Company lists · Data refreshed September 2026

Top 25 Hvac contractors based in Houston, United States

Name: Hvac contractors based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 232 companies tracked

RevenueBase identified 232 company matches for hvac contractors associated with Houston, United States as of September 2026 and tracks 4,268 professional contacts across them, including 1,642 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for hvac contractors associated with Houston, 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

232Companies

4,268Contacts tracked

1,642Verified emails

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The 25 largest hvac contractors based in Houston, United States

Ranked by team size

Top 25 of 232 company matches for hvac contractors based in Houston, 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	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
2	Kilgore Industries, LP	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	501-1,000	255 contacts →
	Exact match “Kilgore Industries, LP offers turnkey mechanical contracting services including electrical and plumbing construction solutions.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3	WAY Engineering, LTD	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	501-1,000	175 contacts →
	Exact match “Way Engineering's quest for building excellence began in 1918 when a modest, but dedicated refrigeration business opened its doors in Houston, Texas.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	John Moore Services	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	142 contacts →
	Exact match “Family Owned & Operated since 1965 John Moore Services is a Plumbing, Air Conditioning & Electrical company in Houston, Texas.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	Abacus Plumbing, AIR Conditioning & Electrical	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	201-500	138 contacts →
	Exact match “We offer superior plumbing, air conditioning, and electrical services to Residential and Commercial clients in Houston,TX.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	Custom AIR Products & Services, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	201-500	114 contacts →
	Exact match “Custom Air Products & Services, Inc.(CAPS), an AirX Climate Solutions company, is a full-service HVAC company that specializes in the design, construction, installation…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	Century A C Supply	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	201-500	102 contacts →
	Exact match “Century A/C Supply is a wholesale distributor of HVAC equipment and supplies whose mission is to be an employee-driven company providing customers with service beyond expectations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	Gray Mechanical Contractors, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	88 contacts →
	Exact match “Gray Mechanical Contractors is a licensed HVAC and Plumbing contractor providing construction services for General Contractors and building owners throughout Texas.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	Raven Mechanical, LP	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	72 contacts →
	Exact match “Raven Mechanical, founded 1979, is a full service mechanical contractor specializing in Plumbing and HVAC service and construction.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	Hometown Services	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	1,001-5,000	67 contacts →
	Exact match “When it comes to maintaining comfort, keeping the lights on and water flowing, no one can compete with hometown heroes.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	DWD International, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	64 contacts →
	Exact match “Founded in 1974, DWD International designs, manufactures, installs, and maintains industrial HVAC, pressurization, filtration and control systems that can withstand the most…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	CFI Mechanical, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	201-500	63 contacts →
	Exact match “CFI Mechanical was founded in Sugar Land, Texas in April 1996.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	Smartac.com, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	50 contacts →
	Exact match “COMFORT WITHOUT CONCERN™ We’re on a mission to perfect the experience of home comfort.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	Har-Con Mechanical	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	50 contacts →
	Exact match “Founded in 1955, HAR-CON is a full service mechanical contractor well versed in Plumbing and HVAC.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	WAY Companies	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	42 contacts →
	Exact match “Way Companies is a full-service commercial and industrial HVACR contractor delivering mechanical design-build, preventative maintenance, emergency service, retrofits, and building…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	Comfort Systems USA	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	41 contacts →
	Exact match “As a leading HVAC retrofit, design, build, and services firm based in Houston, Comfort Systems USA - South Central specializes in installing, maintaining, and upgrading mechanical…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	RDI Mechanical	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	39 contacts →
	Exact match “Since RDI Mechanical has been Houston's go-to commercial HVAC and mechanical contractor.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	Roessler Equipment Company	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	32 contacts →
	Exact match “Founded in 1963, Roessler Equipment Company is the leading supplier of commercial HVAC products in the Houston, Texas region.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	Infinity Systems, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	30 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	Delta T Equipment	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	28 contacts →
	Exact match “Delta T Equipment was founded in January of 2005 after it was recognized that there was a need for a customer service oriented agency that could represent quality HVAC and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	K&r Mechanical Services LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	26 contacts →
	Exact match “We are a full-service commercial HVAC mechanical contractor with over 35 years of experience in the field.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	United States Home Services	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	25 contacts →
	Exact match “At our company, we specialize in offering comprehensive heating and cooling services to ensure optimal comfort in every season.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23	CSNA	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	24 contacts →
	Exact match “Founded in 2012, Consolidated Services of North America (CSNA) has developed into one of the fastest growing facility service companies in the Gulf Coast Region.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	Comflow Mechanical Services	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	23 contacts →
	Exact match “Established in 2005, Comflow Mechanical Services is a leading provider in commercial HVAC services in Houston, Tx.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25	Thermal Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	23 contacts →
	Exact match “Thermal Corporation, a division of Nailor International, Inc, has manufactured high-quality, custom air handling equipment since 1945.” 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 “hvac 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 232 hvac contractors based in Houston, United States

See the full list, filter by size, metro and specialty, and access 1,642 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac contractors based in Houston, United States at a glance

As of Sep 16, 2026

38.5%Verified-email coverage

18.4Average contacts per company

11-50Median size (employees)

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

100

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 232 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 Houston, United States whose business descriptions match “hvac 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 1,642 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.

Hvac contractors by metro in the United States

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 “hvac contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac contractors are there based in Houston, United States?

RevenueBase identified 232 company matches for hvac contractors associated with Houston, 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?

Comfort Systems USA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most hvac contractors?

Houston leads the United States with 232 company records, followed by New York (166) and Phoenix (120).

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 1,642 professional contacts with verified work emails tracked across these 232 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.