Top Application Modernization Services
-
$1,000+$50 - $99 / hr50 - 249Jakarta, Indonesia
Services provided
See all 2 projectsIce House is a software development company specializing in building native iOS, Android, and web applications. Their reviews highlight a strong emphasis on high-quality development and effective project management, with 100% of reviewers noting their realistic delivery times and organized communication. Clients appreciate their service-oriented approach and the ability to work within budget constraints, although some suggest improvements in app metrics analytics.
-
UndisclosedUndisclosed10 - 49Yerevan, Armenia
Services provided
See all 1 projectsAOByte is a software development company renowned for their strategic problem-solving and effective communication. They have received 100% positive feedback, with clients particularly praising Tigran, the CEO, for his excellent management and collaboration skills. Clients appreciate their timely deliveries and transparency, highlighting AOByte as a reliable and efficient partner for complex development projects.
-
$25,000+$50 - $99 / hr10 - 49Plovdiv, Bulgaria
Services provided
See all 7 projectsDiadraw Ltd. is a versatile software development company specializing in ERP systems, technical integrations, and digital transformation solutions. Consistently praised for their responsiveness, professionalism, and customer service, Diadraw maintains a near-perfect satisfaction rate, with approximately 100% of clients highlighting their timely delivery and effective project management. Clients particularly appreciate the company's alignment with their values and its ability to navigate complex technical challenges.
-
$10,000+$100 - $149 / hr50 - 249Annapolis Junction, MD
Services provided
See all 1 projectsInterclypse is a consulting and development firm specializing in modernizing technology infrastructure and providing training in new technologies. With a strong focus on communication and problem-solving, they have received approximately 80% positive feedback for their work, although some reviewers noted occasional lapses in the development cycle and testing processes. Their expertise in consulting and teaching is highly valued by clients.
-
$1,000+$25 - $49 / hr10 - 49Richmond, VA
Services provided
See all 8 projectsDeKnows is a web development and digital solutions company known for its comprehensive web development, SEO, and digital marketing services. Reviews indicate a high level of client satisfaction, with 100% of reviewers praising their responsiveness, communication, and commitment to delivering on time. Many clients, such as Mind Motivations and Tech Giants LLC, noted improved performance and substantial business growth as a result of their collaboration with DeKnows.
-
$10,000+$50 - $99 / hr10 - 49Timișoara, Romania
Services provided
See all 1 projectsMoreDevs is a software development company that specializes in creating high-quality, configurable software solutions, particularly for integrating medical device data into clinic information systems. The feedback from their reviews is overwhelmingly positive, with 100% of reviewers praising their reliability, flexibility, and adherence to budgets and timelines, noting the software's impressive longevity and the team's strong communication and adaptability skills.
-
$50,000+$100 - $149 / hr2 - 9
Services provided
See all 1 projectsApptitude is a technology company specializing in web and app development with a strong emphasis on clean, modern design and excellent service. The company has received 100% positive feedback, with clients praising their ability to enhance website stability, achieving 99.99% uptime, and their forward-thinking approach to technology while being budget-conscious. Overall, Apptitude is recognized for its flexibility and talented team.
-
$1,000+< $25 / hr50 - 249Sahibzada Ajit Singh Nagar, India
Services provided
See all 4 projectsDigisoft Solution is a software development company specializing in custom web and Windows-based application development. Their reviews highlight a 100% positive feedback rate, with clients praising their technical expertise, responsiveness, and the ability to meet deadlines. Clients notably appreciate their alignment with business needs and high professionalism, with no areas suggested for improvement.
-
$5,000+Undisclosed10 - 49
Services provided
See all 6 projectsMobile-DI is a mobile app and web development company that specializes in creating innovative solutions for various industries. The company is praised for its technical expertise, seamless communication, and proactive approach in project management. Approximately 83% of reviews highlight their responsiveness and ability to understand business needs, while only about 17% identify areas of improvement, mainly related to communication and project handoff processes.
-
$25,000+$50 - $99 / hr2 - 9Fairfield, CA
Services provided
See all 3 projectsIdeas Factory US is a software development company specializing in GeneXus platform expertise and project management. Overall, they have received positive feedback, with 100% of reviews highlighting their effective communication, responsiveness, and problem-solving skills. Reviewers appreciated their project management capabilities, though one suggested improved tracking tools for larger projects.
-
UndisclosedUndisclosed10 - 49Sulzbach an der Murr, Germany
Services provided
See all 1 projectsFakir Technology Consultants GmbH is a technology consultancy specializing in web application development and text-mining using advanced algorithms like NLP and Haystack. Reviews highlight their effective project management, with 100% noting the timely delivery and pragmatic approach of their CEO. However, 100% also mention a language barrier as an area for improvement.
-
$25,000+$50 - $99 / hr10 - 49Bengaluru, India
Services provided
See all 4 projectsBluetick Consultants Inc. is a technology consultancy firm specializing in developing ERP software and data solutions. Reviews indicate a 100% satisfaction rate with their adaptability, quality of work, and in-depth tech knowledge, though they could enhance delivery speed. Approximately 50% of the feedback praises their commitment, flexibility, and understanding of client requirements.
-
$5,000+$25 - $49 / hr10 - 49
Services provided
See all 5 projectsGEOGO Techsolutions is a versatile development company specializing in creating innovative platforms with expertise in API integrations, AI, and machine learning. Overall, the feedback is positive, with clients praising the team's diligence, responsiveness, and ability to meet deadlines. However, some reviewers noted areas for improvement in project scoping and communication. Approximately 67% of reviews highlight the company’s impressive adaptability and technical prowess.
-
$10,000+$150 - $199 / hr10 - 49Lancaster, PA
Services provided
See all 1 projectsIndustrial Resolution is a web and software development company specializing in developing interfaces, data modeling, and process optimization using modern programming languages like Node.js and GraphQL. The reviews highlight their strong communication skills, effective project management, and problem-solving capabilities, with 100% positive feedback on these aspects. The company is also commended for its industry involvement and adaptability in the face of challenging integration tasks.
-
UndisclosedUndisclosed50 - 249Singapore
Services provided
See all 3 projectsEMURGO is a technology company specializing in blockchain integration and reliable API solutions. The overall feedback is highly positive, with 100% of reviewers expressing satisfaction with their projects. Clients are particularly impressed by EMURGO’s blockchain expertise and effective communication, highlighting their efficient workflows and project management tools.
-
$75,000+Undisclosed50 - 249Chişinău, Moldova
Services provided
See all 2 projectsISD is a software development company that specializes in providing software solutions and PLC engineering for mechanized warehouses and distribution centers. Clients commend ISD for their thorough knowledge of IT technologies, focus on efficiency, and teamwork. However, improvements in communication and capacity planning were noted. Approximately 90% of the feedback highlights their reliability and effective project management.
-
$10,000+< $25 / hr250 - 999Chennai, India
Services provided
See all 1 projectsSensiple is a software development company that provides services such as bug fixing, product enhancements, and third-party integrations, with a focus on converting platforms like Visual Basic 6 to VB .NET. Review feedback indicates a high level of professionalism and commitment, with notable strengths in scalability and technical project management. However, some reviewers noted challenges in managing productivity and suggested improvements in understanding software functionality.
-
$50,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
Services provided
See all 1 projectsDood Software is a software development company specializing in comprehensive product-based solutions, including management, development, and testing services. Their reviews highlight a strong knowledge base and innovative approach, with 100% of reviewers praising their professionalism, organization, and timely delivery. Despite being costlier, clients appreciate their expertise and recommend outsourcing full projects to leverage their well-rounded team's capabilities.
-
$1,000+$25 - $49 / hr10 - 49Vilnius, Lithuania
Services provided
See all 1 projectsKoditus is a development company that provides outsourced development services, particularly excelling in agile development projects. Reviews highlight their flexibility and customer-oriented approach, with 100% positive feedback on delivering key initiatives on time and maintaining a strong focus on employee well-being and culture.
-
$1,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsXAMTA INFOTECH is a digital solutions provider, specializing in services such as email marketing setups using tools like Odoo. They have received overwhelmingly positive feedback, with a 100% satisfaction rate from clients, highlighting their effective communication and timely delivery. Clients commend their exceptional value for money and ongoing collaboration.
-
$5,000+$25 - $49 / hr2 - 9Charlotte, NC
Services provided
See all 1 projectsAR Software, LLC is a software development company specializing in rapid deployment of order management solutions using No Code/Low Code platforms, such as Power Platform. Their clients appreciate their efficiency, with 100% of reviewers noting a significant improvement in operational timelines, though some suggest an increase in documentation. The company's rapid delivery and affordability are emphasized in 100% of reviews.
-
$5,000+$25 - $49 / hr10 - 49
Services provided
See all 1 projectsoutboxup is a versatile web and product design company, known for its professional and flexible approach. Their work has notably contributed to an IT firm's growth from $6 million to nearly $11 million. The reviews highlight their strong project management skills and innovative solutions, with a 100% mention of their professionalism and adaptability. However, there's room for improvement in using more project management tools.
-
$10,000+$50 - $99 / hr10 - 49Bratislava, Slovakia
Services provided
See all 5 projectsWEZEO is a software development company specializing in web and mobile application development, with expertise in UI/UX design and frontend technologies. Across various reviews, clients have consistently praised their technical proficiency, flexibility, and project management skills, with approximately 90% expressing satisfaction with their deliverables. However, some feedback suggests a need for improved alignment on project goals and expectations.
-
$25,000+$100 - $149 / hr10 - 49Amsterdam, Netherlands
Services provided
See all 1 projectsGenerous.studio is a creative agency specializing in website development and animation content to simplify complex technical concepts. Their clients report a 100% satisfaction rate, highlighting their exceptional project management and talent in visual content creation. Clients appreciate their ability to enhance digital presence and engagement effectively.
-
$1,000+< $25 / hr50 - 249Chennai, India
Services provided
See all 61 projectsFresa Technologies is a logistics software provider specializing in integrated freight forwarding management solutions. The company consistently receives positive feedback, with reviewers highlighting improved operational efficiency, reduced manual errors, and enhanced customer support responsiveness. While 90% of reviewers commend their industry expertise, some suggest improvements in system usability and customization options. Overall, Fresa Technologies demonstrates strong project management and user satisfaction.
-
$10,000+$50 - $99 / hr50 - 249New York, NY
Services provided
See all 1 projectsTeqnovos is a software development company specializing in building MVPs and full-scale platforms, notably utilizing technologies like Laravel and PHP. They receive overwhelmingly positive feedback, with clients praising their responsive communication, project management, and consulting capabilities. Approximately 90% of reviewers commend their proactive approach, emphasizing their commitment to product success beyond mere development.
-
$10,000+$150 - $199 / hr50 - 249Vancouver, Canada
Services provided
See all 4 projectsEkohe is a software development company specializing in Enterprise App Modernization, consistently praised for its commitment to operational excellence and robust project management. They maintain a 100% success rate in system uptime, with reviews highlighting their strong, positive company culture and alignment with client values.
-
$5,000+$150 - $199 / hr2 - 9Rochester, MI
Services provided
See all 2 projectsBrilliant Chemistry is a versatile web development and digital solutions company, noted for its exceptional project management and technical expertise. With 100% positive feedback, clients consistently highlight their outstanding communication and ability to transform visions into successful platforms. Their dedication to client success and budgetary considerations further underscores their reputation as a top-notch service provider.
-
$1,000+$25 - $49 / hr50 - 249Chennai, India
Services provided
See all 3 projectseGrove Systems is a versatile IT service provider specializing in e-commerce website development, mobile app creation, and platform migrations. Their reviews highlight a commendable 80% positive feedback, with clients appreciating their dedication, project management, and ability to exceed expectations. However, 20% noted areas for improvement, particularly in user experience design.
-
$50,000+$150 - $199 / hr10 - 49Lake Forest, CA
Services provided
See all 1 projectsLaminar Consulting Services Inc. is a software development company known for providing highly skilled developers that integrate seamlessly with clients' internal teams. Their reviews highlight a strong ability to assess project needs accurately and deliver results efficiently, with 100% of feedback reflecting satisfaction and a commitment to recommending their services to others.
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 and their real-time quotes in minutes.
Get My QuotesWhy 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
-
$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.