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

The Endless Co.
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The Endless Co. is an innovation studio located in New York. Our team combines 20 years of expertise as award-winning VFX artists and AAA game developers to craft immersive experiences and business solutions. Our offerings encompass: Virtual Reality, Augmented Reality, Smart Cities, 360° Capture, Pr
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
New York, New York, Us
Services Provided+1 Services
23% Custom Web Application Development
10% Legacy System Modernization
33% Digital Strategy
20% Brand Film & Corporate Video
AI Summary
“The Endless Co. is a New York-based innovation studio specializing in immersive experiences through VR, AR, 3D capture, interactive media, simulations, and smart city solutions, leveraging extensive VFX and game development expertise.”
WBPRO LLC
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WBPRO is a premier provider of IT and business operation software services, dedicated to assisting leading companies in transforming into more agile enterprises for over 18 years. We collaborate with clients to create comprehensive solutions that span from initial concept to implementation, enabling
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided
13% Mobile App Development (iOS & Android)
32% Custom Web Application Development
5% Legacy System Modernization
50% IT Staff Augmentation
AI Summary
“WBPRO LLC delivers expert custom software and mobile app development, IT staff augmentation, and consulting services, enabling enterprises to enhance agility, security, and competitiveness across industries.”
QArea
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Since 2001, QArea has been collaborating with clients to create software products by customizing workflows and solutions at every phase of our partnership. We specialize in complex, high-load web and mobile projects featuring scalable architecture, design, and front-end development. Our services cat
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Ta' Xbiex, Mt
Services Provided+4 Services
10% QA & Software Testing
8% Mobile App Development (iOS & Android)
9% Frontend Development
9% Backend Development
AI Summary
“Since 2001, QArea delivers scalable web and mobile software solutions with high code quality, offering MVP development, QA testing, and staffing services, backed by ISO certification and global experience.”
Max Mobility Pvt Ltd
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MaxMobility, established in 2005 and based in India with offices in the UAE and the USA, was created with the mission to enhance business agility and efficiency through the automation of business processes. We achieve this with our range of Enterprise Mobility Solutions, Tech Solutions, IoT/ VR/ BOT
Highlights
50-249
Employees
Kolkata, West Bengal, In
Services Provided
50% Mobile App Development (iOS & Android)
30% Custom Web Application Development
10% E-Commerce Development
10% Legacy System Modernization
AI Summary
“Max Mobility Pvt Ltd, founded in 2005, delivers enterprise mobility, IoT, VR, automation, and digital marketing solutions, driving digital transformation for diverse global clients.”
Ambit Logic LLC
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We are AmbitLogic, a software engineering and digital transformation company located in the US, dedicated to assisting businesses in designing, developing, and upgrading their essential technologies. Our expertise spans AI and machine learning, cloud architecture, and custom software development, en
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Nashua, New Hampshire, Us
Services Provided+1 Services
38% Custom Web Application Development
12% Legacy System Modernization
15% AI Strategy & Roadmap Consulting
15% Custom AI Chatbot Development
AI Summary
“Ambit Logic LLC is a US-based software engineering firm specializing in AI, cloud architecture, and custom software development, delivering strategic, future-focused digital transformation solutions.”
Coldfront Labs
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We develop web applications using the open-source CMS framework Drupal, complemented by various tools such as jQuery, jQuery UI, and jQuery Mobile. In addition to our Drupal developers, we have specialists who handle all aspects of web application development, including deployment, performance optim
Highlights
$100-149/hr
Avg Hourly Rate
2-9
Employees
Ottawa, Ontario, Ca
Services Provided+1 Services
28% Custom Web Application Development
5% Legacy System Modernization
14% Product UX Strategy
20% Web App UI Design
AI Summary
“Coldfront Labs specializes in developing web applications using Drupal and complementary technologies, offering comprehensive services from development and deployment to performance optimization and content creation.”
Condactis sp. z o. o.
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We partner with ambitious small and medium-sized businesses that have outgrown standard software solutions. When your operations require a customized approach, we step in to create, build, and maintain integrated systems that offer you a significant competitive edge. Our strength comes from a hybrid
Highlights
$25,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+3 Services
30% Low-Code MVP Development
20% Other IT Consulting and SI
15% Software Development Services
15% Legacy System Modernization
AI Summary
“Condactis sp. z o. o. delivers tailored integrated systems for SMEs, combining low-code platforms, custom coding, and AI to enhance efficiency and support continuous growth.”
PALO IT
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PALO IT is a global consultancy specializing in innovation and Agile software development, focused on helping organizations leverage technology for positive impact. We collaborate with clients to swiftly introduce new products and services, develop innovative business models, and equip leadership an
Highlights
$75,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
250-999
Employees
Ciudad de Mexico, Mexico City, Mx
Services Provided+1 Services
28% Custom Web Application Development
5% Legacy System Modernization
20% UX Research & Usability Testing
14% Product UX Strategy
AI Summary
“PALO IT is a global consultancy specializing in innovation and Agile software development, helping organizations deliver new products, innovate business models, and foster future-ready leadership across 11 locations.”
GOLEMS G.A.B.B. OÜ
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We are dedicated to improving your business. Our firm employs cutting-edge technologies and automated development processes, which help you save time and money while minimizing errors associated with human involvement. We guarantee complete confidentiality of your data and uphold the highest standar
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+1 Services
30% Custom Web Application Development
10% E-Commerce Development
10% Legacy System Modernization
30% Web App UI Design
AI Summary
“GOLEMS G.A.B.B. OÜ specializes in innovative web development and open-source Drupal solutions, delivering secure, adaptive, and high-quality digital platforms across diverse industries globally.”
Ampersand
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Ampersand is Alaska's top provider of technology services. We offer various services, including cybersecurity and risk management, enterprise software integration and architecture, hybrid cloud hosting solutions, and global broadband services. Our team comprises technology specialists and business s
Highlights
$50-99/hr
Avg Hourly Rate
2-9
Employees
Anchorage, Alaska, Us
Services Provided+3 Services
30% Managed IT Services
15% Cybersecurity Services
15% IT Staff Augmentation
10% Cloud Consulting & SI
AI Summary
“Ampersand delivers comprehensive technology solutions in Alaska, specializing in cybersecurity, enterprise software integration, hybrid cloud hosting, and global broadband to support organizational growth.”

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Top Legacy System Modernization Firms

List of the Best Legacy System Modernization Agencies

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