Top Legacy System Modernization Firms

Many core systems still run on COBOL, Visual Basic, old .NET or Java monoliths that few engineers can maintain and that cannot connect to modern tools. Legacy system modernization companies replace or rework them without stopping the business: they assess the codebase, choose between rehosting, refactoring, rearchitecting and rebuilding, then migrate data and users in stages. Companies hire them when vendors end support, when the last developer who knows the system is retiring, when security audits flag unsupported software, or when a new product needs APIs the old system cannot offer.

Compare the firms here on modernizations of your specific technology and on how they keep the old and new systems running side by side during the switch.

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4,482 Companies

List of the Best Legacy System Modernization Agencies

Fieldpoint Service Applications
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We are dedicated to providing our community with top-notch content related to the service industry. Stay connected with us for frequent updates on the latest service management news, tips, insights, and more. So, who is Fieldpoint? Fieldpoint assists IT service providers, management consultants, and
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Oakville, Ontario, Ca
Services Provided+10 Services
5% Custom Web Application Development
2% E-Commerce Development
10% ERP & CRM Development
3% Legacy System Modernization
AI Summary
“Fieldpoint Service Applications provides web-based project and field service management software integrating resource scheduling, contract management, and time tracking, supporting efficient service delivery across industries.”
TechnoScore
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TechnoScore is a premier company specializing in mobile, web, and software design and development, boasting over 25 years of experience serving small, medium, and large enterprises across various industries. With a dedicated team of more than 200 skilled developers, quality analysts, and UI/UX desig
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
New Delhi, Delhi, In
Services Provided+8 Services
11% Mobile App Development (iOS & Android)
11% Custom Web Application Development
3% Legacy System Modernization
6% Product UX Strategy
AI Summary
“TechnoScore delivers expert mobile, web, and software development with over 25 years experience, serving diverse clients globally through innovative, secure, and agile technology solutions.”
Nacres
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Nacres Yazılım Teknoloji is a forward-thinking technology firm focused on providing unique, innovative solutions that cater to the specific requirements of our clients. We are dedicated to excellence and utilize the most current advancements in software technology to enhance businesses and organizat
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Ankara, Tr
Services Provided+3 Services
20% Custom Web Application Development
10% Mobile App Development (iOS & Android)
10% API Development & Integration
5% QA & Software Testing
AI Summary
“Nacres Yazılım Teknoloji delivers innovative, customized software solutions and strategic IT consulting, driving digital transformation to enhance business operations and foster industry success.”
threesixfive DGTL
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We develop advanced digital experiences and solutions, delivering complex applications and processes while prioritizing simplicity and user-friendliness for the end-user. By utilizing the latest technologies and coding methodologies, we build upon dependable and secure Microsoft platforms, such as S
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
7% Legacy System Modernization
13% Custom Web Application Development
8% IT Compliance & Governance
12% Managed IT Services
AI Summary
“threesixfive DGTL delivers advanced, user-friendly digital solutions leveraging Microsoft platforms like SharePoint and Azure, transforming business applications into intuitive, efficient collaboration tools.”
Quanteon Solutions
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Quanteon Solutions is a top provider of comprehensive software development and IT infrastructure services, assisting companies in fostering innovation and attaining operational excellence. Located in Virginia, USA, we focus on creating customized solutions to address the changing demands of the Heal
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Hyderabad, Telangana, In
Services Provided+7 Services
15% Custom Web Application Development
8% Mobile App Development (iOS & Android)
10% Backend Development
8% Frontend Development
AI Summary
“Quanteon Solutions delivers tailored software development and IT infrastructure services, leveraging advanced technology and industry expertise to drive innovation and operational excellence in Healthcare and Fintech.”
SC Web Magic Ennovates SRL
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At Magic-WP, we create, enhance, and sustain high-performance WordPress websites tailored to meet real business objectives. Our services extend beyond design; we develop swift, scalable, and conversion-focused platforms that assist businesses in generating leads, selling products, and efficiently de
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
Sancraiu de Mures, Mures, Ro
Services Provided+2 Services
14% E-Commerce Development
17% Custom Web Application Development
3% Legacy System Modernization
20% Managed IT Services
AI Summary
“SC Web Magic Ennovates SRL specializes in high-performance, custom WordPress solutions focused on scalability, user experience, and business-driven website development and maintenance.”
Mindbox Studios
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Mindbox collaborates with business leaders across different sectors to create and deploy impactful digital solutions. We utilize established strategies such as design sprints, principles of minimum viable product design, and agile development techniques to accelerate implementation. Since 2006, our
Highlights
$5,000+
Min Project Size
2-9
Employees
Sacramento, California, Us
Services Provided+6 Services
10% Mobile App Development (iOS & Android)
11% Custom Web Application Development
4% Legacy System Modernization
18% Product Design
AI Summary
“Mindbox Studios delivers integrated digital solutions combining software development, UI/UX design, consulting, and digital strategy to empower businesses with innovative, user-centric, and growth-driven technologies since 2006.”
TechIndies
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We are a group of skilled IT engineers who are truly passionate about technology and innovation. At TechIndies, we are convinced that every brilliant idea should be supported by effective execution. Our goal is to serve as the technical driving force for startups, companies, and entrepreneurs who ha
Highlights
$250,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+2 Services
8% API Development & Integration
20% Custom Web Application Development
7% E-Commerce Development
10% Mobile App Development (iOS & Android)
AI Summary
“TechIndies is a team of skilled IT engineers dedicated to transforming innovative ideas into practical solutions, empowering startups and entrepreneurs with expert technological support.”
LNCHUB INFORMATION TECHNOLOGY COMPANY LIMITED
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At Lnchub Co., Ltd., we empower organizations to develop a more efficient and adaptable IT infrastructure, allowing for quick adjustments to shifting market dynamics. We focus on creating IT systems that are scalable, agile, dependable, and responsive to the needs of businesses.
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Vn
Services Provided+12 Services
10% Other IT Consulting and SI
10% Blockchain & Web3 Development
10% E-Commerce Development
10% Mobile App Development (iOS & Android)
AI Summary
“LNCHUB INFORMATION TECHNOLOGY COMPANY LIMITED excels in Software Development with expertise in E-Commerce Development, Mobile App Development, and Custom Web Application Development, delivering scalable and modern IT solutions tailored to business needs.”
Evius Industri
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We are a digital agency based in Indonesia, established in 2017. Our goal is to bring your ideas to life, whether for a startup or new product offerings. We utilize cutting-edge technology, integrating single-page applications with server-side rendering and API-driven web applications to create fast
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+7 Services
14% Custom Web Application Development
5% Legacy System Modernization
6% Frontend Development
8% Product UX Strategy
AI Summary
“Evius Industri is a digital agency in Indonesia specializing in advanced web technologies to develop scalable, efficient digital products that enhance productivity and competitiveness for startups and businesses.”

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Top Legacy System Modernization Firms

List of the Best Legacy System Modernization Agencies

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