Company lists · Data refreshed September 2026

Top 25 Heating and cooling manufacturers based in the United States

Name: Heating and cooling manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 9,773 companies tracked

RevenueBase identified 9,773 heating and cooling manufacturers headquartered in the United States as of September 2026 and tracks 149,607 professional contacts across them, including 44,851 with verified work emails. Houston is the largest hub.

This list covers heating and cooling manufacturers 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 16, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

9,773Companies

149,607Contacts tracked

44,851Verified emails

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The 25 largest heating and cooling manufacturers based in the United States

Ranked by team size

Top 25 of 9,773 heating and cooling manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to heating and cooling manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	A. O. Smith Corporation	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	10001+	15,266 contacts →
	Indirect evidence “Celebrating its 150th year of business, A.” Source: RevenueBase Database · checked Sep 16, 2026
2	Daikin Applied Americas	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 16, 2026	10001+	4,204 contacts →
	Indirect evidence “Daikin Applied delivers superior air quality and energy efficiency to every solution with innovation in advanced technology, IoT, and next generation compressors.” Source: RevenueBase Database · checked Sep 16, 2026
3	Rheem Manufacturing Company	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	10001+	3,410 contacts →
	Indirect evidence “For 100 years, Rheem has stood as a trusted partner for residential and commercial innovations.” Source: RevenueBase Database · checked Sep 16, 2026
4	Modine Manufacturing Company	Indirect evidence	Racine, WI, United StatesHQ checked Sep 16, 2026	10001+	2,927 contacts →
	Indirect evidence “Since 1916, Modine Manufacturing Company has applied innovative thermal technology to meet customer's needs.” Source: RevenueBase Database · checked Sep 16, 2026
5	Johnstone Supply	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,664 contacts →
	Indirect evidence “Making it easier for HVACR contractors to do business.” Source: RevenueBase Database · checked Sep 16, 2026
6	Goodman AIR Conditioning & Heating	Indirect evidence	Waller, TX, United StatesHQ checked Sep 16, 2026	10001+	2,375 contacts →
	Indirect evidence “Since 1982, Goodman Manufacturing has had one goal: provide customers with reliable, high-quality, energy-efficient, and affordable indoor comfort products.” Source: RevenueBase Database · checked Sep 16, 2026
7	Gentherm	Indirect evidence	Novi, MI, United StatesHQ checked Sep 16, 2026	10001+	2,274 contacts →
	Indirect evidence “As a global market leader of innovative thermal management and pneumatic comfort technologies for the automotive industry and a leader in medical patient temperature management…” Source: RevenueBase Database · checked Sep 16, 2026
8	Carrier Enterprise	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,891 contacts →
	Indirect evidence “Carrier Enterprise is a joint venture between Watsco, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
9	Aaon, INC	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,208 contacts →
	Indirect evidence “Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.” Source: RevenueBase Database · checked Sep 16, 2026
10	United Refrigeration, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,046 contacts →
	Indirect evidence “United Refrigeration Inc.” Source: RevenueBase Database · checked Sep 16, 2026
11	Baltimore Aircoil Company	Partial evidence	Jessup, MD, United StatesHQ checked Sep 16, 2026	1,001-5,000	906 contacts →
	Partial evidence “At BAC, we don’t just build cooling systems, we shape the future of sustainable solutions.” Source: RevenueBase Database · checked Sep 16, 2026
12	Thermon	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	901 contacts →
	Partial evidence “Industrial Process Heating Solutions Through its global network, Thermon provides safe, reliable and innovative mission critical industrial process heating solutions.” Source: RevenueBase Database · checked Sep 16, 2026
13	Captiveaire Systems	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	891 contacts →
	Partial evidence “CaptiveAire® is the nation's leading manufacturer of commercial kitchen ventilation systems, and now provides a complete solution of fans, heaters, ductwork, and HVAC equipment.” Source: RevenueBase Database · checked Sep 16, 2026
14	R.E. Michel Company, LLC	Indirect evidence	Glen Burnie, MD, United StatesHQ checked Sep 16, 2026	1,001-5,000	873 contacts →
	Indirect evidence “The R.E.” Source: RevenueBase Database · checked Sep 16, 2026
15	Greenheck Group	Indirect evidence	Schofield, WI, United StatesHQ checked Sep 16, 2026	5,001-10,000	783 contacts →
	Indirect evidence “Greenheck Group is made up of team members who serve as leaders in air movement, control, and conditioning equipment, providing solutions across a range of applications and…” Source: RevenueBase Database · checked Sep 16, 2026
16	Coolsys	Partial evidence	Brea, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	750 contacts →
	Partial evidence “CoolSys solves the most complex challenges in refrigeration, air conditioning, heating, engineering, and energy management.” Source: RevenueBase Database · checked Sep 16, 2026
17	Bradford White	Strong evidence	Ambler, PA, United StatesHQ checked Sep 16, 2026	1,001-5,000	689 contacts →
	Strong evidence “Bradford White Corporation is an American-owned, full-line manufacturer of residential, commercial, and industrial products for water heating, space heating, combination heating…” Source: RevenueBase Database · checked Sep 16, 2026
18	Gemaire Distributors	Partial evidence	Deerfield Beach, FL, United StatesHQ checked Sep 16, 2026	501-1,000	581 contacts →
	Partial evidence “Gemaire is one of the largest independent distributor of heating, air conditioning, refrigeration equipment, parts and supplies in the world.” Source: RevenueBase Database · checked Sep 16, 2026
19	Evapco, INC	Partial evidence	Taneytown, MD, United StatesHQ checked Sep 16, 2026	1,001-5,000	569 contacts →
	Partial evidence “At EVAPCO, we are more than a manufacturer-we are a global team of employee-owners committed to delivering innovative heat transfer solutions for customers worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
20	ONE Hour Heating & AIR Conditioning	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	1,001-5,000	526 contacts →
	Partial evidence “When homeowners want a reliable heater or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning.” Source: RevenueBase Database · checked Sep 16, 2026
21	Texas Airsystems	Indirect evidence	Irving, TX, United StatesHQ checked Sep 16, 2026	201-500	523 contacts →
	Indirect evidence “In business for over 45 years, Texas AirSystems has grown to be recognized as one of the premier partners for commercial HVAC solutions in Texas, boasting over 500 associates…” Source: RevenueBase Database · checked Sep 16, 2026
22	Rinnai America Corporation	Indirect evidence	Peachtree City, GA, United StatesHQ checked Sep 16, 2026	201-500	513 contacts →
	Indirect evidence “Rinnai America Corporation, a subsidiary of Rinnai Corporation in Nagoya, Japan, was established in 1974 and is headquartered in Peachtree City, Georgia.” Source: RevenueBase Database · checked Sep 16, 2026
23	Lasko Products	Indirect evidence	West Chester, PA, United StatesHQ checked Sep 16, 2026	501-1,000	486 contacts →
	Indirect evidence “Our success is based on our culture of GRACE, with five core “Be” values outlining how we live it.” Source: RevenueBase Database · checked Sep 16, 2026
24	Mingledorff's	Indirect evidence	Norcross, GA, United StatesHQ checked Sep 16, 2026	501-1,000	483 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Gensco INC	Indirect evidence	Tacoma, WA, United StatesHQ checked Sep 16, 2026	501-1,000	481 contacts →
	Indirect evidence “Gensco, Inc.” Source: RevenueBase Database · checked Sep 16, 2026

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: heating and cooling manufacturers. 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 heating and cooling manufacturers.
Partial evidence: Its own public description names part of heating and cooling manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heating and cooling manufacturers. 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 9,773 heating and cooling manufacturers based in the United States

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Heating and cooling manufacturers based in the United States at a glance

As of Sep 16, 2026

30.0%Verified-email coverage

15.3Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

4,600

11-50

3,731

51-200

989

201-500

175

501-1,000

1,001-5,000

5,001-10,000

10001+

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 9,773 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 heating and cooling manufacturers, 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 “heating and cooling manufacturers”. 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 heating and cooling manufacturers), 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 heating and cooling manufacturers, 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, 44,851 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 16, 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.

Heating and cooling manufacturers by metro

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 heating and cooling manufacturers, 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 heating and cooling manufacturers are there based in the United States?

RevenueBase identified 9,773 heating and cooling manufacturers 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?

A. O. Smith Corporation, headquartered in Milwaukee, tops this list with the largest team on record.

Which city has the most heating and cooling manufacturers?

Houston leads with 129 headquartered companies, followed by New York (84) and San Antonio (65).

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 44,851 verified decision-maker contacts tracked across these 9,773 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 16, 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.