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.

How this list is built

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

Blueberry Health
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Blueberry Health focuses on creating innovative and effective solutions for the healthcare industry. We collaborate closely with clinicians, NHS organizations, and healthcare professionals to develop advanced software that consistently meets needs and genuinely improves the patient experience. Our m
Highlights
10-49
Employees
Services Provided
60% Custom Web Application Development
25% Mobile App Development (iOS & Android)
15% Legacy System Modernization
AI Summary
“Blueberry Health develops advanced healthcare software, collaborating with clinicians and NHS organizations to enhance inpatient management and improve patient care experience effectively.”
Xyram Software Solutions Pvt Ltd
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Founded in 2013, Xyram Software Solutions is a reputable boutique consulting firm focused on digital transformation. With over 100 successful projects and more than 30 satisfied clients, we have delivered significant value worth millions of dollars. Our expertise spans three main areas: (a) Healthca
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Bengaluru, Karnataka, In
Services Provided
38% Custom Web Application Development
12% Legacy System Modernization
50% IT Staff Augmentation
AI Summary
“Xyram Software Solutions, founded in 2013, delivers digital transformation services including healthcare platform integration, enterprise application consulting, and product incubation with strategic development expertise.”
Crowd Favorite
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Crowd Favorite aims to bridge the gap between digital interactions and human experiences. We are a specialized consulting firm that focuses on enterprise-level digital strategy, Open Source software development, and digital support services. Our offerings include: Digital Strategy, Open Source Web D
Highlights
$50,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Bucuresti, Bucuresti, Ro
Services Provided
24% Custom Web Application Development
10% Legacy System Modernization
33% Digital Strategy
33% AI Strategy & Roadmap Consulting
AI Summary
“Crowd Favorite is a specialized consulting firm delivering enterprise digital transformation through tailored digital strategy, open source software development, AI integration, and legacy system modernization.”
Impliway
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Impliway focuses on implementing Odoo ERP systems that address areas such as sales, finance, human resources, inventory, and manufacturing. Our certified consultants create customized solutions that streamline operations, reduce expenses, and enhance efficiency. With a strong track record in various
Highlights
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided
10% Legacy System Modernization
24% ERP & CRM Development
33% Operational Process Consulting
33% IT Compliance & Governance
AI Summary
“Impliway implements customized Odoo ERP solutions across sales, finance, HR, inventory, and manufacturing, enhancing efficiency, reducing costs, and enabling informed business decisions for sustainable growth.”
Five, an Endava company
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Five is a skilled organization with extensive expertise in leading product strategy, design, software development, and growth marketing, as well as optimizing user engagement. We adopt a comprehensive approach to create award-winning digital products that provide significant returns for our clients.
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
250-999
Employees
Brooklyn, New York, Us
Services Provided+3 Services
25% Product UX Strategy
15% Digital Strategy
15% Mobile & App Marketing
15% Mobile App Development (iOS & Android)
AI Summary
“Five, an Endava company, specializes in product strategy, design, development, and growth marketing, delivering award-winning digital solutions that drive engagement and business growth for global clients.”
ASP.Net Zero Developers
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Welcome to ASP.NET Zero Developers - Your Pathway to Cutting-Edge Web Application Development. At ASP.NET Zero Developers, we do more than just code; we design and innovate with excellence at our core. Our chief goal is to propel your business into the future by carefully developing web applications
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Lahore, Pk Punjab, Pk
Services Provided+4 Services
30% Software Development Services
10% API Development & Integration
10% QA & Software Testing
10% DevOps Engineering
AI Summary
“ASP.NET Zero Developers specializes in innovative, tailored web and mobile application development, leveraging certified expertise and flexible engagement models to deliver high-quality business solutions.”
Designer Websites
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Designer Websites is a welcoming website design firm and digital marketing agency based in Auckland, focusing on tailored web design and SEO services at competitive rates. We invest time in understanding your business to craft an appealing website that resonates with your target market. Users will e
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Auckland, Auckland, Nz
Services Provided+1 Services
20% Custom Web Application Development
14% Legacy System Modernization
23% Web App UI Design
10% Landing Page Design
AI Summary
“Designer Websites is an Auckland-based web design and digital marketing agency specializing in customized, user-friendly websites and effective SEO strategies at competitive prices.”
Lancom Technology
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We are a top IT firm catering to Australia and New Zealand, focusing on software development, application modernization, cloud services, managed services, and data insights & workflows to help businesses thrive while maximizing efficiency. We collaborate closely with some of the largest and most inn
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Auckland, Auckland, Nz
Services Provided+3 Services
15% Legacy System Modernization
10% Custom Web Application Development
23% Cloud Consulting & SI
2% IT Staff Augmentation
AI Summary
“Lancom Technology is a leading IT firm in Australia and New Zealand, specializing in software development, cloud and managed services, and data insights, partnering with global tech leaders.”
Done Technologies
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Established in 2000 as a part of Pyxis Technologies, Done Technologies is a custom software development firm that assists organizations in modernizing their operations, optimizing digital systems, and creating scalable technology solutions tailored to their unique business needs. We create and devel
Highlights
10-49
Employees
Laval, Quebec, Ca
Services Provided+2 Services
25% Custom Web Application Development
10% Mobile App Development (iOS & Android)
15% Legacy System Modernization
25% AI Strategy & Roadmap Consulting
AI Summary
“Done Technologies, established in 2000 within Pyxis Technologies, delivers custom software and digital platforms that modernize operations, automate tasks, and drive scalable, sustainable business growth.”
E2logy Software Solutions Private Limited
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Driving Success Through Customized Digital Solutions At E2logy, we empower businesses to thrive by providing intelligent and innovative technology solutions. With more than 19 years of expertise, we focus on areas such as AI Implementation, Workflow Automation, Legacy System Modernization, Software
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Ahmedabad, Gujarat, In
Services Provided+2 Services
17% Custom Web Application Development
7% Mobile App Development (iOS & Android)
10% Legacy System Modernization
13% Generative AI
AI Summary
“E2logy Software Solutions delivers tailored digital services including AI, automation, and legacy modernization, empowering global businesses with innovative technology and certified high-quality standards.”

...

...

...

Latest insights & expert perspectives

Explore data-backed surveys with inputs from top industry experts.

Stated minimum project sizes among the firms listed under software development services on Edverise, with the $50,000 band shaded

Vendor Selection

Questions to Ask a Software Development Agency: Six With Proof

A vetting script for second-round agency calls: six questions, the document each answer has to produce, and what a directory listing or a badge really proves.

Nihar Ranjan Rout

10/31/2026

Three software development quotes of $38,000, $94,000 and $210,000 converted to effective hourly rates of $79, $73 and $87.50

Vendor Selection

How to Compare Software Development Quotes Priced 5x Apart

Three bids for the same build are rarely comparable as written. A normalization checklist, a weighted grid adapted from FAR Part 15.3, and the hourly arithmetic.

Akash Mohapatra

10/31/2026

Chart of minimum project size stated by firms listed under AI agent development on Edverise, with the $50,000 band highlighted

Vendor Selection

AI Agent Development Cost: Build, Tokens, Reliability

An AI agent has three costs. Compute the monthly token bill from published list prices, then set the build quote against what listed firms actually charge.

Santanu Prasad Sahoo

10/31/2026

Check All Our Blogs

One Platform. One Promise. One Trust.

Edverise is building the trusted way to find tech vendors. List your company early, or talk to us about backing the platform.

Top Legacy System Modernization Firms

List of the Best Legacy System Modernization Agencies

Where buyers look next

Latest insights & expert perspectives

Questions to Ask a Software Development Agency: Six With Proof

How to Compare Software Development Quotes Priced 5x Apart

AI Agent Development Cost: Build, Tokens, Reliability

One Platform. One Promise. One Trust.