Top Application Modernization Services
-
$1,000+$25 - $49 / hr10 - 49Pune, India
Services provided
See all 4 projectsAppristine Technologies Pvt. Ltd. is a versatile software development company offering services such as Progressive Web Apps, mobile apps, and complex Magento website solutions. The company is renowned for its strong communication and flexibility, impressing clients with responsiveness and a willingness to adapt. While 100% timely delivery can be a challenge, clients appreciate their patience and attention to detail, with 100% of reviews noting their dedication and helpfulness.
-
$5,000+$100 - $149 / hr10 - 49Aldermaston, England
Services provided
In Aldermaston, England, Voyager Networks is an IT managed services company. Their services include IT managed services and Enterprise App Modernization.
Read more -
$10,000+$150 - $199 / hr10 - 49Edinburgh, Scotland
Services provided
Escrivo Internet Consulting is a SEO company. They are in Edinburgh, Scotland and have small team. They provide Search Engine Optimization and cloud consulting & SI.
Read more -
$10,000+$150 - $199 / hr10 - 49Reykjavík, Iceland
Services provided
Kvikna is an Enterprise App Modernization company. The team is headquartered in Reykjavík, Iceland, and their services include Enterprise App Modernization and UX/UI Design.
Read more -
UndisclosedUndisclosed10 - 49Austin, TX
Services provided
Accomplice LLC is an Enterprise App Modernization company headquartered in Austin, Texas. The team focuses on Enterprise App Modernization and UX/UI Design.
Read more -
UndisclosedUndisclosed10 - 49Lake Forest, CA
Services provided
Enterprise App Modernization company Asparian was established in 2004. The firm provides Enterprise App Modernization and cloud consulting & SI.
Read more -
UndisclosedUndisclosed10 - 49Fairfax, VA
Services provided
BuddoBot Inc. Is a Cybersecurity company. They are in Fairfax, Virginia, and their services include Cybersecurity and Enterprise App Modernization.
Read more -
UndisclosedUndisclosed10 - 49Brambleton, VA
Services provided
Vivsoft Technologies LLC, a small Enterprise App Modernization company, is based in Brambleton, Virginia. The team focuses on Enterprise App Modernization and Artificial Intelligence.
Read more -
UndisclosedUndisclosed10 - 49Swansea, IL
Services provided
Dino Consulting is a software development firm located in Swansea, Illinois. They provide Custom Software Development and Enterprise App Modernization and were founded in 2014.
Read more -
UndisclosedUndisclosed10 - 49Calverton, MD
Services provided
E-INFOSOL LLC is a Cybersecurity company. Headquartered in Calverton, Maryland, the team provides Cybersecurity and Custom Software Development.
Read more -
UndisclosedUndisclosed10 - 49Springfield, VA
Services provided
SecureTech360, LLC is a small Cybersecurity company launched in 2009. Their services include Cybersecurity and Enterprise App Modernization.
Read more -
UndisclosedUndisclosed10 - 49Chesapeake, VA
Services provided
Assent Advisory Group is a Chesapeake, Virginia-based Cybersecurity company. Founded in 2017, the team focuses on Cybersecurity and Application Management & Support.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
Assertia Solutions, a custom software development company, was established in 2015. The company focuses on Custom Software Development and Enterprise App Modernization, and is small.
Read more -
UndisclosedUndisclosed10 - 49Deerfield, IL
Services provided
SCIGON is a Cybersecurity company. They provide Cybersecurity and Enterprise App Modernization and were established in 2008. The agency is based in Deerfield, Illinois.
Read more -
UndisclosedUndisclosed10 - 49Washington, DC
Services provided
Client First Technologies, LLC is an IT managed services company. The agency is based in Washington, District of Columbia. Their services include IT managed services and Enterprise App
Read more -
UndisclosedUndisclosed10 - 49Houston, TX
Services provided
Red Trident Inc is a Cybersecurity company. Established in 2014, the company is in Houston, Texas. Their services include Cybersecurity and Custom Software Development.
Read more -
UndisclosedUndisclosed10 - 49Yorktown, VA
Services provided
York & Whiting, LLC is an Enterprise App Modernization company. They offer Enterprise App Modernization and Artificial Intelligence and are located in Yorktown, Virginia.
Read more -
UndisclosedUndisclosed10 - 49Annapolis, MD
Services provided
Founded in 2012, CICONIX, LLC is an Enterprise App Modernization company. The agency provides Enterprise App Modernization and Application Management & Support.
Read more -
UndisclosedUndisclosed10 - 49San Diego, CA
Services provided
Titanium Cobra Solutions is a Business Consulting company. The San Diego, California-based firm offers Business Consulting and Application Management & Support.
Read more -
UndisclosedUndisclosed10 - 49Arlington, VA
Services provided
Innovative System Solutions Corporation is a Cybersecurity company. The small Arlington, Virginia-based team focuses on Cybersecurity and Business Consulting. The company was launched in 2003.
Read more -
UndisclosedUndisclosed10 - 49McLean, VA
Services provided
Betis Group is a software development firm. Founded in 1995, the team offers Custom Software Development and Enterprise App Modernization. The firm is located in McLean, Virginia.
Read more -
UndisclosedUndisclosed10 - 49Reston, VA
Services provided
Founded in 2010, rMantra Solutions Inc is a custom software development company. The team specializes in Custom Software Development and Cybersecurity.
Read more -
UndisclosedUndisclosed10 - 49Tallahassee, FL
Services provided
Software development company GeekSI is in Tallahassee, Florida. They focus on Custom Software Development and Enterprise App Modernization and were founded in 1998.
Read more -
UndisclosedUndisclosed10 - 49Clarksville, MD
Services provided
Established in 1998, Superior Solutions Inc. Is a custom software development firm. The small team specializes in Custom Software Development and IT strategy consulting.
Read more -
UndisclosedUndisclosed10 - 49Falls Church, VA
Services provided
Serry Systems Inc. Is a Falls Church, Virginia-based Enterprise App Modernization company. They offer Enterprise App Modernization and cloud consulting & SI and were launched in 2006.
Read more -
UndisclosedUndisclosed10 - 49Shanghai, China
Services provided
MW Solutions, Inc. Is an UX design company launched in 2010. The team specializes in UX/UI Design and Custom Software Development and is located in Shanghai, China.
Read more -
UndisclosedUndisclosed10 - 49Farmington Hills, MI
Services provided
Touchworld is an IT strategy consulting company. Headquartered in Farmington Hills, Michigan, the agency was launched in 1996. Their team focuses on IT strategy consulting and ERP consulting and SI.
Read more -
UndisclosedUndisclosed10 - 49Kolkata, India
Services provided
Cybersecurity company Lazot Technologies Pvt Ltd provides Cybersecurity and Custom Software Development. They were founded in 2020.
Read more -
UndisclosedUndisclosed10 - 49Weldon Spring, MO
Services provided
Small custom software development company IT Looking Glass LLC, is based in Weldon Spring, Missouri. Their services include Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Vienna, VA
Services provided
K2S | Koncepts2Solutions is an Application Testing company headquartered in Vienna, Virginia. The team specializes in Application Testing and Robotics Process Automation.
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 Legacy Modernization Services
-
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
38.5/40.019.4/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$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 - 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 / hr50 - 249Miami, FL
Ability to deliver
35/40.017/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
34.2/40.018.6/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% 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 -
$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 / hr1,000 - 9,999Kraków, 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
37.3/40.017.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
39.1/40.019.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.9/40.019/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
36.8/40.017.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
36.8/40.016.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$50,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
36/40.016.6/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
36.8/40.018/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Lakeville, MN
Ability to deliver
37/40.017.2/20 Reviews9.9/10 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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
38.3/40.019.2/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
33.3/40.016/20 Reviews10/10 Clients & Experience7.3/10 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 -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
35.1/40.016.8/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
36.5/40.016.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% 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
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.