Top Application Modernization Services
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$5,000+< $25 / hr10 - 49
Services provided
Small software development firm Alimcosoft, is based in Islamabad, Pakistan. Their services include Custom Software Development and Web Development.
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$1,000+$50 - $99 / hr10 - 49
Services provided
Cuetech Solutions is a website development firm founded in 2021. The team specializes in Web Development and E-Commerce Development.
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$25,000+$100 - $149 / hr10 - 49
Services provided
Elevate Labs is a small custom software development company established in 2019. Their team focuses on Custom Software Development and Artificial Intelligence.
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UndisclosedUndisclosed10 - 49
Services provided
Artificial intelligence development company Sereno is located in Mumbai, India and Bengaluru, India. They focus on Artificial Intelligence and AI Consulting and were established in 2021.
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$1,000+$25 - $49 / hr10 - 49
Services provided
Software development company ONAS SOFTWARE PRIVATE LIMITED is located in Chennai, India. The team offers Custom Software Development and Web Development.
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UndisclosedUndisclosed10 - 49
Services provided
Avieron Tech Private Limited is a Blockchain company established in 2021. The team specializes in Blockchain and Web Design and is headquartered in New Delhi, India.
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$5,000+$25 - $49 / hr10 - 49
Services provided
PIENEXT is a web development company. Founded in 2024, the company is based in Buenos Aires, Argentina. Their team focuses on Web Development and Mobile App Development.
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$1,000+< $25 / hr10 - 49Rajkot, India
Services provided
VictaSoft LLP is a small app development firm founded in 2015. Their team focuses on Mobile App Development and Web Development.
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$10,000+$25 - $49 / hr10 - 49Thane, India
Services provided
GreyScript Technologies Pvt Ltd is a custom software development firm established in 2020. The firm focuses on Custom Software Development and Mobile App Development, and is small.
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UndisclosedUndisclosed10 - 49Mumbai, India
Services provided
Launched in 2025, Arutis Technologies is a software development firm. The team focuses on Custom Software Development and Web Development.
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$5,000+< $25 / hr10 - 49
Services provided
IDHYHA CREATIVES & TECHNOLOGIES PVT LTD is an AI Agents company. They are headquartered in Jaipur, India and have small team. They provide AI Agents and Artificial Intelligence.
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$10,000+$50 - $99 / hr10 - 49Burnley, England
Services provided
TopFlight Digital is a software development company. The agency is located in Burnley, England and London, England. Their team specializes in Custom Software Development and API Development.
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$1,000+Undisclosed10 - 49
Services provided
Scubafy Solutions is a software development firm. Their team is located in singapore, Singapore and provides Custom Software Development and Web Development.
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$250,000+$100 - $149 / hr10 - 49Palatka, FL
Services provided
Opseva is a Cybersecurity company. They provide Cybersecurity and IT managed services and were established in 2025.
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$1,000+< $25 / hr10 - 49
Services provided
Custom software development company Craftelligence is located in Jaipur, India. Their services include Custom Software Development and Web Development.
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$5,000+$50 - $99 / hr10 - 49
Services provided
In Wilmington, Delaware and Noida, India, Comet Studio is a small IT strategy consulting company. Their services include IT strategy consulting and Custom Software Development.
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$1,000+< $25 / hr10 - 49
Services provided
Based in Ahmedabad, India, AxenorSuite Consultancy Services LLP is a custom software development company. The team focuses on Custom Software Development and Enterprise App Modernization.
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$10,000+Undisclosed10 - 49
Services provided
Founded in 2020, Koroutine is a small Exeter, England-based app development firm. Their team focuses on Mobile App Development and Web Development.
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UndisclosedUndisclosed10 - 49Sharjah, United Arab Emirates
Services provided
IIIVP LLC, a website development company, is in Sharjah, United Arab Emirates. They specialize in Web Development and Custom Software Development and were established in 2023.
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$10,000+$50 - $99 / hr10 - 49Jaipur, India
Services provided
Founded in 2025, CodeVira Labs Pvt. Ltd. Is a cloud consulting & SI company. Their services include cloud consulting & SI and DevOps Managed Services.
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$5,000+$50 - $99 / hr10 - 49
Services provided
Founded in 2009, LathranSoft is a web development company. Their team offers Web Development and Mobile App Development.
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$5,000+Undisclosed10 - 49
Services provided
Cloud consulting & SI company Bayden Technologies focuses on cloud consulting & SI and ERP consulting and SI. They were established in 2026.
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$1,000+Undisclosed10 - 49Chennai, India
Services provided
7s IQ Private Limited is a Chennai, India-based social media marketing firm. They provide Social Media Marketing and Search Engine Optimization and were founded in 2025.
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$1,000+$25 - $49 / hr10 - 49
Services provided
KamSathiHub TechLabs LLP, a software development firm, was established in 2026. The team specializes in Custom Software Development and Web Development and is based in Gorakhpur, India.
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$10,000+< $25 / hr10 - 49
Services provided
Software development firm DeccanLogic Private Limited focuses on Custom Software Development and IT staff augmentation. They were founded in 2018.
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$1,000+$50 - $99 / hr2 - 9
Services provided
See all 1 projectsZylon Software offers custom website design and development services, including front-end and back-end solutions with a focus on brand marketing and automation. Overall feedback highlights their professionalism, transparent communication, and ability to deliver projects on schedule. The reviews emphasize the company's strong client investment and effective use of technologies like VueJS and JavaScript.
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$25,000+$25 - $49 / hr50 - 249
Services provided
Established in 2003, Softage LLC, a midsize software development company, is located in Wilmington, Delaware. Their team focuses on Custom Software Development and Web Development.
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$5,000+$50 - $99 / hrFreelancerJosipdol, Croatia
Services provided
Small software development company Butterfly Design, is headquartered in Josipdol, Croatia. Their services include Custom Software Development and Enterprise App Modernization.
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$25,000+$50 - $99 / hr2 - 9Palo Alto, CA
Services provided
OpSky is an IT managed services company located in Palo Alto, California. Founded in 2025, the team focuses on IT managed services and IT strategy consulting.
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$1,000+$100 - $149 / hrFreelancer
Services provided
Drizzle Consulting is a cloud consulting & SI company. The Plano, Texas-based team specializes in cloud consulting & SI and IT strategy consulting.
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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
39.7/40.019.8/20 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 -
$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 -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
38.4/40.018.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
33.7/40.016.4/20 Reviews10/10 Clients & Experience7.3/10 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 - 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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.017.8/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Toronto, Canada
Ability to deliver
37.9/40.020/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
15% Enterprise App Modernization85% 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 -
$100,000+$25 - $49 / hr50 - 249Melbourne, Australia
Ability to deliver
32.7/40.016.2/20 Reviews8.4/10 Clients & Experience8.1/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$25,000+$50 - $99 / hr50 - 249Rybnik, Poland
Ability to deliver
34.7/40.016.8/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
30% Enterprise App Modernization70% 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.