Company lists · Data refreshed September 2026

Top 25 Heating contractors based in the United States

Name: Heating contractors 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 14,556 companies tracked

RevenueBase identified 14,556 company matches for heating contractors associated with the United States as of September 2026 and tracks 120,592 professional contacts across them, including 35,906 with verified work emails. Houston is the largest hub.

This list covers company matches for heating contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 16, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 16, 2026 How this list was built

14,556Companies

120,592Contacts tracked

35,906Verified emails

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The 25 largest heating contractors based in the United States

Ranked by team size

Top 25 of 14,556 company matches for heating contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Johnstone Supply	Exact match	Portland, OR, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,664 contacts →
	Exact match “Making it easier for HVACR contractors to do business.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2	Comfort Systems USA	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	10001+	1,330 contacts →
	Exact match “Comfort Systems USA \| Quality People.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3	AHERN	Exact match	Fond Du Lac, WI, United StatesHQ recorded Sep 16, 2026	1,001-5,000	849 contacts →
	Exact match “Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	Chromalox	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	635 contacts →
	Exact match “When industrial operations depend on heat that simply cannot fail, Chromalox brings unmatched technical knowledge and high‑performance electric heating solutions that stand the…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	ONE Hour Heating & AIR Conditioning	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 16, 2026	1,001-5,000	526 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	Texas Airsystems	Exact match	Irving, TX, United StatesHQ recorded Sep 16, 2026	201-500	523 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	Mingledorff's	Exact match	Norcross, GA, United StatesHQ recorded Sep 16, 2026	501-1,000	483 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	Horizon Services, LLC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 16, 2026	501-1,000	448 contacts →
	Exact match “Horizon Services is the premier heating, air conditioning, plumbing, drain cleaning and sewer services company in Delaware (New Castle County & Kent County), Pennsylvania…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	Romanoff Group	Exact match	Gahanna, OH, United StatesHQ recorded Sep 16, 2026	1,001-5,000	431 contacts →
	Exact match “The Romanoff Group of Companies has been dedicated to providing specialized electrical, plumbing, and heating and cooling services since 1992.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Sep 16, 2026	501-1,000	415 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	Strada Services	Exact match	Sanford, FL, United StatesHQ recorded Sep 16, 2026	1,001-5,000	391 contacts →
	Exact match “Strada Services is a full service electrical, security, and air conditioning contracting company servicing residential, commercial, and industrial customers in Florida and in the…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	Superheat	Exact match	New Lenox, IL, United StatesHQ recorded Sep 16, 2026	501-1,000	376 contacts →
	Exact match “Superheat was founded on the principle that cutting-edge technology can offer a Better.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	Aire Serv Heating And AIR Conditioning	Exact match	Waco, TX, United StatesHQ recorded Sep 16, 2026	201-500	369 contacts →
	Exact match “For consumer services visit To discover more about franchise opportunities with Aire Serv® in your area visit Established in 1992, Aire Serv® is a global franchise organization…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	United Mechanical	Exact match	San Jose, CA, United StatesHQ recorded Sep 16, 2026	201-500	346 contacts →
	Exact match “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	Brady Services	Exact match	Greensboro, NC, United StatesHQ recorded Sep 16, 2026	501-1,000	340 contacts →
	Exact match “Since 1962, Brady has been committed to delivering innovative, sustainable building solutions that drive long-term success for our customers.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	Petro Home Services	Exact match	Stamford, CT, United StatesHQ recorded Sep 16, 2026	1,001-5,000	339 contacts →
	Exact match “We're America’s #1 local home heating oil and total home comfort services provider, with over 100 years experience helping customers save and keep comfortable at home.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	Parker & Sons	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 16, 2026	1,001-5,000	312 contacts →
	Exact match “Providing the Arizona Valley with award-winning service in Heating, Cooling, Plumbing, and Drain Cleaning Service since 1974.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	Villara Building Systems	Exact match	Mcclellan Park, CA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	303 contacts →
	Exact match “Villara is one of the nation’s largest mechanical contractors.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	Goettl AIR Conditioning & Plumbing	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 16, 2026	501-1,000	303 contacts →
	Exact match “At Goettl, our mission is to "Goettlize the Nation" by setting the industry standard in HVAC and plumbing services.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	John E. Green Company	Exact match	Highland Park, MI, United StatesHQ recorded Sep 16, 2026	1,001-5,000	301 contacts →
	Exact match “In 1909, John E.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	Kimbel Mechanical Systems INC	Exact match	Fayetteville, AR, United StatesHQ recorded Sep 16, 2026	501-1,000	297 contacts →
	Exact match “Kimbel Mechanical Systems, Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	SVM	Exact match	San Jose, CA, United StatesHQ recorded Sep 16, 2026	501-1,000	293 contacts →
	Exact match “SVM is a full service mechanical contractor, specializing in design-build commercial HVAC, plumbing, and service / maintenance, including 24-hour emergency services.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23	Worth & Company, INC	Exact match	Pipersville, PA, United StatesHQ recorded Sep 16, 2026	501-1,000	286 contacts →
	Exact match “Superior Customer Service.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	The Hill Group	Exact match	Franklin Park, IL, United StatesHQ recorded Sep 16, 2026	501-1,000	285 contacts →
	Exact match “The Hill Group is a Chicago-based mechanical contractor specializing in HVAC, plumbing, fire protection, testing/balancing, and commissioning.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25	Weil-Mclain	Exact match	Burr Ridge, IL, United StatesHQ recorded Sep 16, 2026	501-1,000	279 contacts →
	Exact match “Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “heating contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 14,556 heating contractors based in the United States

See the full list, filter by size, metro and specialty, and access 35,906 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heating contractors based in the United States at a glance

As of Sep 16, 2026

29.8%Verified-email coverage

8.3Average contacts per company

11-50Median size (employees)

1.2%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

6,720

11-50

5,831

51-200

1,520

201-500

205

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 14,556 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “heating contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 35,906 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Heating contractors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “heating contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heating contractors are there based in the United States?

RevenueBase identified 14,556 company matches for heating contractors associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Johnstone Supply tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heating contractors?

Houston leads with 172 company records, followed by New York (163) and San Antonio (98).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 35,906 professional contacts with verified work emails tracked across these 14,556 companies; direct dials are available where recorded.

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 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.