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

Winget Software
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Our goal is to create innovative and cost-effective software solutions that streamline and improve the operations of startups and small to medium-sized businesses. We aim to turn their ideas into successful outcomes through tailored technologies and top-notch services, helping them reach their objec
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Alvorada, Br
Services Provided+7 Services
5% Frontend Development
5% Backend Development
7% Custom Web Application Development
13% Mobile App Development (iOS & Android)
AI Summary
“Winget Software develops innovative, cost-effective software solutions tailored to startups and SMEs, enhancing operational efficiency and accelerating achievement of business goals with quality services.”
D-Teq Solution
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Welcome to our agency! We are a team of experienced IT professionals specializing in DevOps, cloud migration, cloud architecture, and web application development utilizing a variety of advanced technologies. With over 6 years of industry experience, we have successfully delivered numerous projects a
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Ahmedabad, Gujarat, In
Services Provided+11 Services
3% CMS Development & Customization
6% Frontend Development
3% Legacy System Modernization
6% Backend Development
AI Summary
“D-Teq Solution delivers comprehensive IT services including custom web development, cloud infrastructure, DevOps, AI-driven automation, and digital marketing to optimize business performance globally.”
CASoft Seattle
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
CASoft Seattle supports businesses and non-profits in the Pacific Northwest by providing a blend of managed IT services and software development. Our tailored strategy guarantees smooth integration and promotes business growth. Whether it's an IT project, maintenance support, or software development
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided+8 Services
11% Custom Web Application Development
5% QA & Software Testing
6% Mobile App Development (iOS & Android)
3% Legacy System Modernization
AI Summary
“CASoft Seattle offers comprehensive managed IT services and custom software development to Pacific Northwest businesses and non-profits, ensuring seamless integration, efficient operations, and tailored growth solutions.”
Centare
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Centare is a consultancy specializing in the development of cloud software products, having established robust partnerships for over 20 years based on trust, transparency, and outstanding results. Our distinctive blend of cloud expertise, engineering, quality assurance, product management, and desig
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Brookfield, Wisconsin, Us
Services Provided+3 Services
12% Backend Development
14% Custom Web Application Development
5% Frontend Development
3% Legacy System Modernization
AI Summary
“Centare is a trusted consultancy with 20+ years in cloud software development, delivering tailored digital products and modernization solutions as an AWS Advanced and Microsoft Gold Partner.”
ADVANTE DIGITAL
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Advante Digital is a professional software development firm that focuses on creating web, mobile, desktop, and hybrid applications. Additionally, we provide cloud deployment services across all platforms, including iOS, macOS, Windows, and Android.
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
10-49
Employees
Services Provided+4 Services
25% Software Development Services
25% Web App UI Design
20% Mobile App Development (iOS & Android)
10% Custom Web Application Development
AI Summary
“Advante Digital specializes in developing professional web, mobile, desktop, and hybrid applications, offering comprehensive cloud deployment services across iOS, macOS, Windows, and Android platforms.”
Sersy Associates Ltd
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Located in North London, our dedicated team of software professionals offers technology and software consultancy services. Founded in 2012, we are committed to providing innovative, cost-effective, and user-friendly software solutions that boost business productivity and efficiency. We believe that
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
23% Custom Web Application Development
7% Mobile App Development (iOS & Android)
3% Legacy System Modernization
14% AI Strategy & Roadmap Consulting
AI Summary
“Sersy Associates Ltd., based in North London, provides innovative, tailored software consultancy services with 24/7 support, serving diverse sectors across the UK, Europe, and the Middle East.”
souqbox
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We have developed solutions for clients in various B2B workflow applications, including risk management, human performance, and e-commerce ERP and CRM. Our expertise lies in SaaS-based, web-accessible models, along with related technical areas such as cloud computing, security, and mobile optimizati
Highlights
$50-99/hr
Avg Hourly Rate
10-49
Employees
Reading, Berkshire, Gb
Services Provided+18 Services
5% E-Commerce Development
3% API Development & Integration
2% Legacy System Modernization
5% ERP & CRM Development
AI Summary
“Souqbox offers SaaS-based B2B solutions encompassing risk management, human performance, and e-commerce ERP/CRM, leveraging cloud, security, and mobile technologies with flexible global collaboration.”
ElifTech
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
At ElifTech, we don't merely create software; we foster progress. With more than ten years of expertise, our talented engineers and solution architects assist ambitious organizations in transforming intricate challenges into scalable, impactful digital solutions. We handle the entire product lifecyc
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Lviv, Lviv, Ua
Services Provided+14 Services
7% Custom Web Application Development
5% Mobile App Development (iOS & Android)
3% E-Commerce Development
5% Backend Development
AI Summary
“ElifTech specializes in comprehensive digital solutions, including software engineering, QA, design, cloud, and maintenance, serving diverse industries with scalable, secure innovations and expert consulting.”
Level Up Development
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Level Up Development assists its partners in achieving success by providing tailored software solutions that uncover new opportunities or address significant challenges. With expertise in areas like strategy, post-launch optimization, and workforce transformation, their Software Development as a Ser
Highlights
$50,000+
Min Project Size
10-49
Employees
Indianapolis, Indiana, Us
Services Provided+6 Services
10% Custom Web Application Development
7% Mobile App Development (iOS & Android)
2% Blockchain & Web3 Development
8% Backend Development
AI Summary
“Level Up Development delivers tailored software solutions and SDaaS teams, offering strategy, optimization, and workforce transformation expertise to address complex business challenges effectively.”
Leokraft Technologies Private Limited
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Leokraft Technologies is a B2B software solutions provider that specializes in creating, implementing, and managing IT infrastructure for businesses. We develop applications aimed at helping enterprises modernize using cutting-edge technologies. Our solutions facilitate the integration of diverse bu
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Bengaluru, Karnataka, In
Services Provided+13 Services
3% Mobile App Development (iOS & Android)
6% Legacy System Modernization
6% ERP & CRM Development
3% E-Commerce Development
AI Summary
“Leokraft Technologies offers B2B IT infrastructure and software solutions, developing applications that integrate business processes, modernize operations, and enable advanced data analysis for enterprises.”

...

...

...

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.