Top Application Modernization Services
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$1,000+$25 - $49 / hr2 - 9Rabat, Morocco
Services provided
See all 6 projectsCode Studio is a web development company specializing in creating custom solutions using technologies such as Webflow, React, and Vue.js. The reviews for Code Studio are overwhelmingly positive, with clients praising their responsiveness, expertise, and ability to deliver high-quality projects within budget and timelines. Around 80% of reviewers commend their communicative and problem-solving approach, highlighting their impressive flexibility and client-oriented service.
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$10,000+$200 - $300 / hr10 - 49Greenwood Village, CO
Services provided
See all 1 projectsQuandary Consulting Group is a consulting firm specializing in creating custom Quickbase CRM solutions to enhance project efficiency. Reviews highlight their ability to deliver on time, with 100% positive feedback on their attention to detail and project management. Clients report increased efficiency and faster production as a result of their services.
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$50,000+$200 - $300 / hr10 - 49New York, NY
Services provided
See all 1 projectsBlenderbox is a distinguished web development company known for its commitment to improving user experiences through innovative, mobile-first web redesigns. They have received overwhelmingly positive feedback, with clients praising their meticulous project management and the dedication of their senior leadership. Notably, there are no reported deficiencies, and client satisfaction is consistently high.
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$10,000+Undisclosed10 - 49Toronto, Canada
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See all 1 projectsBuildable is a web app development company specializing in creating scalable and feature-rich applications using technologies like React and Node.js. One hundred percent of reviewers praise their organized project management and proactive communication, highlighting their ability to grasp client needs and deliver valuable solutions.
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Undisclosed< $25 / hr10 - 49Ahmedabad, India
Services provided
See all 4 projectsCovrize IT Solutions Private Limited is a software development company offering IT solutions, including software maintenance, project upgrades, and development services. They consistently receive positive feedback, with approximately 100% of reviews praising their timely delivery, exceptional project management, and proactive approach to client needs, highlighting their ability to add significant value to projects.
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$5,000+$25 - $49 / hr2 - 9Secunderabad, India
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See all 1 projectsDigital Software Labs is a web development company specializing in creating dynamic and user-friendly e-commerce websites. The overall feedback is positive, with 100% of reviewers praising their high-quality work and timely delivery. Notably, the engaging website design has directly contributed to customer acquisition.
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$10,000+$25 - $49 / hr250 - 999Zheng Zhou Shi, China
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See all 1 projectsHISOFT HENAN co. LTD is an Internet software technology development and consulting company with expertise in management software, Internet systems, and mobile app development. Reviewers consistently express high satisfaction with their services, highlighting professional technical skills, excellent customer service, and stable personnel. Notably, 100% of the feedback is positive, emphasizing the company's capability to enhance enterprise IT functions efficiently.
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$10,000+$50 - $99 / hr2 - 9Plovdiv, Bulgaria
Services provided
See all 1 projectsSkillAbility Soft Ltd. specializes in creating and integrating patient engagement and dental practice management software. Reviews highlight their exceptional communication and timely delivery, with all projects completed ahead of schedule. Impressively, 100% of reviewers commend their experience and dedication, although there's a note on setting work-hour boundaries. Overall, SkillAbility Soft Ltd. maintains a strong reputation for meeting client objectives effectively.
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$5,000+$25 - $49 / hr50 - 249Jaipur, India
Services provided
See all 7 projectsBluetris Technologies Pvt. Ltd. is a versatile technology company specializing in data engineering, CRM solutions, and web and mobile development. Their reviews highlight a strong technical proficiency, particularly in cloud-based solutions like Azure and Salesforce, with 100% of reviewers praising their technical excellence and adaptability. Feedback is overwhelmingly positive, with 80% emphasizing their effective project management and commitment to partnership.
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$5,000+$25 - $49 / hr50 - 249Pune, India
Services provided
See all 5 projectsCarnera is a versatile technology solutions provider specializing in data engineering, analytics, and full-stack software development. Across their reviews, 100% of clients praised their project management, expertise, and seamless integration into existing teams. Clients highlighted Carnera's ability to meet deadlines and budget while maintaining high-quality work and effective communication. Some feedback suggested earlier issue identification could enhance their service.
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$50,000+$100 - $149 / hr250 - 999Norcross, GA
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See all 3 projectsCloud Consultings Inc. is a consulting firm specializing in Salesforce application analysis, security resolution, and ongoing support. They receive overwhelmingly positive feedback, with 100% of the reviews highlighting their timely delivery and responsiveness. Clients commend their talented professionals and outstanding service, with no areas for improvement noted.
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Undisclosed$25 - $49 / hr2 - 9
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See all 1 projectsHavooz ICT Services is an innovative big data solutions provider, recognized for its technical expertise and pioneering efforts in data management. With 100% positive feedback, clients commend their ability to understand needs and deliver tailored solutions. Their standout innovation and commitment have effectively supported clients like Avea, making them industry pioneers in Turkey.
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$10,000+$25 - $49 / hr50 - 249Fremont, CA
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See all 4 projectsAgile Soft Systems, Inc is a software development company offering cloud platform upgrades and CRM improvements. Reviews highlight their expertise, affordability, and responsive project management. Approximately 90% of feedback is positive, with 70% of clients impressed by their ability to address unforeseen issues. Areas for improvement include initial stakeholder involvement and QA testing.
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$25,000+$100 - $149 / hr50 - 249Miamisburg, OH
Services provided
See all 1 projectsSmart Data is a software development company specializing in transitioning legacy systems to modern technology stacks, with a focus on healthcare applications. They have been lauded for their agile development process and exemplary communication, as 100% of the feedback praises their developers' skill and professionalism. The project outcomes include successful software conversion with minimal downtime, enabling geographic and operational expansion.
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UndisclosedUndisclosed50 - 249Washington, DC
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See all 1 projectsMacro Solutions is an IT consulting firm specializing in application operations and maintenance (O&M) and modernization services. Feedback highlights their strong technical leadership, effective project management, and successful implementation of DevSecOps and CI/CD for over 25 applications. Clients regard them highly, with 100% of reviews noting their professionalism and integrity.
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$25,000+$25 - $49 / hr10 - 49Gurugram, India
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See all 5 projectsSynergyLabs is a versatile technology firm specializing in custom software development, including UI/UX design, AI model development, and ERP systems. Reviewers consistently commend SynergyLabs for their responsiveness and technical expertise, especially in rapidly delivering solutions tailored to startups and established businesses. Over 90% of feedback highlights their ability to meet deadlines and provide effective solutions, with minimal negative comments primarily focused on team size and proactivity.
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$10,000+$25 - $49 / hr10 - 49Lviv, Ukraine
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See all 8 projectsCodeSeek is a versatile software development company that excels in web and mobile development, team augmentation, and custom software solutions. Analyzing their reviews, approximately 95% of feedback is positive, highlighting their strong technical expertise, exceptional communication, and commitment to quality. Reviewers frequently commend CodeSeek's ability to deliver projects on time, integrate seamlessly with existing teams, and adapt to evolving requirements, making them a reliable partner for complex projects.
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$5,000+$25 - $49 / hr10 - 49Lucknow, India
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See all 2 projectsBytexus Software Solution Pvt. Ltd™ is an adept technology solutions provider, offering services such as software migration, AI automation, and ongoing application support. The reviews reflect a 100% satisfaction rate, highlighting their technical expertise, responsive communication, and ability to deliver projects on time. Approximately 90% of reviewers emphasize their customer-focused approach and alignment with business objectives, marking them as a reliable partner for complex technological projects.
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$10,000+$50 - $99 / hr10 - 49Sandton, South Africa
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See all 2 projectsAppstrax Technology is a versatile software development company specializing in web and mobile app solutions. The company is praised for its professionalism, flexibility, and comprehensive project management, with 100% of reviewers highlighting their effective communication and seamless integration of client vision into deliverables. Some areas for improvement include clearer timeline expectations and refining junior design capabilities.
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$1,000+< $25 / hr10 - 49Ha Noi, Vietnam
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See all 1 projectsTekify Co., Ltd is a software development company specializing in mobile and web app development and automation testing through a staff augmentation model. Client feedback highlights their strong commitment and quality results, with 100% of reviews noting clear communication and effective project management. No areas for improvement were mentioned, indicating consistent satisfaction with their services.
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$1,000+< $25 / hr10 - 49Bengaluru, India
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See all 1 projectsAPPiLY Technologies is an app development company specializing in creating and maintaining applications for iOS and Android platforms. Reviews indicate a 100% satisfaction rate, highlighting timely delivery, attention to detail, and high-quality output. Clients commend their professionalism and personal attention to project needs, consistently recommending them for app development services.
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$10,000+$25 - $49 / hr250 - 999
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See all 6 projectsCCS Technologies is a comprehensive IT solutions provider specializing in software development, IT integration, ERP solutions, and cloud services. The company consistently receives positive feedback for its effective project management, collaborative team, and competitive pricing. Approximately 83% of reviewers express satisfaction with their services, highlighting their reliability and the quality of their deliverables.
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$10,000+$50 - $99 / hr2 - 9Bratislava, Slovakia
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See all 3 projectsJAVI solutions is a software development company specializing in creating and maintaining customized systems, such as invoicing and ERP solutions. Reviewers consistently praise their dedication, responsiveness, and ability to meet client needs, with 100% positive feedback on their commitment and problem-solving skills. While some note occasional delays, they've demonstrated consistent improvement in project delivery timelines.
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UndisclosedUndisclosed10 - 49
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See all 1 projectsDigital is Simple is an AI development firm specializing in building and integrating AI solutions, including API integrations and workflow automation. Reviews indicate a strong positive reception with 100% satisfaction, highlighting their timely delivery and seamless project management. Clients appreciate their cultural alignment and cost-effective services, with no identified areas for improvement.
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$10,000+$50 - $99 / hr10 - 49Tallinn, Estonia
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See all 4 projectsApricusIT is a technology consulting and implementation company specializing in digital transformation, marketing automation, and cloud scaling solutions. The company is consistently praised for its professionalism, technical expertise, and effective communication, with notable client satisfaction in 100% of the reviews. Clients often commend ApricusIT's dedication to achieving business-oriented results and seamless integration of complex solutions.
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$1,000+$25 - $49 / hr10 - 49Islamabad, Pakistan
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See all 4 projectsCodeWorx Developers is a web development company known for designing responsive, user-friendly websites with integrated booking and profile management systems. According to the reviews, 100% of clients commend their attention to detail and alignment with business needs, while 90% appreciate their timely delivery and proactive communication. However, a small percentage noted a need for more frequent initial progress updates.
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Undisclosed$25 - $49 / hr10 - 49Thiruvananthapuram, India
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See all 1 projectsLivares Technologies is a technology solutions provider specializing in scalable SaaS platform development. Their clients commend them for their high quality, honesty, and dedication, with 100% positive feedback emphasizing project success, enhanced user experience, and operational efficiency. Their pricing and aligned company values are noted advantages.
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$10,000+< $25 / hr10 - 49Bengaluru, India
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See all 1 projectsAB Infosoft is a web development company specializing in rebuilding and securing websites, with a focus on using the latest technologies like Magento. They are commended for their responsiveness and quality, although some projects experienced delays. Around 100% of reviewers highlight improved website security and increased traffic, with feedback being predominantly positive.
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$5,000+$25 - $49 / hr2 - 9Kingston, Jamaica
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See all 1 projectsDCI Solutions is a software development company specializing in creating scalable, web-based applications for financial services. Review feedback indicates a strong emphasis on responsiveness and understanding of business needs, with 100% positive comments on their project management and communication. However, 100% of reviewers noted a need for improved documentation timeliness.
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$5,000+$50 - $99 / hr2 - 9Lytchett Matravers, England
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See all 4 projectsNovatura is a digital solutions company specializing in website redesign, database creation, and event management systems. With a perfect track record of delivering projects on time, 100% of reviewers praise their innovative approach, professionalism, and exceptional communication. Clients emphasize their strong alignment with company values and cost-effectiveness, with no reported areas for improvement.
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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
35.8/40.020/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
37.8/40.020/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$100,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
34.7/40.019/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
32.1/40.016.6/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
34/40.018.8/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.6/40.015.8/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.3/40.017.8/20 Reviews9.8/10 Clients & Experience3.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
30.8/40.016.4/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
30.7/40.016.2/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
30.5/40.015.2/20 Reviews8.8/10 Clients & Experience6.6/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
36.4/40.020/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
33.3/40.019.6/20 Reviews10/10 Clients & Experience3.7/10 Market PresenceService focus
35% Enterprise App Modernization65% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.1/40.015.8/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$10,000+$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
35.4/40.019.6/20 Reviews9.1/10 Clients & Experience6.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
35.6/40.020/20 Reviews10/10 Clients & Experience5.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
33.5/40.017.2/20 Reviews9.8/10 Clients & Experience6.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
31.8/40.017.6/20 Reviews10/10 Clients & Experience4.2/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$1,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
34.8/40.017/20 Reviews9.7/10 Clients & Experience8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$150 - $199 / hr50 - 249Claymont, DE
Ability to deliver
33.3/40.016.6/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.020/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.3/40.016.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34/40.017.8/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.6/40.016.6/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
32.6/40.018.6/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
31.5/40.017.2/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
Ability to deliver
33.4/40.016.6/20 Reviews9.9/10 Clients & Experience7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.4/40.016.4/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
28.2/40.016.2/20 Reviews7.8/10 Clients & Experience4.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
34.2/40.018.8/20 Reviews10/10 Clients & Experience5.4/10 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.