 249
Services provided
Founded in 2013, NCINGA is an Application Testing company. The firm provides Application Testing and Other Application Development, and is midsize.
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$25,000+$150 - $199 / hr2 - 9
Services provided
Integrallis is a -based business intelligence company. They specialize in BI & big data consulting & SI and E-Commerce Development and were launched in 2002.
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$50,000+Undisclosed2 - 9Middleburg, VA
Services provided
In Middleburg, Virginia, Ship Shape Consulting is a software development company. They offer Custom Software Development and Other Application Development and were established in 2017.
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$10,000+$25 - $49 / hr10 - 49
Services provided
Custom software development company Guava Trees Softech Pvt. Ltd. Was established in 2021. The small team specializes in Custom Software Development and Web Development.
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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
36.7/40.019/20 Reviews9.9/10 Clients & Experience7.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 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
35.4/40.017.4/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
45% Enterprise App Modernization55% 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 -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$10,000+$50 - $99 / hr1,000 - 9,999Warszawa, Poland
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 - 9,999Atlanta, GA
Ability to deliver
37.4/40.017.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
34.5/40.017.2/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
38/40.018.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$150 - $199 / hr50 - 249Montréal, Canada
Ability to deliver
37.9/40.018.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$50 - $99 / hr50 - 249Rybnik, Poland
Ability to deliver
35.7/40.017.8/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
30% Enterprise App Modernization70% 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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.5/40.018.4/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$25 - $49 / hr250 - 999Stuttgart, Germany
Ability to deliver
38.4/40.018.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Lakewood, CO
Ability to deliver
39.4/40.019.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$1,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
37.3/40.018.4/20 Reviews9.6/10 Clients & Experience9.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr50 - 249Belfast, Northern Ireland
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$25 - $49 / hr50 - 249Melbourne, Australia
Ability to deliver
32.9/40.016.4/20 Reviews8.4/10 Clients & Experience8.1/10 Market PresenceService focus
40% Enterprise App Modernization60% 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 -
$25,000+$50 - $99 / hr250 - 999Warszawa, Poland
Ability to deliver
34.6/40.016/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$250,000+$50 - $99 / hr250 - 999Broomfield, CO
Ability to deliver
37.5/40.017.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Enterprise App Modernization90% Other
Top App Modernization Agencies
App modernization companies upgrade, refactor, or re-platform legacy software so it performs like a modern, cloud-ready application. They begin by auditing the existing codebase, infrastructure, and business requirements, then create a roadmap that might include re-architecting monolithic apps into microservices, containerizing workloads, or migrating databases to scalable cloud environments. Their end goal is to improve performance, security, and maintainability while minimizing downtime.
Most firms deliver a mix of strategic and technical services, such as:
- Legacy code assessment and technical debt analysis
- Re-platforming (e.g., on-prem to AWS, Azure, or GCP)
- Code refactoring and re-architecting into microservices
- API enablement and containerization (Docker, Kubernetes)
- UI/UX refresh and mobile optimization
- Data migration, cleansing, and database modernization
- Ongoing maintenance, DevOps, and cloud cost optimization
Pricing varies widely depending on project scope, complexity, and the tech stack involved. Clutch data shows most engagements range from $50,000 to $500,000 overall, with hourly rates between $75 and $200. Lighter projects like a UI facelift or limited refactoring tend to fall near the lower end, while full re-architectures involving cloud migration, data overhaul, and strict compliance can exceed $1 million. Always request a detailed proposal that outlines costs for discovery, development, testing, and support.
When choosing the best right app modernization for your business, consider these:
- Review expertise: Look for case studies that mirror your tech stack (Java, .NET, PHP) and industry compliance needs.
- Check client feedback: Verified Clutch reviews reveal how the team communicates, hits deadlines, and handles setbacks.
- Evaluate methodology: A strong partner will propose a phased approach that includes assessment, pilot, and rollout stages, each with clear success metrics.
- Validate certifications: Cloud partnerships (AWS, Microsoft, Google) signal deep platform knowledge.
- Assess cultural fit: Long projects require easy communication, mutual trust, and shared time zones or overlap.
These are some of the red flags that you should watch for when hiring an app modernization company:
- Guaranteed timelines before an audit: Accurate estimates require a code and infrastructure review.
- Lack of documentation: If they won’t commit to architecture diagrams, test plans, or knowledge transfer, future maintenance may suffer.
- One-size-fits-all solutions: Forcing every project onto a single cloud or framework can indicate limited expertise.
- Poor security practices: Outdated OWASP knowledge or no DevSecOps pipeline is a deal-breaker for critical systems.
- Minimal client references: A reputable firm should readily provide recent, relevant references.
Here are some questions you can ask app modernization companies before hiring them:
- Which modernization strategies (rehost, refactor, re-architect) do you recommend for our stack, and why?
- Can you share success metrics from similar projects—e.g., performance gains or cost reductions?
- What is your approach to minimizing downtime during migration?
- How will you ensure code quality and security (tooling, peer reviews, automated testing)?
- What support and knowledge-transfer do you provide after launch?
- How do you handle scope changes and unforeseen legacy issues?
Partnering with specialists accelerates time-to-value. Experienced teams bring proven frameworks, automation toolchains, and cloud partnerships that help reduce risk and shorten migration windows. Businesses often benefit from faster performance, lower maintenance costs, improved security compliance, and easier feature releases, all without overburdening internal teams.
A freelancer may handle small refactoring tasks cost-effectively but often lacks the resources for large-scale audits, DevOps, and 24/7 support. Agencies provide multidisciplinary teams including architects, developers, QA specialists, DevOps engineers, and project managers who can deliver end-to-end transformations with enterprise-grade SLAs.