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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We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

4,482 Companies

List of the Best Legacy System Modernization Agencies

Microwee - Embedded Systems
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Microwee is an innovative research and development firm specializing in various engineering disciplines. Founded in 2015 by a small group of embedded engineers, the company's main goal is to design and assist in the development of cutting-edge products for its clients. Microwee collaborates closely
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Sarajevo, Federation Of Bosnia And Herzegovina, Ba
Services Provided+10 Services
5% Legacy System Modernization
8% Backend Development
10% API Development & Integration
13% Custom Web Application Development
AI Summary
“Microwee, founded in 2015, is a research and development firm specializing in embedded systems, offering comprehensive design, testing, and control solutions to support innovative product development.”
reyada capital
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Reyada Capital is a comprehensive software development company. We create, develop, and expand top-quality applications for everyone, from startups to large enterprises.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Dubai, Dubayy, Ae
Services Provided+5 Services
7% Legacy System Modernization
17% Custom Web Application Development
10% API Development & Integration
8% Other IT Consulting and SI
AI Summary
“Reyada Capital is a software development firm delivering high-quality applications, serving clients from startups to large enterprises across diverse industries with comprehensive solutions.”
Software Lighthouse
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**Software Lighthouse: Operational Summary** Software Lighthouse specializes in creating dependable digital systems to address intricate operational challenges. We streamline manual processes and disparate platforms by implementing organized software solutions. Our primary aim is functional: we dev
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Dhaka, Dhaka, Bd
Services Provided+5 Services
10% Custom Web Application Development
7% API Development & Integration
8% Mobile App Development (iOS & Android)
4% Legacy System Modernization
AI Summary
“Software Lighthouse delivers reliable, well-architected digital systems that streamline complex operations, leveraging disciplined processes, modern technologies, and clear communication to enhance business productivity.”
Grinder Crew
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We are a team of skilled individuals dedicated to finding effective solutions and driving digital transformation across all facets of life. Operating in a diverse setting that includes various religions and gender identities, we prioritize the quality of our products above all else. Our products hol
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Lublin, Lublin, Pl
Services Provided+9 Services
10% Custom Web Application Development
8% Mobile App Development (iOS & Android)
2% Legacy System Modernization
5% UX Research & Usability Testing
AI Summary
“Grinder Crew is a diverse, skilled team committed to delivering high-quality digital transformation solutions across various domains, emphasizing product excellence and inclusivity.”
Hex29
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Hex29 is a rising digital product development firm fueled by enthusiastic young IT professionals from Sri Lanka, delivering solutions across various industries. We take immense pride in our efforts, focusing on creating solutions that effectively address specific challenges and bring innovative idea
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Colombo, Western Province, Lk
Services Provided+8 Services
7% Custom Web Application Development
3% E-Commerce Development
5% Mobile App Development (iOS & Android)
3% Legacy System Modernization
AI Summary
“Hex29 is a Sri Lankan digital product development firm specializing in innovative solutions across industries, enhancing client-customer relationships through tailored technology and deep business insight.”
Networks Hub
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Networks HUB is a top provider of IT and networking solutions, delivering high-quality services in areas such as networking infrastructure, wifi planning, IPTV, web solutions, and more, all backed by a team of skilled experts to support our offerings.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Cairo, Cairo, Eg
Services Provided+4 Services
8% Backend Development
5% Legacy System Modernization
13% Custom Web Application Development
7% Frontend Development
AI Summary
“Networks HUB specializes in comprehensive IT and networking solutions, including infrastructure, WiFi planning, IPTV, and web services, supported by a skilled expert team ensuring high-quality delivery.”
Azerdon Ltd.
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Creation of online systems aimed at enhancing our clients' business operations.
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
40% Custom Web Application Development
30% Software Development Services
10% Machine Learning Model Development
5% E-Commerce Development
AI Summary
“Azerdon Ltd. excels in Software Development, delivering custom web applications, mobile apps, e-commerce platforms, and modernizing enterprise apps. Their strong development expertise enhances client business operations effectively.”
Nucleus Solutions
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We transform concepts into reality through our digital services, which include mobile applications, enterprise software, and UI/UX design. We specialize in creating tailored designs and developing digital products that are both functional and customized.
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Shah Alam, Selangor, My
Services Provided+2 Services
17% Mobile App Development (iOS & Android)
14% E-Commerce Development
3% Legacy System Modernization
28% Product UX Strategy
AI Summary
“Nucleus Solutions specializes in transforming ideas into customized digital products, offering mobile app development, enterprise software, and UI/UX design services to meet diverse client needs.”
AlignTogether Solutions Private Limited
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**AlignTogether Solutions: Driving Digital Transformation** AlignTogether Solutions is a worldwide IT services and product engineering firm that offers scalable and impactful digital solutions to enterprises, startups, and mission-oriented organizations across the globe. Since our inception in 2016
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Services Provided+3 Services
5% API Development & Integration
15% Custom Web Application Development
13% Mobile App Development (iOS & Android)
7% E-Commerce Development
AI Summary
“AlignTogether Solutions delivers advanced IT services and digital product engineering worldwide, specializing in scalable software development, AI/ML, cloud, IoT, and digital transformation across industries.”
Global Task
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Global Task is a Digital Transformation firm dedicated to empowering individuals and businesses through software solutions that help them realize their full potential. We develop digital experiences and enhance essential business software with top-notch service and exceptional IT talent. Our framewo
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
AAS, Ar
Services Provided+3 Services
17% Custom Web Application Development
14% Mobile App Development (iOS & Android)
3% Legacy System Modernization
23% Cloud Consulting & SI
AI Summary
“Global Task is a digital transformation firm delivering innovative software solutions through a skilled network, enhancing business operations and fostering growth across industries globally.”

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Top Legacy System Modernization Firms

List of the Best Legacy System Modernization Agencies

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