Top Application Modernization Services
-
$25,000+$100 - $149 / hr10 - 49Omaha, NE
Services provided
DevObsessed is an IT staff augmentation company based in Omaha, Nebraska. Established in 2022, the team specializes in IT staff augmentation and Custom Software Development.
Read more -
$1,000+< $25 / hr10 - 49
Services provided
Defenzelite Private Limited is a software development company. Launched in 2017, their team specializes in Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Dubai, United Arab Emirates
Services provided
Accro is an IT strategy consulting company. The agency is located in Dubai, United Arab Emirates. Their services include IT strategy consulting and Mobile App Development.
Read more -
$10,000+Undisclosed10 - 49
Services provided
Accrets International Pte Ltd, an IT strategy consulting company, is headquartered in Singapore, Singapore. Their services include IT strategy consulting and cloud consulting & SI.
Read more -
$50,000+$150 - $199 / hr10 - 49Omaha, NE
Services provided
Fixation Web Consulting, LLC is a software development company. Launched in 2008, the team specializes in Custom Software Development and Web Development. The firm is based in Omaha, Nebraska.
Read more -
$10,000+$25 - $49 / hr250 - 999Wolverhampton, England
Services provided
Founded in 2019, Kaswans Technologies is a mobile application development company. The firm specializes in Mobile App Development and E-Commerce Development.
Read more -
Undisclosed$25 - $49 / hr2 - 9
Services provided
See all 1 projectsSmartNestSolution specializes in digitalization and refactoring of financial services applications, focusing on developing and optimizing REST APIs using .NET6 for microservices architectures. Reviews highlight their effective project management, budget-friendly pricing, and strong communication. However, there is a suggestion for expanding their expertise throughout the entire production cycle.
-
$25,000+$200 - $300 / hr10 - 49Matamata, New Zealand
Services provided
LuminateOne is a software development firm. They provide Custom Software Development and E-Commerce Development and are in Matamata, New Zealand.
Read more -
$25,000+$25 - $49 / hr10 - 49Phoenix, AZ
Services provided
Spark+ Technologies is a Blockchain company. They are based in Goa, India and Phoenix, Arizona. Their team provides Blockchain and Custom Software Development.
Read more -
$10,000+$25 - $49 / hr50 - 249Chennai, India
Services provided
See all 1 projectsTeam Tweaks Technologies Pvt. Ltd specializes in mobile app development for Android, iOS, and Flutter. Clients consistently praise their experienced and talented developers, effective project management, and strong focus on client satisfaction. However, some reviews suggest improvements in communication, documentation, and testing practices. Overall, Team Tweaks is highly recommended for their expertise and commitment to delivering quality projects.
-
$25,000+< $25 / hr50 - 249Sassari, Italy
Services provided
Abinsula is a custom software development firm. The midsize Sassari, Italy-based team offers Custom Software Development and IoT development. The agency was founded in 2012.
Read more -
UndisclosedUndisclosed50 - 249Calgary, Canada
Services provided
Vista Projects is an other IT consulting and SI company. They are in Calgary, Canada and Houston, Texas and have midsize team. They provide other IT consulting and SI and Business Consulting.
Read more -
$50,000+$150 - $199 / hr50 - 249Mayfield Heights, OH
Services provided
Paragon, a Market Research company, is headquartered in Mayfield Heights, Ohio. They focus on Market Research and Digital Strategy and were founded in 1993.
Read more -
$25,000+$25 - $49 / hr2 - 9
Services provided
KODO 360 S.L., a custom software development company, is headquartered in Firgas, Spain. They focus on Custom Software Development and Web Development.
Read more -
$50,000+$100 - $149 / hr2 - 9Norfolk, VA
Services provided
Langa (Out of Business) is a custom software development company headquartered in Norfolk, Virginia. The team focuses on Custom Software Development and Web Development.
Read more -
Undisclosed$25 - $49 / hr250 - 999Gandhinagar, India
Services provided
INTECH Creative Services Pvt Ltd is a midsize software development firm. They focus on Custom Software Development and ERP consulting and SI and were established in 2003.
Read more -
$1,000+Undisclosed250 - 999Amman, Jordan
Services provided
Aspire IT Services Partner is a midsize IT managed services company founded in 2002. Their team provides IT managed services and IT staff augmentation.
Read more -
$25,000+Undisclosed250 - 999Madurai, India
Services provided
Sri Mookambika Infosolutions PVT Ltd is an IT strategy consulting company. In Madurai, India and Chennai, India, the team offers IT strategy consulting and BI & big data consulting & SI.
Read more -
$10,000+Undisclosed250 - 999Udupi, India
Services provided
Niveus Solutions is a midsize Udupi, India-based cloud consulting & SI company. Their services include cloud consulting & SI and Artificial Intelligence.
Read more -
UndisclosedUndisclosed250 - 999Hyderabad, India
Services provided
Jayam Solutions is an ERP consulting and SI company. Launched in 2002, their team focuses on ERP consulting and SI and IT staff augmentation.
Read more -
$5,000+$50 - $99 / hr10 - 49
Services provided
BitScale Software, a custom software development company, was launched in 2017. The team specializes in Custom Software Development and Enterprise App Modernization.
Read more -
$1,000+< $25 / hr10 - 49Bengaluru, India
Services provided
Foscio is an Enterprise App Modernization company. Their small team is headquartered in Bengaluru, India and provides Enterprise App Modernization and UX/UI Design. The firm was launched in 2016.
Read more -
Undisclosed$150 - $199 / hr10 - 49Edmonton, Canada
Services provided
Located in Edmonton, Canada and Pickering, Canada, Akora Cloud Consulting is a small cloud consulting & SI company. The team offers cloud consulting & SI and Custom Software Development.
Read more -
$10,000+$25 - $49 / hr10 - 49
Services provided
OTTMaster is an Enterprise App Modernization company headquartered in Qing Dao Shi, China. They specialize in Enterprise App Modernization and Web Development and were launched in 2010.
Read more -
$10,000+Undisclosed10 - 49L'viv, Ukraine
Services provided
CONSOLID.AI is a Business Consulting company. Their small team of employees is located in L'viv, Ukraine. Their team focuses on Business Consulting and Logistics & Supply Chain Consulting.
Read more -
$50,000+$50 - $99 / hr10 - 49
Services provided
Cleo is a custom software development firm established in 2019. Their team specializes in Custom Software Development and Mobile App Development.
Read more -
$1,000+$25 - $49 / hr10 - 49Bhubaneswar, India
Services provided
ASSET MAGNETS is a software development company. The Bhubaneswar, India-based team offers Custom Software Development and Enterprise App Modernization.
Read more -
$10,000+< $25 / hr10 - 49Khoraj, India
Services provided
ESURGENT is an e-commerce development firm. Their team is in Khoraj, India. The agency focuses on E-Commerce Development and IT staff augmentation.
Read more -
$1,000+$25 - $49 / hr50 - 249
Services provided
See all 1 projectsOdata Solutions provides comprehensive services in ERP, HR, and CRM functions, with a strong focus on software modernization and application modernization. Customer feedback highlights their cost-effective, flexible ERP solutions and dedicated, timely support. Clients particularly appreciate their ability to manage retail business activities effectively through secure payment gateways and intelligent data synchronization.
-
$1,000+< $25 / hr50 - 249Chișinău, Moldova
Services provided
INDRIVO is a custom software development firm. They are based in Chișinău, Moldova and București, Romania and have midsize team. They provide Custom Software Development and Web Development.
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
-
$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.