Company lists · Data refreshed September 2026
Top 25 Hvac software development companies based in the United States
RevenueBase identified 3,502 hvac software development companies headquartered in the United States as of September 2026 and tracks 61,066 professional contacts across them, including 21,974 with verified work emails and 24,614 with mobile numbers. New York is the largest hub.
This list covers hvac software development companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest hvac software development companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | LennoxIndirect evidence | 4,693 | |||
“Lennox (NYSE: LII) is a leading provider of innovative climate control solutions for heating, ventilation, air conditioning, and refrigeration (HVACR) markets.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,214 | ||||
“Daikin Applied delivers superior air quality and energy efficiency to every solution with innovation in advanced technology, IoT, and next generation compressors.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,378 | ||||
“Since 1982, Goodman Manufacturing has had one goal: provide customers with reliable, high-quality, energy-efficient, and affordable indoor comfort products.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,196 | ||||
“Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 925 | ||||
“At BAC, we don’t just build cooling systems, we shape the future of sustainable solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 865 | ||||
“Climatec has been making buildings safer, more comfortable and efficient for over 40 years.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 749 | ||||
“CoolSys solves the most complex challenges in refrigeration, air conditioning, heating, engineering, and energy management.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 685 | ||||
“Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 464 | ||||
“Since 1965, LONG has been in the business of building performance; making them automated, efficient, green, and safe.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 440 | ||||
“Since 1947, Hoffman & Hoffman, Inc.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 350 | ||||
“Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | United MechanicalPartial evidence | 344 | |||
“United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 325 | ||||
“Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 284 | ||||
“ATS, established in 1986, specializes in custom engineered and installed Building Automation Systems control solutions for buildings’ mechanical and electrical systems, allowing…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 217 | ||||
“Trane® is a world leader in air conditioning systems, services and solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 213 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 209 | ||||
“Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 208 | ||||
“At Gardiner, we've gotten used to clients being shocked by everything we can do to improve a building.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 201 | ||||
“Haynes Mechanical Systems has been keeping commercial buildings running strong since 1968.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 185 | ||||
“MAXAIR Mechanical, founded in 1988, is a people first company.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 182 | ||||
“Established in 2004, Alliance Air Products designs and manufactures custom HVAC solutions to meet any specification, including the most demanding commercial and industrial…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | US AIR Conditioning DistributorsIndirect evidence | 181 | |||
“US Air Conditioning Distributors, Inc.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 171 | ||||
“Fidelity Building Services Group (Fidelity) is one of the nation’s leading providers of HVAC/Mechanical Services, Building Automation, Emergency Power, and Energy Solutions…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 168 | ||||
“AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 159 | ||||
“Engineered Cooling Services is the Southeast’s leading energy and HVAC services company headquartered in Pensacola, FL with local offices in Mobile, Montgomery, Birmingham…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 3,502 hvac software development companies based in the United States
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Hvac software development companies based in the United States at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hvac software development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “hvac software development companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among hvac software development companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 21,974 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Hvac software development companies by metro
- Hvac software development companies in New York70
- Hvac software development companies in Houston63
- Hvac software development companies in Miami30
- Hvac software development companies in Phoenix25
Frequently asked
How many hvac software development companies are there based in the United States?
RevenueBase identified 3,502 hvac software development companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Lennox, headquartered in Richardson, tops this list with the largest team on record.
Which city has the most hvac software development companies?
New York leads with 70 headquartered companies, followed by Houston (63) and Miami (30).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 21,974 verified decision-maker contacts tracked across these 3,502 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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