Top Application Modernization Services
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$10,000+$100 - $149 / hr10 - 49Southend-on-Sea, England
Services provided
See all 6 projectsAtlas - Clever Software is a software development company specializing in creating bespoke web-based applications and solutions, particularly in CRM systems and mobile platforms. Across their reviews, the company is praised for its professionalism, innovative approaches, and partnership-driven mindset. Clients highlight their ability to deliver solutions on time and within budget with a focus on business value, resulting in high customer satisfaction. Notably, Atlas demonstrates adaptability and a commitment to client success, with nearly 100% of reviewers appreciating their proactive strategies and collaborative project management.
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Undisclosed$25 - $49 / hr10 - 49Montevideo, Uruguay
Services provided
See all 13 projectsKreitech is a versatile software development company excelling in cybersecurity, staff augmentation, and custom technology solutions such as AI, blockchain, and VR/AR experiences. With overwhelmingly positive feedback, 100% of reviewers commend their communication, adaptability, and consistent on-time delivery. Clients appreciate Kreitech's ability to align solutions with project goals, making them a reliable partner for complex technological challenges.
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$25,000+$50 - $99 / hr50 - 249Chernihiv, Ukraine
Services provided
See all 17 projectsSoft Industry Alliance is a versatile IT development company specializing in AI solutions, ERP systems, web and mobile applications, and complex backend infrastructure. Reviews highlight their technical expertise, agile project management, and responsiveness, with over 80% of feedback being positive, emphasizing their strong communication and client alignment. While some documentation can improve, clients consistently express satisfaction with their professionalism and deliverables.
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$50,000+$100 - $149 / hr10 - 49Burnaby, Canada
Services provided
See all 1 projectsSEYA Group is a software development and outsourcing company specializing in providing back-end, front-end, QA, and DevOps resources. The company received overwhelmingly positive feedback, with clients praising their ability to reduce project timelines by 50% and eliminate technical debt. Approximately 100% of reviews highlight their high-level professionals, cost-effectiveness, and excellent cultural fit.
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$5,000+$50 - $99 / hr10 - 49Gdańsk, Poland
Services provided
See all 2 projectsNet PC is a technology company specializing in the development of innovative booking systems and platforms for research and data collection. Reviews highlight their effective project management, strong communication skills, and technological expertise. Approximately 100% of the feedback is positive, with clients praising their ability to reduce costs and streamline processes efficiently.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
Services provided
See all 2 projectsVGD Technologies is a software development company specializing in creating investment apps and CRM systems. Across their reviews, 100% positive feedback highlights their timely delivery and effective project management, with impressive results such as generating over $2.7 million in revenue for a client. Reviewers consistently praised their responsiveness and value for cost.
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$25,000+$25 - $49 / hr10 - 49Bengaluru, India
Services provided
See all 7 projectsTechpearl Software Pvt Ltd. is a versatile software development company specializing in creating customized solutions across multiple industries, including environmental consulting, e-commerce, supply chain management, and more. The company is praised for its responsiveness, timely delivery, and collaborative approach, with 100% of reviewers positively noting their adaptability and commitment to project success. However, some clients suggest improvements in requirement gathering and project management processes.
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$10,000+$25 - $49 / hr10 - 49Ashtarak, Armenia
Services provided
See all 3 projectsHydralab LLC is a web development company specializing in creating custom websites and portals, primarily serving industries like gaming. Their reviews highlight a strong culture and timely project delivery, with 100% positive feedback on their project management and adherence to deadlines. Clients appreciate their alignment in values and effective communication, though some mention a need for all developers to meet the latest standards.
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$10,000+$25 - $49 / hr50 - 249Birmingham, England
Services provided
See all 7 projectsBlueberry Consultants is a bespoke software development firm, praised for their tailored solutions and robust project management. Across the reviews, 100% of clients highlighted their effective communication and adaptability, with no negative feedback reported. Clients frequently mentioned their ability to meet deadlines and budgets, with 83% specifically noting their quick response times and problem-solving capabilities.
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$25,000+$150 - $199 / hr10 - 49Truckee, CA
Services provided
See all 4 projectsNew Leaders is a versatile development firm specializing in web and app development, branding, and content strategy. The company is praised for its collaborative approach and ability to understand client visions, with 100% of reviewers highlighting their professionalism and problem-solving capabilities. Reviewers appreciate their flexibility, although some note potential resource constraints for large-scale projects. Overall, 90% of clients express high satisfaction with their services.
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$5,000+$25 - $49 / hr10 - 49Kraków, Poland
Services provided
See all 1 projectsGISonLine is a geospatial solutions company specializing in integrating geospatial mapping and visualization components into existing platforms. According to reviews, 100% of clients expressed satisfaction with their knowledgeable and experienced team, seamless integration, and strong project management. Their communication and understanding of business needs are consistently praised, with no areas for improvement noted.
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$5,000+$150 - $199 / hr10 - 49Salt Lake City, UT
Services provided
See all 12 projectsKsense Technology Group LLC is a technology firm specializing in Enterprise Application Modernization, offering tailored software solutions like custom web-based tools for improved data management. Their services receive unanimous praise, particularly for their responsiveness and innovative approach, with 100% of reviewers highlighting their ability to enhance user experience and reduce administrative burdens effectively.
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$25,000+$25 - $49 / hr250 - 999Taipei, Taiwan
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See all 2 projectsTPIsoftware, also known as ThinkPower, is a software design and development company providing business-tailored software solutions and consultancy services. Reviews highlight their expertise in mobile app solutions and project management, with 90% of feedback emphasizing their stability, effective communication, and technical proficiency. Clients appreciate their commitment to understanding project needs and delivering quality outcomes.
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$10,000+$100 - $149 / hr2 - 9
Services provided
See all 4 projectsSpailor LLC is a software development company specializing in Enterprise Application Modernization and Digital Transformation services. With 100% positive feedback, clients commend their exceptional project management, timely delivery, and proactive communication. Approximately 50% of reviewers highlight their problem-solving mindset and dedication to client needs, while another 50% appreciate their effective digital transformation solutions.
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$10,000+Undisclosed10 - 49
Services provided
See all 13 projectsSitePen is a company specializing in Enterprise Application Modernization services, offering solutions such as software and platform modernization. Clients consistently praise their professional project management and effective communication, with 100% of reviewers noting timely delivery and responsiveness to client needs. Their technical expertise and collaborative approach were highlighted as significant strengths.
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$5,000+$50 - $99 / hr10 - 49Rosehill, Australia
Services provided
See all 1 projectsHokma Consulting and Technology Solutions is a tech consulting firm specializing in IT infrastructure, system integration, network optimization, and cybersecurity enhancements. With 100% positive feedback, clients praise their professionalism, technical expertise, and timely delivery. Reviewers consistently highlight their proactive approach and ability to exceed expectations.
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$100,000+$150 - $199 / hr50 - 249New York, NY
Services provided
See all 4 projectsStride Consulting is a software development and consulting firm specializing in Agile methodologies and technical solutions, such as iOS and web app development, staff augmentation, and business consulting. Their reviews highlight a strong commitment to project management excellence and adaptability, with 100% of clients praising their collaborative approach and technical expertise. Clients appreciate Stride Consulting's ability to integrate seamlessly with existing teams, provide high-quality deliverables, and support business goals efficiently.
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$10,000+$50 - $99 / hr10 - 49Santa Monica, CA
Services provided
See all 2 projectsInvemo is a mobile app development company specializing in creating native applications for both iOS and Android platforms, including backend systems and UI/UX design. Overall, Invemo receives positive feedback, with clients appreciating their professional project management and innovative approach, as evidenced by a 100% satisfaction rate in delivering projects on time and exceeding expectations. Their work is often described as thorough and efficient, with seamless client communication.
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$25,000+$50 - $99 / hr50 - 249Hanoi, Vietnam
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See all 4 projectszen8labs is a digital solutions company specializing in UX/UI design, mobile app development, and digital marketing optimization. Reviews highlight their exemplary project management, timely delivery, and user-centered approach, with 100% positive feedback emphasizing their ability to translate user data into actionable improvements and exceed client expectations. Clients appreciate their budget-friendly services and strong communication skills.
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$25,000+$100 - $149 / hr50 - 249
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See all 20 projectsAppiskey is a versatile app development company that offers a wide range of services including app creation, web development, and digital strategy. The reviews reveal a mostly positive perception, with 88% of clients highlighting their professionalism, teamwork, and dedication. Clients appreciate their ability to foster a collaborative and respectful environment, with 75% of reviewers noting their effective communication and problem-solving skills. However, there are concerns about project management, with some clients citing issues with meeting deadlines and project deliverables.
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$25,000+Undisclosed10 - 49Columbia, MO
Services provided
See all 6 projectsQuarkWorks is a versatile software development company specializing in mobile app development, custom software solutions, and UX/UI design. Across their reviews, 100% of clients highlight their technical expertise, professionalism, and effective communication. Clients consistently express satisfaction with the quality and timeliness of QuarkWorks' deliverables, with many noting the company's ability to integrate seamlessly with internal teams and exceed expectations.
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$5,000+< $25 / hr50 - 249Jaipur, India
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See all 6 projectsTechno Softwares is a versatile IT solutions company, excelling in software development, CRM and ERP systems, mobile app development, and digital marketing. They consistently receive high praise for their commitment to customer needs and project delivery, with over 90% of reviews highlighting their timely execution and professionalism. Their ability to align with diverse business objectives is frequently commended by clients.
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Undisclosed$25 - $49 / hr2 - 9Buenos Aires, Argentina
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See all 1 projectsInAllMedia is a versatile development company specializing in UI/UX design, .NET and Java technologies, and mobile development. The reviews are overwhelmingly positive, highlighting their ability to rapidly augment teams with high-quality talent and their strong grasp of current technology trends. Approximately 100% of the feedback reflects satisfaction with their professionalism, team management, and technical expertise.
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$5,000+< $25 / hr50 - 249Kochi, India
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See all 2 projectsVofox Solutions is a software development company specializing in website, CRM, ERP, and custom software solutions. Reviews indicate a high level of client satisfaction, with clients praising their reliability and effective project management, resulting in increased efficiency and automation. Approximately 90% of reviewers noted the team's professionalism and strong communication skills. Areas for improvement include initial documentation detail.
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$25,000+$50 - $99 / hr50 - 249AAS, Argentina
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See all 9 projectsGlobal Task is a versatile software development company known for offering tailored IT solutions, from educational platforms to credit card control systems and blockchain integrations. The company consistently receives high praise for its project management, transparency, and quality of deliverables, with 100% of reviewers noting their impressive flexibility and commitment to client goals. Reviewers also highlight Global Task's strong team dynamics and cultural fit, making them a reliable partner for diverse technological needs.
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$50,000+$150 - $199 / hr10 - 49Bellbrook, OH
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See all 2 projectsSparkbox is a web development company specializing in responsive website design and frontend architecture, notably providing pattern libraries and CMS migrations. Client reviews highlight their exceptional technical skills and project management, with around 85% of feedback focusing on their ability to improve user engagement and internal processes. Clients appreciate their educational approach and seamless team integration, with no major areas identified for improvement.
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$75,000+$100 - $149 / hr50 - 249Sao Paolo, Brazil
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See all 2 projectsMobile2you Technology is a mobile and backend development company highly regarded for its expertise and innovative solutions. They have consistently delivered quality results with minimal rework, adhering to deadlines without budget or time concerns. Positive feedback is prevalent, with 100% of reviewers highlighting their impressive knowledge and commitment to client success. Areas for improvement are minimal, indicating a strong overall client satisfaction.
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Undisclosed$25 - $49 / hr10 - 49
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See all 5 projectsImpliway is a professional Odoo ERP implementation company that specializes in providing tailored solutions for inventory management, workflow simplification, and data assessment. With around 100% positive feedback, clients commend their strong communication, timely delivery, and personalized service. Notable qualities include their commitment to results and client satisfaction, while some suggest further expertise in HR modules could be beneficial.
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$25,000+Undisclosed10 - 49London, England
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See all 1 projectsAleios is a specialized company offering serverless solutions, notably using AWS, with a focus on re-platforming and content management system integrations. Reviews highlight their impressive and energetic approach, with 100% positive feedback emphasizing their confidence, timeliness, and effective communication. Their ability to work seamlessly with stakeholders has earned them significant trust and satisfaction.
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UndisclosedUndisclosed50 - 249Stockholm, Sweden
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See all 4 projectsDevelit is an Enterprise Application Modernization company specializing in building custom business systems and automating functions. Feedback from clients highlights their ability to simplify processes significantly, with over 50% of orders coming directly through client webshops. Reviewers praise Develit for their personal touch and alignment with company values, although there is a noted area for improvement regarding timely project delivery.
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List of the Top 15 Legacy Modernization Services
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$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 - 999Miami, FL
Ability to deliver
38.1/40.019/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% 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+$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 -
$25,000+$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 -
$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 -
$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 / hr50 - 249Gliwice, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% 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+$25 - $49 / 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 -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
32.7/40.018/20 Reviews9.8/10 Clients & Experience4.8/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% 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+$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 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
11% Enterprise App Modernization89% 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 -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
36.9/40.017/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% 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 - 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 -
$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 -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
34.9/40.017.8/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$75,000+$50 - $99 / hr50 - 249Marlborough, MA
Ability to deliver
38.9/40.020/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
Ability to deliver
37.4/40.018.4/20 Reviews9.6/10 Clients & Experience9.5/10 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.