Top Application Modernization Services
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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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$1,000+$50 - $99 / hr50 - 249Lisboa, Portugal
Services provided
Xpand IT is a business intelligence company. The midsize Lisboa, Portugal-based team focuses on BI & big data consulting & SI and Enterprise App Modernization. The company was established in 2003.
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$5,000+$100 - $149 / hr50 - 249
Services provided
10th Magnitude, an IT managed services company, is based in Chicago, Illinois and Dallas, Texas. They focus on IT managed services and Enterprise App Modernization.
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$10,000+$100 - $149 / hr50 - 249Beinasco, Italy
Services provided
Soft-in SRL, a software development company, was established in 1988. The agency specializes in Custom Software Development and Enterprise App Modernization, and is midsize.
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$10,000+$150 - $199 / hr50 - 249Hanoi, Vietnam
Services provided
VietSoftware International is a custom software development company. Located in Hanoi, Vietnam, the team provides Custom Software Development and ECM consulting and SI.
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UndisclosedUndisclosed50 - 249Panamá, Panama
Services provided
Solusoft Panama is an Enterprise App Modernization company. Located in Panamá, Panama, the agency provides Enterprise App Modernization and BI & big data consulting & SI.
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$1,000+$25 - $49 / hr50 - 249Shanghai, China
Services provided
Adups is an IT managed services company. The Shanghai, China-based firm was launched in 2012. Their services include IT managed services and IoT development.
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UndisclosedUndisclosed50 - 249
Services provided
PDMS UK Ltd., a custom software development firm, was founded in 1993. The firm offers Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed1,000 - 9,999San Antonio, TX
Services provided
Sirius Computer Solutions, an IT strategy consulting company, provides IT strategy consulting and Blockchain. The agency is in San Antonio, Texas.
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$1,000+Undisclosed50 - 249Singapore
Services provided
TurnKey Lender is an Enterprise App Modernization company. Established in 2014, the team focuses on Enterprise App Modernization and Artificial Intelligence. The firm is located in Singapore.
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UndisclosedUndisclosed1,000 - 9,999Tullahoma, TN
Services provided
GP Strategies Corporation is a Marketing Strategy company. They were established in 1966 and specialize in Marketing Strategy and Digital Strategy.
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UndisclosedUndisclosed50 - 249Alexandria, VA
Services provided
CoreSys Consulting is a software development company. Established in 1998, the team offers Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed50 - 249Bogotá, Colombia
Services provided
Software development company Modusoftware is based in Bogotá, Colombia. The team specializes in Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed50 - 249Reston, VA
Services provided
Intelligent Waves LLC is a Cybersecurity company. The team focuses on Cybersecurity and Custom Software Development, and the firm is headquartered in Reston, Virginia.
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UndisclosedUndisclosed50 - 249Bellevue, NE
Services provided
Custom software development company Calvert Systems was established in 2003. The team specializes in Custom Software Development and Enterprise App Modernization and is in Bellevue, Nebraska.
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UndisclosedUndisclosed50 - 249Baltimore, MD
Services provided
Sparksoft Corporation is a software development company. They were launched in 2004, and their services include Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed50 - 249Springfield, VA
Services provided
Interactive Government Holdings, Inc., an Application Management & Support company, was founded in 2006. The team focuses on Application Management & Support and Custom Software Development.
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UndisclosedUndisclosed50 - 249Rockville, MD
Services provided
Founded in 1998, Orizon, Inc. Is an Enterprise App Modernization company. The team offers Enterprise App Modernization and BI & big data consulting & SI and is based in Rockville, Maryland.
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UndisclosedUndisclosed50 - 249Houston, TX
Services provided
LZ Technology, Inc. Is an artificial intelligence firm. The Houston, Texas-based company provides Artificial Intelligence and IT managed services.
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UndisclosedUndisclosed50 - 249Herndon, VA
Services provided
I-Link Solutions is a midsize Enterprise App Modernization company. They specialize in Enterprise App Modernization and BI & big data consulting & SI and were launched in 2002.
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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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UndisclosedUndisclosed50 - 249Alpharetta, GA
Services provided
Custom software development company Candor Technology Inc. Was founded in 2018. The team offers Custom Software Development and Application Management & Support.
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UndisclosedUndisclosed50 - 249Helsinki, Finland
Services provided
Cybersecurity company ONEiO is based in Helsinki, Finland and London, England. They specialize in Cybersecurity and IT managed services.
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UndisclosedUndisclosed50 - 249Camden, DE
Services provided
AntStack is a web design company. The Camden, Delaware-based team offers Web Design and UX/UI Design.
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$5,000+$100 - $149 / hr50 - 249
Services provided
Established in 2023, Digital Experience Group (DXG) is a Logo company. The team offers Logo and Custom Software Development and is in.
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UndisclosedUndisclosed50 - 249West Palm Beach, FL
Services provided
SHIFT3 LLC is an application development firm. They focus on Mobile App Development and IT strategy consulting and were launched in 2004.
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UndisclosedUndisclosed50 - 249Claymont, DE
Services provided
Icanio Technologies Inc. Is a web development firm. Their midsize team is headquartered in Claymont, Delaware. Their services include Web Development and Mobile App Development.
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UndisclosedUndisclosed50 - 249San Francisco, CA
Services provided
SiliconMint is a San Francisco, California-based software development firm. Launched in 2012, the team focuses on Custom Software Development and Web Development.
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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.