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

QuerySoftke Technologies limited
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QuerySoft Kenya is a leading information technology and web design firm in Kenya, offering innovative information communication technology (ICT) solutions, products, and services through cutting-edge technologies. We deliver timely business information solutions that encompass web design and hosting
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Nairobi, Ke
Services Provided+18 Services
9% Mobile App Development (iOS & Android)
6% E-Commerce Development
6% QA & Software Testing
4% Legacy System Modernization
AI Summary
“QuerySoftke Technologies Limited provides comprehensive ICT solutions including web design, software development, enterprise networking, and business training, delivering innovative technology services in Kenya.”
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Chamaka Infotech Private Limited
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At Chamaka Infotech, we strive to provide a seamless digital experience for your business operations. Our tailored and secure software solutions, combined with ongoing re-evaluation strategies, consistently enhance your business. By thoroughly analyzing your requirements and developing customized so
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Chennai, Tamil Nadu, In
Services Provided+8 Services
10% Custom Web Application Development
5% QA & Software Testing
3% Legacy System Modernization
5% Mobile App Development (iOS & Android)
AI Summary
“Chamaka Infotech delivers tailored, secure software solutions enhancing business operations through thorough analysis and continuous improvement, prioritizing client needs over generic offerings.”
Velocity Inc.
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We create and develop digital products and online experiences that assist our clients in their growth, innovation, and transformation. At Velocity, we prioritize listening, learning, and understanding before starting the development process. Together, we pinpoint your objectives and leverage our exp
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Toronto, Ontario, Ca
Services Provided+10 Services
3% Legacy System Modernization
3% CMS Development & Customization
6% Custom Web Application Development
4% E-Commerce Development
AI Summary
“Velocity Inc. delivers comprehensive digital solutions, combining software development, UI/UX design, IT infrastructure, AI, and consulting services to drive client growth and innovation.”
Heartburst
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We are an Australian digital agency focused on serving nonprofit organizations. Our expertise in design and technology is dedicated to helping the for-purpose sector engage with their supporters, meet their objectives, and enhance their impact. For over 18 years, we have collaborated with clients on
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Blackburn North, Au
Services Provided+8 Services
9% Custom Web Application Development
10% CMS Development & Customization
5% ERP & CRM Development
1% Legacy System Modernization
AI Summary
“Heartburst is an Australian digital agency specializing in nonprofit web design, digital strategy, CRM consulting, and user-centered solutions to enhance organizational impact and supporter engagement.”
billionX Innovative Software
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billionX Software is an innovative software and technology services company that focuses on Enterprise cloud and SaaS development. Our expertise includes Python, Ruby on Rails (PHP, JAVA, AWS, Azure), MEAN/MERN (Angular, Node.js, Express.js, React.js, Vue.js), and E-commerce development (Magento 2.x
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Sahibzada Ajit Singh Nagar, Punjab, In
Services Provided+11 Services
6% Backend Development
1% Legacy System Modernization
5% Mobile App Development (iOS & Android)
8% E-Commerce Development
AI Summary
“billionX Innovative Software specializes in enterprise cloud, SaaS, web, ecommerce, and mobile development using modern technologies, delivering tailored, agile solutions to optimize client business outcomes.”
VR TechnoSol
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At VR TechnoSol, our mission is to offer top-quality information technology products and services that empower organizations to continuously grow. We aim to provide straightforward solutions for intricate business processes, helping organizations achieve their objectives. Our focus goes beyond merel
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Ahmedabad, Gujarat, In
Services Provided+4 Services
14% Mobile App Development (iOS & Android)
17% Custom Web Application Development
3% Legacy System Modernization
8% IT Helpdesk & Support Services
AI Summary
“VR TechnoSol delivers user-friendly IT products and services designed to simplify complex business processes, helping organizations enhance productivity, generate leads, and achieve sustainable growth.”
Techivies Solutions
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We are a team of tech professionals with over 10 years of experience across a variety of web design and development services. Our expertise spans domains such as healthcare (medical), food services (restaurants), hotel/event booking, and insurance platforms, where we also offer customized solutions
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Ahmedabad, Gujarat, In
Services Provided+13 Services
6% Mobile App Development (iOS & Android)
1% Legacy System Modernization
5% API Development & Integration
3% ERP & CRM Development
AI Summary
“Techivies Solutions offers over 10 years of expertise in full-cycle web and mobile development, delivering customized digital solutions across healthcare, hospitality, insurance, and e-commerce sectors.”
Kovix
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Kovix is a digital transformation firm located in Argentina, specializing in retail, logistics, and digital product development. Our experience in creating custom TMS, WMS, and product development solutions for clients in the US, Mexico, and Argentina has equipped our team with profound insights int
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Services Provided+5 Services
20% Custom Web Application Development
13% Mobile App Development (iOS & Android)
5% Legacy System Modernization
13% API Development & Integration
AI Summary
“Kovix is an Argentina-based digital transformation firm specializing in custom software development, IT consulting, and mobile applications for retail, logistics, and manufacturing industries across the Americas.”
https://bharatdigitalmarketing.com/
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Broaden Your Presence in Noida's Digital Scene Bharat Digital Marketing, a top-rated Indian agency with a 4.5-star consumer rating, is now offering its expertise in Noida! Our extensive range of digital services includes SEO, SMO, PPC, SMM, and website design & development, designed to empower busi
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Services Provided+8 Services
10% Search Engine Optimization (SEO)
6% Social Media Marketing
5% Performance Marketing
3% Mobile & App Marketing
AI Summary
“Bharat Digital Marketing is a leading Indian agency offering comprehensive digital marketing services including SEO, PPC, SMM, and web development, empowering businesses in Noida and beyond to grow effectively.”
O3J
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O3J is a company focused on digital growth, transformation, and strategic development. We assist businesses in attracting more customers and increasing their sales by boosting bookings through their websites, social media channels, and AI-driven automation.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
18% E-Commerce Development
7% Legacy System Modernization
4% Other Digital Marketing
11% Search Engine Optimization (SEO)
AI Summary
“O3J specializes in digital growth and transformation, leveraging websites, social media, and AI automation to help businesses attract customers and increase sales effectively.”

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Top Legacy System Modernization Firms

List of the Best Legacy System Modernization Agencies

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