Company lists · Data refreshed September 2026
Top 25 Hvac training programs based in the United States
RevenueBase identified 150 hvac training programs headquartered in the United States as of September 2026 and tracks 1,667 professional contacts across them, including 465 with verified work emails. Phoenix is the largest hub.
This list covers hvac training programs 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 training programs based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 162 contacts → | ||||
Indirect evidence “Welcome to ESCO, your gateway to the dynamic world of HVACR and building science, where innovation and knowledge shape the industry's future.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 84 contacts → | ||||
Partial evidence “Team of HVAC Professionals: Leading & Serving the Industrial & Commercial HVAC Industry Our mission is to be the LEADER in each aspect of our business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 83 contacts → | ||||
Partial evidence “Insight Partners: Revolutionizing the HVAC Industry with World-Class Solutions At Insight Partners, we are innovators, pioneers, and problem-solvers in the commercial HVAC…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 82 contacts → | ||||
Indirect evidence “For over 90 years, United Air Temp has been leading the Heating, Air Conditioning, Plumbing and Electrical Industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 66 contacts → | ||||
Indirect evidence “For nearly three decades, NTT has successfully trained nearly employees at thousands of American companies and government agencies in locations around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 56 contacts → | ||||
Partial evidence “At National Training Institute we offer career-focused training.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 50 contacts → | ||||
Partial evidence “Empowering Careers Through Hands-On Training Our institution is dedicated to equipping students with the skills needed for in-demand careers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 41 contacts → | ||||
Indirect evidence “City Mechanical is the brainstorm of Russell L.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 37 contacts → | ||||
Partial evidence “Since 1933, Refrigeration Service Engineers Society (RSES) has been a leader in training and education for professional HVACR technicians and contractors.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 34 contacts → | ||||
Indirect evidence “Since 1944, the Lane Associates' mission is to provide our clients with customized solutions for their individual heating, air conditioning and ventilation needs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 contacts → | ||||
Partial evidence “J&J Air Conditioning began in 1978 with only two service technicians offering basic HVAC maintenance and repair.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Partial evidence “Private non-profit vocational training institution.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 26 contacts → | ||||
Indirect evidence “The skilled trades are the backbone of the modern economy, but the talent pipeline is broken.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 25 contacts → | ||||
Partial evidence “AC Service Tech creates educational HVACR Training resources such as videos, articles, tips, books, ebooks, Powerpoints, posters, calculators, and quizzes to equip those hungry to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Indirect evidence “In 1976, recognizing the increasing complexity of HVACR equipment and the cost/time involved in obtaining on-shore contractor service personnel, Nance created the Nance Universal…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Indirect evidence “Founded in 1990, the National Association of Power Engineers (NAPE) Educational Foundation is an IRS 501(c)(3) non-profit organization created to provide traditional and emerging…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Partial evidence “The world's #1 success college for HVAC Contractors.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Strong evidence “we are an industry-leading training company that offers comprehensive coaching and training solutions to help owners of air conditioning and heating (HVAC) companies across the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Partial evidence “NSC APG (Applied Product Group) is comprised of HVAC commercial and residential specialists based in St.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 contacts → | ||||
Indirect evidence “When you hire POLAIR, you’re hiring professionals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Indirect evidence “For over 60 years Turner School has been a leader in continuing education for Commercial and Industrial Building Operations and Management.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Indirect evidence “The AirPlus team is well known for providing excellent service, doing each job right the first time, on time and within budget.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Indirect evidence “We at Virginia Technical Academy recognize the need for a skilled and well educated workforce.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10 contacts → | ||||
Strong evidence “All of our HVAC pros go through 5 years of HVAC schooling-for a total of hours of on-the-job training.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 contacts → | ||||
Partial evidence “is your source for the best online HVAC community on the internet, at least in our humble opinion.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hvac training programs. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names hvac training programs.
- Partial evidence
- Its own public description names part of hvac training programs, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hvac training programs. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 150 hvac training programs based in the United States
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Hvac training programs based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 150 companies.
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 training programs, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 training programs”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hvac training programs), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among hvac training programs, 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 its RevenueBase Smart Search 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, 465 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 20, 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.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hvac training programs, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many hvac training programs are there based in the United States?
RevenueBase identified 150 hvac training programs 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?
Esco Institute-Hvac Excellence, headquartered in Mount Prospect, tops this list with the largest team on record.
Which city has the most hvac training programs?
Phoenix leads with 8 headquartered companies, followed by Nashville (5) and Houston (4).
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 465 verified decision-maker contacts tracked across these 150 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 20, 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 Smart Search, 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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