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

Stormotion
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Stormotion specializes in developing mobile and web digital solutions across various sectors, including IoT and smart home, fitness and wellbeing, electric vehicles and mobility, healthcare, and BLE and connectivity. We utilize AI, machine learning, and advanced technologies to design secure, future
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Tallinn, Harju, Ee
Services Provided+7 Services
7% Legacy System Modernization
16% Mobile App Development (iOS & Android)
10% Custom Web Application Development
10% Wireframing & Prototyping
AI Summary
“Stormotion delivers end-to-end mobile and web development integrating AI and IoT across sectors like healthcare, fitness, and mobility, crafting secure, user-friendly digital solutions.”
Tatvamasi Labs
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Tatvamasi Labs is a certified Odoo Silver Partner providing comprehensive ERP services, including implementation, customization, data migration, system integration, and ongoing support for businesses across various sectors and locations. We collaborate with organizations facing genuine operational c
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Services Provided
40% Custom Web Application Development
10% Mobile App Development (iOS & Android)
30% Legacy System Modernization
20% API Development & Integration
AI Summary
“Tatvamasi Labs is an Odoo Silver Partner offering end-to-end ERP solutions including implementation, customization, data migration, integration, and ongoing support for diverse businesses.”
Datascience9 LLC
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Datascience9 offers software modernization by uniquely blending code automation with Generative AI. Our approach automates the transformation of repetitive code and employs GenAI to assess, refactor, document, and update intricate legacy systems. This leads to a quicker and more dependable transitio
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+1 Services
5% Custom Web Application Development
5% E-Commerce Development
10% API Development & Integration
30% Legacy System Modernization
AI Summary
“Datascience9 LLC specializes in software modernization, leveraging code automation and Generative AI to efficiently transform legacy systems into secure, scalable, cloud-ready enterprise platforms.”
TYMIQ
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We are a seasoned IT service provider that offers a comprehensive range of solutions, ensuring lasting value for your business. Our team specializes in the complete development process of high-load enterprise systems, web and mobile applications, IoT solutions, and IT outsourcing. We prioritize your
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Warszawa, Masovian, Pl
Services Provided
25% Legacy System Modernization
50% Custom Web Application Development
25% Mobile App Development (iOS & Android)
AI Summary
“TYMIQ delivers comprehensive IT services including custom software development, software reengineering, IT consulting, outsourcing, and dedicated teams, ensuring tailored, high-quality solutions for diverse business needs.”
CAMBED Systems
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CAMBED Systems is a company specializing in cloud consulting and software products, providing a comprehensive range of cloud development services for various businesses. Our expertise includes services such as cloud-managed solutions, consulting for GCP/Azure/AWS, DevOps consulting, cloud migration,
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
10% AI Strategy & Roadmap Consulting
17% Machine Learning Model Development
7% Cloud Consulting & SI
10% Cloud Infrastructure Setup (AWS / GCP / Azure)
AI Summary
“CAMBED Systems delivers comprehensive cloud consulting, software development, AI-driven automation, and managed infrastructure services across AWS, GCP, and Azure to support diverse business needs.”
Altkom Software
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Enhancing finance through technology Assisting finance in staying relevant with adaptive, scalable technology that provides enduring value. The finance sector is undergoing significant transformation due to digital disruption, regulatory changes, and increasing expectations. We support financial i
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
250-999
Employees
Warszawa, Masovian, Pl
Services Provided
45% Software Development Services
20% Legacy System Modernization
20% Mobile App Development (iOS & Android)
15% Cloud Consulting & SI
AI Summary
“Altkom Software delivers tailored, scalable digital solutions for banking, insurance, and leasing, enabling financial institutions to navigate transformation and achieve measurable business value.”
Chiron IT
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Chiron IT provides more than just technology-based services; we assist large enterprises and government organizations in enhancing their collaboration environments and boosting employee productivity by up to four times. We facilitate integrations with third-party services and tailor solutions that c
Highlights
10-49
Employees
Irvine, California, Us
Services Provided+1 Services
23% Legacy System Modernization
10% Custom Web Application Development
20% Cloud Consulting & SI
14% AI Strategy & Roadmap Consulting
AI Summary
“Chiron IT delivers customized software development, AI-driven automation, and comprehensive IT infrastructure services, enabling enterprises and governments to enhance productivity, modernize systems, and ensure efficient cloud migration.”
iMentus Technologies
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iMentus Technologies is a reliable technology consulting firm that offers AI and Blockchain solutions aimed at enhancing business outcomes for both startups and established enterprises. The iMentus team possesses extensive expertise in helping startups validate their ideas, develop a Minimum Viable
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Indore, Madhya Pradesh, In
Services Provided+1 Services
10% IT Staff Augmentation
28% Custom AI Chatbot Development
12% Machine Learning Model Development
20% Blockchain & Web3 Development
AI Summary
“iMentus Technologies specializes in AI and Blockchain consulting, supporting startups in product development and enterprises in business-driven solutions to enhance performance and efficiency.”
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Beveron Technologies
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Beveron Technologies is the top legaltech company in the Middle East, headquartered in Dubai Business Bay. The company primarily concentrates on the digitization and automation of law firms, in-house legal departments, debt collection, and intellectual property within the region. Brijesh Chedayan, a
Highlights
$250,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Dubai, Dubayy, Ae
Services Provided
75% Custom Web Application Development
25% Legacy System Modernization
AI Summary
“Beveron Technologies, based in Dubai, specializes in innovative legaltech solutions, digitizing and automating law firms, in-house legal teams, debt collection, and intellectual property across the Middle East.”
Neurointeractive
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**About Neurointeractive: Where Innovation Meets Impact** At Neurointeractive, we design impactful digital experiences. As a leading UI/UX studio, we focus on creating intuitive, user-friendly, and visually appealing interfaces. With more than 20 years of experience, we have partnered with internat
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Sydney, New South Wales, Au
Services Provided+8 Services
7% Interaction Design
5% Product UX Strategy
5% UX Research & Usability Testing
5% UX Audit & Heuristic Evaluation
AI Summary
“Neurointeractive is a premier UI/UX studio delivering tailored, innovative digital experiences that enhance user engagement, simplify complex challenges, and drive business growth for diverse global clients.”

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Top Legacy System Modernization Firms

List of the Best Legacy System Modernization Agencies

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