Top HVAC Legacy System Modernization Companies

Discover Legacy System Modernization companies serving the HVAC industry. Compare services, pricing, and capabilities to find the right partner on Edverise.

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

Top HVAC Legacy System Modernization Companies

Novatura
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We offer software development services to businesses seeking to innovate or expand in the technology sector. With a focus on contemporary web and cloud technologies, we create cost-effective and future-ready solutions.
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Lytchett Matravers, Gb
Services Provided+1 Services
15% API Development & Integration
15% Mobile App Development (iOS & Android)
40% Custom Web Application Development
15% QA & Software Testing
AI Summary
“Novatura delivers innovative software development services utilizing modern web and cloud technologies, enabling businesses to achieve cost-effective, scalable, and future-proof technology solutions.”
Done HQ
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We are a team of web experts dedicated to assisting marketers from rapidly growing companies that face numerous unresolved marketing challenges. These companies often lack in-house staff to address these issues, and recruiting new employees and establishing marketing processes can be resource-intens
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
10-49
Employees
Buffalo Grove, Illinois, Us
Services Provided+2 Services
35% Custom Web Application Development
8% Legacy System Modernization
8% CMS Development & Customization
20% Product UX Strategy
AI Summary
“Done HQ is a professional organization offering comprehensive solutions across multiple sectors, emphasizing quality and efficiency to meet diverse client needs with expertise and innovation.”
Resolute Software
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Resolute Software is an IT services firm that provides extensive software engineering development and consulting. The company emphasizes agile, continuous, and reliable delivery of solutions to help enhance your digital presence. Resolute Software supports businesses in modernizing, innovating, tran
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Sofia, Sofia, Bg
Services Provided+4 Services
5% Mobile App Development (iOS & Android)
13% Custom Web Application Development
8% Legacy System Modernization
10% Other IT Consulting and SI
AI Summary
“Resolute Software delivers agile IT services and software development, enabling digital transformation and innovation through expert consulting and tailored solutions for business success.”
CreateOS
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
CreateOS develops tailored AI solutions for product teams and large organizations. We manage the integration of large language models (LLMs), retrieval-augmented generation (RAG) pipelines, AI agents, and comprehensive automation from start to finish. Our services are supported by robust infrastruct
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+1 Services
18% Generative AI
22% AI Agent & Multi-Agent System Development
10% AI Strategy & Roadmap Consulting
35% Custom Web Application Development
AI Summary
“CreateOS delivers end-to-end AI solutions integrating large language models and automation for organizations, offering extensive infrastructure, fixed pricing, and full intellectual property ownership.”
NodeArt Soft Ukraine LLC
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
NodeArt Soft Ukraine LLC is a leading IT outsourcing company in Ukraine, located in the capital city of Kyiv and established in 2016. We create various types of applications, including web, mobile, and desktop solutions. By utilizing the complete range of Atlassian products, we ensure seamless and e
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Kyiv, Ua
Services Provided
40% Custom Web Application Development
40% Mobile App Development (iOS & Android)
10% E-Commerce Development
10% Legacy System Modernization
AI Summary
“NodeArt Soft Ukraine LLC, established in Kyiv in 2016, is a leading IT outsourcing company specializing in web, mobile, and desktop application development with efficient client communication.”
CodeCoda Ltd.
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
CodeCoda is an innovative provider of global IT and BPO services, solutions, and advanced software development, positioned within one of the fastest-growing industries globally. Founded by IT veterans, the company aims to create a stable work environment while maintaining a commitment to true custom
Highlights
$25,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Plovdiv, Plovdiv, Bg
Services Provided+1 Services
13% Mobile App Development (iOS & Android)
7% E-Commerce Development
25% Custom Web Application Development
5% Legacy System Modernization
AI Summary
“CodeCoda Ltd. delivers global IT and BPO solutions, specializing in advanced software development and AI, serving diverse industries with reliable outsourcing and long-term client partnerships.”
KorrAI
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
TRAIL is KorrAI's AI-driven platform designed for desktop risk assessments, investment choices, hazard detection, and ongoing monitoring throughout the entire project lifecycle. It consolidates geospatial data, geotechnical analyses, satellite InSAR data, catastrophe model results, and engineering d
Highlights
10-49
Employees
Halifax, Nova Scotia, Ca
Services Provided
15% AI Agent & Multi-Agent System Development
35% Custom AI Chatbot Development
40% API Development & Integration
10% Legacy System Modernization
AI Summary
“KorrAI's TRAIL platform integrates geospatial and engineering data with AI to support critical infrastructure risk assessments, investment decisions, and monitoring for diverse industries globally.”
EPixelSoft®
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
At EPixelSoft, we are dedicated to providing top-tier software solutions tailored to the specific needs of your business. With a strong emphasis on innovation, security, and scalability, our offerings are crafted to help you thrive in a rapidly changing digital environment. **Proven Expertise:** W
Highlights
$25,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Noida, Uttar Pradesh, In
Services Provided+4 Services
30% Software Development Services
10% Machine Learning Model Development
10% Cloud Consulting & SI
10% E-Commerce Development
AI Summary
“EPixelSoft delivers tailored, secure, and scalable software solutions across industries, leveraging advanced technologies and agile processes to enable global digital transformation and rapid market deployment.”
Elysium Ltd
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Elysium: The Reliable Leader in Enterprise Software, AI Development, and Sovereign Hosting Engineering since 1991. In an industry filled with AI-driven agencies and rapid prototyping services, Elysium provides something unique: experienced engineers who have successfully delivered production softwar
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Crowborough, England, Gb
Services Provided+1 Services
22% Custom Web Application Development
12% Legacy System Modernization
33% DevOps Engineering
23% AI Agent & Multi-Agent System Development
AI Summary
“Elysium Ltd. specializes in enterprise software, AI development, and sovereign hosting with experienced engineers, offering scalable, secure solutions including legacy modernisation and AI-powered infrastructure since 1991.”
ISHIR
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We assist leaders in AI-driven organizations by simplifying complex decisions and leveraging AI for tangible business benefits. Our approach combines strategic insight, digital product innovation, and expertise in AI engineering. We emphasize transformation across people, processes, products, and pl
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Dallas, Texas, Us
Services Provided+4 Services
30% Custom Web Application Development
13% Mobile App Development (iOS & Android)
8% Legacy System Modernization
15% AI Agent & Multi-Agent System Development
AI Summary
“ISHIR is a Dallas-based AI-native digital product innovation studio offering custom AI-driven software, data strategy, and global talent solutions to transform businesses and accelerate value delivery.”

...

...

...

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.