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

Technoduces Info Solutions Pvt Ltd
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Technoduces Info Solutions Pvt Ltd is a leading company in Custom Web and Mobile Application Development, offering services and solutions that drive digital transformation. Our dedicated team of over 70 professionals has been operating in the IT sector since 2011. We specialize in custom web and mob
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
P N Pudur, Tamil Nadu, In
Services Provided+1 Services
40% Custom Web Application Development
30% Mobile App Development (iOS & Android)
10% E-Commerce Development
15% Legacy System Modernization
AI Summary
“Technoduces Info Solutions Pvt Ltd, established in 2011, offers custom web and mobile app development, software modernization, and dedicated IT resources across diverse technologies globally.”
Naissus technologies
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
**Experienced Team** For over a decade, we have been developing enterprise software in the **Fintech** sector, establishing intricate systems from scratch. Our team remains robust, boasting an average seniority of over **7 years**. **Ideal Location** We enjoy favorable time overlaps globall
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Nis, Rs
Services Provided
40% Custom Web Application Development
25% Mobile App Development (iOS & Android)
20% QA & Software Testing
15% Legacy System Modernization
AI Summary
“Naissus Technologies delivers custom fintech software with a decade of expertise, specializing in event-driven microservices and FIX protocol, leveraging skilled Eastern European teams for quality and efficiency.”
Inventient
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Inventient assists small and medium-sized enterprises in achieving their objectives in the digital space. We focus on areas such as website development, e-commerce, CRM implementation, and automation. Our philosophy centers on a comprehensive approach to digital solutions, aiming to identify opportu
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
Saint Kilda East, Victoria, Au
Services Provided
20% Legacy System Modernization
30% E-Commerce Development
50% Cloud Consulting & SI
AI Summary
“Inventient empowers small and medium-sized enterprises with tailored digital solutions, including website development, e-commerce, CRM, and automation to drive growth and operational efficiency.”
Skipfour LLC
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Based in San Francisco, Skipfour employs over 125 associates worldwide. Our US team serves as the primary point of contact for customers, while our offshore team is also available as needed. The US team engages with clients daily to ensure projects stay on course and that any questions or requests a
Highlights
$5,000+
Min Project Size
10-49
Employees
Services Provided
50% Mobile App Development (iOS & Android)
30% Cloud Consulting & SI
20% Legacy System Modernization
AI Summary
“Skipfour LLC delivers high-quality software development and technology solutions, specializing in mobile apps, cloud consulting, and legacy modernization, serving diverse industries with global, client-focused expertise.”
REEA Global
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
AI-Powered Software Development for Companies Backed by Private Equity. A technology partner that recognizes the investment duration, strategies for value enhancement, and the urgency for swift results, all while reducing risk. We simplify the process for mid-market firms to comprehend, implement, a
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Baltimore, Maryland, Us
Services Provided+7 Services
7% Custom Web Application Development
5% Mobile App Development (iOS & Android)
4% E-Commerce Development
18% Legacy System Modernization
AI Summary
“REEA Global partners with private equity-backed mid-market firms to deliver AI-powered software solutions, enhancing value through automation, integration, cloud transformation, and legacy modernization with reduced risk.”
Ready4S
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We are a custom software and system integration firm with a decade of market experience, positioned as your nearshore technical partner. Located in Krakow, Poland—often referred to as the Polish "Silicon Valley"—we’re passionate about innovative technologies that yield exceptional results and enhanc
Highlights
$50,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Krakow, Lesser Poland, Pl
Services Provided+1 Services
35% Custom Web Application Development
15% Legacy System Modernization
25% Product UX Strategy
18% Interaction Design
AI Summary
“Ready4S is a Krakow-based custom software and system integration firm with a decade of experience, delivering comprehensive solutions including development, QA, and DevSecOps for diverse industries.”
C
Code Buster
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We create and deploy contemporary, business-focused, and user-friendly web portals to help businesses enhance their customer engagement. Our resources in Web Technology, Mobile Technology, and Digital Marketing are all integrated, eliminating the need to rely on multiple firms. Our proven process an
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Rajkot, Gujarat, In
Services Provided
30% Mobile App Development (iOS & Android)
30% Custom Web Application Development
20% E-Commerce Development
20% Legacy System Modernization
AI Summary
“Code Buster specializes in delivering integrated web and mobile technology solutions combined with digital marketing, enhancing business engagement through innovative, well-managed, and user-friendly platforms.”
Coretec Inc.
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Coretec specializes in creating and delivering tailored web and mobile applications for clients ranging from small businesses to large enterprises and digital product firms worldwide. We transform ideas into reality by developing software that meets various needs, whether it’s creating a custom appl
Highlights
$25,000+
Min Project Size
10-49
Employees
Services Provided
25% Software Development Services
25% Legacy System Modernization
25% Mobile App Development (iOS & Android)
25% Custom Web Application Development
AI Summary
“Coretec Inc. delivers tailored web and mobile software solutions using Agile methods, leveraging 25+ years of expertise to support clients from strategy to deployment globally.”
Neuserv
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Neuserv is a consulting and software services company that focuses on Systems Integration, Software Development, and Technical Advisory. We collaborate with a network of worldwide innovators, tools, technologies, and frameworks to create top-notch solutions that offer significant business benefits.
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided
40% Software Development Services
20% Other IT Consulting and SI
20% Legacy System Modernization
20% Custom Web Application Development
AI Summary
“Neuserv is a consulting and software services firm specializing in systems integration, software development, and technical advisory, delivering innovative solutions that drive business value globally.”
Bit Complete
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Bit Complete is a Toronto-based software firm. We develop products and offer consulting services to a range of early and mid-stage startups, assisting them in establishing their teams, products, and infrastructure. Our goal is to expedite product development and foster an environment conducive to ma
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
10-49
Employees
Services Provided
50% Custom Web Application Development
35% Mobile App Development (iOS & Android)
15% Legacy System Modernization
AI Summary
“Bit Complete is a Toronto-based software company providing development products and consulting to early and mid-stage startups, accelerating product creation and enabling sustainable technical decisions.”

...

...

...

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.