Top Application Modernization Services
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$250,000+< $25 / hr2 - 9
Services provided
Software development company TechIndies is located in Junagadh, India. They provide Custom Software Development and Web Development and were launched in 2025.
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$1,000+< $25 / hr2 - 9
Services provided
Paperfrogs is an artificial intelligence firm founded in 2025. The agency offers Artificial Intelligence and Custom Software Development.
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UndisclosedUndisclosed2 - 9
Services provided
EngineersTech is a software development firm. Their small team of employees is based in Dhaka, Bangladesh. Their team focuses on Custom Software Development and Web Development.
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$5,000+$50 - $99 / hr2 - 9Bridge, England
Services provided
Located in Bridge, England, Tectonix Digital Agency is a mobile application development company. They focus on Mobile App Development and Web Development.
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$5,000+$25 - $49 / hr2 - 9Vrčin, Serbia
Services provided
Dev Harbor is a Vrčin, Serbia-based software development company. They provide Custom Software Development and Web Development and were established in 2020.
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$1,000+< $25 / hr2 - 9
Services provided
Vigisolvo Private Limited, an ERP consulting and SI company, specialize in ERP consulting and SI and CRM consulting and SI. They were founded in 2025.
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UndisclosedUndisclosed2 - 9Ciudad de Guatemala, Guatemala
Services provided
Nabenik is a software development firm. Launched in 2014, their team offers Custom Software Development and Enterprise App Modernization.
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$1,000+$200 - $300 / hr10 - 49Waltham, MA
Services provided
See all 5 projectsPractical Computer Applications (PCApps) is a software modernization company specializing in Enterprise Application Modernization. With a 100% positive feedback rate, they are praised for their flawless delivery, exceptional team communication, and adherence to project timelines. Reviewers highlight their effective conversion of legacy systems, underscoring their competence in digital transformation and IT modernization.
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$10,000+$50 - $99 / hr10 - 49Budapest, Hungary
Services provided
Small Enterprise App Modernization company Wanari, is in Budapest, Hungary. Their services include Enterprise App Modernization and Mobile App Development.
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$5,000+$100 - $149 / hr10 - 49Wan Chai, Hong Kong
Services provided
WestcomZivo Limited is an Enterprise App Modernization company. Based in Wan Chai, Hong Kong, the agency focuses on Enterprise App Modernization and Web Development.
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$1,000+$25 - $49 / hr10 - 49Beijing, China
Services provided
Infoquick Global Connection, an IT managed services company, was established in 2014. The firm focuses on IT managed services and Enterprise App Modernization, and is small.
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UndisclosedUndisclosed10 - 49Beavercreek, OH
Services provided
Small IT managed services company TM Capture Services, LLC - Macalogic, is headquartered in Beavercreek, Ohio. Their services include IT managed services and Enterprise App Modernization.
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UndisclosedUndisclosed10 - 49Manassas, VA
Services provided
Systems Enginuity, Inc. Is a custom software development company. They were launched in 2004 and offer Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed10 - 49Orange, CA
Services provided
Based in Orange, California, Omni Integration is an IT managed services company. The team offers IT managed services and Enterprise App Modernization.
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UndisclosedUndisclosed10 - 49Kuala Lumpur, Malaysia
Services provided
Small Enterprise App Modernization company Reliable Business Technologies Sdn Bhd, is in Kuala Lumpur, Malaysia. Their services include Enterprise App Modernization and Custom Software Development.
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UndisclosedUndisclosedFreelancerLahore, Pakistan
Services provided
Small custom software development firm Zeeaam Technologies, is headquartered in Lahore, Pakistan. The team provides Custom Software Development and Mobile App Development.
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$5,000+$100 - $149 / hr50 - 249Toronto, Canada
Services provided
Navantis is a software development company. They were founded in 1998, and their services include Custom Software Development and Enterprise App Modernization.
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$10,000+$100 - $149 / hr10,000+
Services provided
Located in Petaling Jaya, Malaysia, Aegis Global is a Back Office Outsourcing company. Founded in 1983, the team specializes in Back Office Outsourcing and Finance & Accounting Outsourcing (FAO).
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UndisclosedUndisclosed50 - 249Cheyenne, WY
Services provided
In Cheyenne, Wyoming, Green House Data is an Enterprise App Modernization company. They offer Enterprise App Modernization and cloud consulting & SI.
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$1,000+< $25 / hrFreelancerRoorkee, India
Services provided
Sag system is a mobile app development company founded in 2021. The team offers Mobile App Development and Other Application Development.
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$50,000+$100 - $149 / hrFreelancerIași, Romania
Services provided
John.Cloud is a website development company. Their small team is located in Iași, Romania and focuses on Web Development and IT strategy consulting. The agency was launched in 2000.
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$5,000+< $25 / hrFreelancerSahibzada Ajit Singh Nagar, India
Services provided
Established in 2020, MadApp Technologies is a small Sahibzada Ajit Singh Nagar, India-based mobile application development company. Their team provides Mobile App Development and Web Development.
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$5,000+$200 - $300 / hrFreelancerLiberty, MO
Services provided
Blue Sprout Consulting, an IT strategy consulting company, was founded in 2024. The agency focuses on IT strategy consulting and Product Design, and is small.
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$5,000+$150 - $199 / hrFreelancerNew York, NY
Services provided
Magaluk Dev is a custom software development firm based in New York, New York. Their services include Custom Software Development and IoT development.
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UndisclosedUndisclosed50 - 249San Antonio, TX
Services provided
Diligent Consulting Inc is a Cybersecurity company. Their team is in San Antonio, Texas. The company focuses on Cybersecurity and Custom Software Development.
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UndisclosedUndisclosed50 - 249Indianapolis, IN
Services provided
Founded in 2018, NapCloud is a PPC agency. Based in Indianapolis, Indiana, the team focuses on Pay Per Click and Web Development.
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$1,000+$150 - $199 / hrFreelancerAnaheim, CA
Services provided
Founded in 2014, socialomical is a small Anaheim, California-based branding agency. Their team specializes in Branding and Product Design.
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$1,000+< $25 / hrFreelancer
Services provided
Established in 2024, Devopixel is a software development firm. Headquartered in Jakarta, Indonesia, the team provides Custom Software Development and Market Research.
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$5,000+$100 - $149 / hrFreelancerRottweil, Germany
Services provided
IntegrIT Solutions is a small software development company. They offer Custom Software Development and Mobile App Development and were established in 2019.
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UndisclosedUndisclosed250 - 999Charlotte, NC
Services provided
Cheetah Agency is a. The team provides and is in.
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List of the Top 15 Legacy Modernization Services
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$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
36.9/40.019.2/20 Reviews9.9/10 Clients & Experience7.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$5,000+< $25 / hr1,000 - 9,999San Jose, CA
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
39.7/40.020/20 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
35.2/40.017.2/20 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 - 9,999Atlanta, GA
Ability to deliver
37.4/40.017.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 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 -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
34.1/40.016.8/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
$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 -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
35.1/40.018/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$50 - $99 / hr50 - 249Rybnik, Poland
Ability to deliver
35.1/40.017.2/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$25 - $49 / hr250 - 999Stuttgart, Germany
Ability to deliver
37.9/40.018.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.9/40.018/20 Reviews9.6/10 Clients & Experience9.3/10 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 -
$25,000+$50 - $99 / hr50 - 249Prague, Czech Republic
Ability to deliver
38.5/40.019.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
30.4/40.017.4/20 Reviews8.2/10 Clients & Experience4.8/10 Market PresenceService focus
60% Enterprise App Modernization40% 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.