Top Application Modernization Services
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$5,000+$50 - $99 / hr10 - 49New York, NY
Services provided
See all 1 projectsSoftescu is an enterprise technology partner that combines deep technical expertise with unwavering security standards to deliver exceptional digital solutions. Since 2008, we've been helping
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$50,000+$200 - $300 / hr10 - 49Carlsbad, CA
Services provided
Launched in 2000, RemedyOne, a small custom software development company, is in Carlsbad, California. Their services include Custom Software Development and Web Development.
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$5,000+$100 - $149 / hr10 - 49Tulsa, OK
Services provided
Seed Technologies is a small website development firm. Founded in 2004, the team offers Web Development and Custom Software Development.
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$5,000+$100 - $149 / hr2 - 9Tillsonburg, Canada
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Opid Technologies Incorporated is a Tillsonburg, Canada-based software development firm. The team provides Custom Software Development and Enterprise App Modernization.
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$5,000+$50 - $99 / hr2 - 9Varaždin, Croatia
Services provided
OmnifIT d.o.o., a custom software development company, was launched in 2020. The small team offers Custom Software Development and Enterprise App Modernization.
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$5,000+Undisclosed50 - 249Sheffield, England
Services provided
Nimble Approach is a midsize Digital Engineering company located in Sheffield, England and Leeds, England. Their services include Digital Engineering and Custom Software Development.
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$10,000+$25 - $49 / hr2 - 9Bengaluru, India
Services provided
TerexSoft LLP is a software development firm founded in 2024. The agency focuses on Custom Software Development and Application Management & Support.
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$5,000+$150 - $199 / hr10 - 49Windermere, FL
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Established in 2017, Persepta is a business intelligence company. Located in Windermere, Florida, the team focuses on BI & big data consulting & SI and cloud consulting & SI.
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$5,000+< $25 / hr1,000 - 9,999
Services provided
See all 2 projectsArionERP is a company specializing in ERP consulting and web development services. Reviews indicate a high level of customer satisfaction, with 100% positive feedback praising their cost-effective pricing, responsive communication, and alignment with client values. Notably, 50% of reviewers commend their significant expertise and convenience in project management, and no areas for improvement were identified as major issues.
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$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Services provided
See all 11 projectsSenvio is a software development company specializing in creating custom applications, particularly SaaS platforms, subscription management systems, and CRM modules. The feedback from reviews is overwhelmingly positive, with clients praising their excellent project management, adaptability, and deep understanding of business needs. Approximately 100% of reviewers highlight Senvio's flexibility and commitment to delivering high-quality results within budget and on time.
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$50,000+$50 - $99 / hr50 - 249Miami, FL
Services provided
See all 43 projectsDevox Software is a company specializing in Enterprise Application Modernization, known for its expertise in modernizing complex legacy systems. Their clients report a 40% improvement in system performance and highlight their effective project management and communication. Approximately 100% of reviewers express satisfaction with the seamless integration of modernized software solutions tailored to specific industry needs.
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$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
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See all 7 projectsCI&T is a comprehensive software development company known for its robust project management and proactive approach. Clients highlight their strength in agile methodologies, with 90% emphasizing their ability to meet deadlines and adapt quickly to complex systems. While some note areas for improvement in staff turnover, 80% of reviews praise their technical expertise and cooperative culture.
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$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
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See all 31 projectsSparq is a company specializing in data solutions and machine learning model implementation. Reviews indicate a strong alignment with client values and cost efficiency, with 100% of clients praising their professionalism and communication skills. Clients highlight Sparq's effective project management and timely delivery, with no negative feedback reported. Their ability to leverage existing platforms effectively without unnecessary complications is a notable strength.
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$100,000+$150 - $199 / hr50 - 249Southborough, MA
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See all 24 projectsAndPlus, An Ensono Company, specializes in platform development, systems integration, and app development, delivering high-quality and reliable solutions across various industries. The company is praised for its professional, systematic approach, with 100% of reviewers highlighting their impressive project management and technical expertise. While some clients noted higher costs compared to offshore options, the overall consensus is that AndPlus provides exceptional value and partner-like engagement.
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$50,000+$50 - $99 / hr250 - 999Hudson, OH
Services provided
See all 28 projectsTaazaa Inc. is a custom software development company specializing in creating integrated software solutions across various industries, including healthcare, property management, and transportation. Client feedback highlights their professionalism, timely delivery, and exceptional communication, leading to a 100% recommendation rate. Approximately 80% of reviews emphasize their strong project management and customer support, while their commitment to aligning with client values is consistently praised.
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$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
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See all 40 projectsTepia is a versatile app development company specializing in creating user-friendly mobile and web applications tailored to various industries. Their reviews consistently highlight outstanding project management, clear communication, and proactive problem-solving. An impressive 100% of reviews reflect positive client experiences with no identified areas for improvement, underscoring Tepia's professional expertise and dedication to delivering successful project outcomes.
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$25,000+$25 - $49 / hr250 - 999Lakeville, MN
Services provided
See all 63 projectsExcellent WebWorld is a versatile app development and IT solutions company, recognized for their comprehensive range of services including mobile and web app development, SEO, and system optimization. Across the reviews, 90% of clients highlight their high-quality deliverables, timely project management, and exceptional communication. However, around 30% suggest minor improvements in areas such as quality assurance and change management.
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$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
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See all 3 projectsEyzee is a dynamic IT company specializing in Enterprise Application Modernization and software modernization services. The reviews reflect a 100% positive sentiment, highlighting their exceptional client communication, punctuality, and flexibility in addressing customer needs, with all projects delivered efficiently and ahead of deadlines.
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UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Services provided
See all 17 projectsKMS Technology is a versatile software development and IT services firm known for its competitive value and high-quality deliverables. The company receives overwhelmingly positive feedback, with more than 90% of reviews highlighting their expertise, timely delivery, and effective communication. Clients consistently praise their comprehensive project management skills and ability to adapt to complex requirements, with many noting their proactive approach and dedication to fostering strong client relationships.
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$10,000+$25 - $49 / hr50 - 249Portland, OR
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See all 26 projectsDarwoft is an accomplished software development company specializing in AI, mobile and web applications, and cloud-based systems. Across their reviews, Darwoft is consistently praised for their strong project management, agile methodology, and ability to deliver on time and within budget. Approximately 85% of reviewers commend their professionalism and flexibility, with an emphasis on their capability to adapt to client needs and efficiently manage complex projects.
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$50,000+$50 - $99 / hr250 - 999Palo Alto, CA
Services provided
See all 4 projectsTuring is a company specializing in providing software development talent for enterprise app modernization projects. Reviews indicate a 100% positive feedback rate, highlighting their ability to deliver timely, high-quality services with seamless project management and a global pool of skilled developers. Clients appreciate their transparent pricing and dedicated customer support.
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$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
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See all 24 projectsGP Solutions is a software development company primarily focused on travel-oriented solutions, offering services such as ERP system development, custom application updates, and comprehensive web and API development. Across reviews, they are praised for their high-quality deliverables, effective communication, and adaptability, with approximately 92% of feedback highlighting their reliable project management and technical expertise. Reviewers consistently commend GP Solutions for their willingness to customize solutions and align with client values, although minor improvements in scalability and additional functionalities were noted.
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$25,000+$50 - $99 / hr50 - 249Kraków, Poland
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See all 18 projectsPragmatic Coders is a versatile software development company known for its expertise in building scalable platforms, MVPs, and integrating complex systems. Across various reviews, 95% of clients commend their cultural fit, proactive communication, and high-quality deliverables. Their agility and transparency were highlighted in 80% of the feedback, showcasing their ability to adapt and meet evolving client needs efficiently.
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$25,000+$50 - $99 / hr50 - 249Rybnik, Poland
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See all 14 projectsfireup.pro is a versatile software development company providing services in web and mobile application development, backend systems, and cloud computing implementation. Reviews consistently highlight their technical expertise, seamless integration with client teams, and ability to deliver projects on time, with over 90% of clients praising their commitment to understanding client needs and delivering high-quality results. Their project management style and proactive communication are frequently commended by clients.
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$25,000+$50 - $99 / hr250 - 999Warszawa, Poland
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See all 28 projectsAltkom Software & Consulting is a comprehensive IT services provider, specializing in software development, IT strategy, and security solutions. Across the reviews, 100% of clients highlight their expertise, professionalism, and effective communication. Clients commend their flexible, value-oriented approach and timely delivery, with no significant areas for improvement noted. Their ability to handle complex technical environments is repeatedly praised.
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$250,000+$50 - $99 / hr250 - 999Broomfield, CO
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See all 23 projectsGorilla Logic is a software development company specializing in custom software development, staff augmentation, and architectural consulting. The reviews highlight their technical expertise, responsiveness, and ability to integrate seamlessly with client teams. Approximately 100% of the feedback is positive, with clients praising their professional project management and the high caliber of their resources. Gorilla Logic is also commended for its cultural fit and strong communication skills across multiple projects.
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$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
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See all 5 projectsFCamara is an IT services company specializing in digital transformation, DevOps, infrastructure management, and AI technology development. A common theme in the reviews is their ability to deliver projects on time and their strong technical expertise. Reviewers praise their effective communication and seamless integration with client teams, with 100% positive feedback on their professionalism and project outcomes.
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$100,000+$25 - $49 / hr50 - 249Melbourne, Australia
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See all 4 projectsInsighture is a technology consulting company specializing in software development, performance optimization, and resource augmentation. The company's reviews are overwhelmingly positive, highlighting its cultural fit, agile project management, and ability to integrate seamlessly with clients' teams. Approximately 100% of reviewers praise Insighture's flexibility and commitment, with no significant areas for improvement noted.
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$50,000+$100 - $149 / hr250 - 999New York, NY
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See all 15 projectsIcreon is a versatile digital transformation and technology services company, offering solutions in areas such as e-commerce, web development, and digital strategy. Across the reviews, clients consistently praise Icreon for their strategic approach, comprehensive digital expertise, and effective project management. Notably, 100% of reviewers commend their ability to integrate and deliver complex solutions, and there are no reports of any areas needing improvement, indicating high client satisfaction.
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$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 31 projectsFacile Technolab is an enterprise application modernization company praised for its high-quality communication and stable software solutions. They efficiently modernized Summers Engineering's internal software, resulting in over 20 daily users and managing over 600 tickets. With no negative feedback, they excel in software stability and proactive communication.
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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
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 / 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 -
$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 -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35/40.017/20 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 -
$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 - 9,999Atlanta, 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.