Company lists · Data refreshed September 2026

Top 25 Hvac businesses based in San Jose, United States

Name: Hvac businesses based in San Jose, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 57 companies tracked

RevenueBase identified 57 hvac businesses headquartered in San Jose, United States as of September 2026 and tracks 2,148 professional contacts across them, including 964 with verified work emails. Houston is the largest hub.

This list covers hvac businesses headquartered in San Jose, 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 21, 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 21, 2026 86% judged on-target in blind review

57Companies

2,148Contacts tracked

964Verified emails

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The 25 largest hvac businesses based in San Jose, United States

Ranked by team size

Top 25 of 57 hvac businesses based in San Jose, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to hvac businesses: 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	Therma	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	482 contacts →
	Indirect evidence “Therma is part of Legence, a Blackstone portfolio company, specially created to be an Energy Transition Accelerator™.” Source: RevenueBase Database · checked Sep 21, 2026
2	AIR Systems, INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	201-500	348 contacts →
	Indirect evidence “Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.” Source: RevenueBase Database · checked Sep 21, 2026
3	United Mechanical	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	201-500	346 contacts →
	Strong evidence “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Source: RevenueBase Database · checked Sep 21, 2026
4	SVM	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	501-1,000	293 contacts →
	Strong evidence “SVM is a full service mechanical contractor, specializing in design-build commercial HVAC, plumbing, and service / maintenance, including 24-hour emergency services.” Source: RevenueBase Database · checked Sep 21, 2026
5	Critchfield Mechanical, INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	201-500	218 contacts →
	Indirect evidence “Since 1977, Critchfield Mechanical, Inc.(CMI) has been one of the finest mechanical contractors in California, specializing in the design, fabrication and installation of heating…” Source: RevenueBase Database · checked Sep 21, 2026
6	Icom Mechanical INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	70 contacts →
	Indirect evidence “Founded in 1981 in San Jose, California, ICOM has provided The Silicon Valley and other important technology communities with the highest level of products and services for nearly…” Source: RevenueBase Database · checked Sep 21, 2026
7	ALL Temperature Service AIR Conditioning, Inc. ATS	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	66 contacts →
	Indirect evidence “As a leading mechanical contracting company with over four decades of experience, All Temperature Service (ATS) Air Conditioning, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
8	J&j AIR Conditioning, INC	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	32 contacts →
	Strong evidence “J&J Air Conditioning began in 1978 with only two service technicians offering basic HVAC maintenance and repair.” Source: RevenueBase Database · checked Sep 21, 2026
9	Aquinas Hvac	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	20 contacts →
	Strong evidence “About Aquinas HVAC is a family owned full-service Heating, Ventilation and Air Conditioning contractor.” Source: RevenueBase Database · checked Sep 21, 2026
10	O.C. Mcdonald CO	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	18 contacts →
	Indirect evidence “Over A Century of Quality Service, Repair & Innovative Installation In 1906, Oren Charles McDonald founded O.C.” Source: RevenueBase Database · checked Sep 21, 2026
11	A-1 Heating And Cooling, INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “Our Mission Provide clients with the highest quality service at fair and competitive prices.” Source: RevenueBase Database · checked Sep 21, 2026
12	Irbis AIR Plumbing Electrical	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	12 contacts →
	Strong evidence “About IRBIS HVAC: Redefining Comfort Through Innovation IRBIS HVAC goes beyond conventional HVAC services.” Source: RevenueBase Database · checked Sep 21, 2026
13	AIR Sharks	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “Residential Heating, Ventilation & Air Conditioning” Source: RevenueBase Database · checked Sep 21, 2026
14	West Coast Mechanical	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	1-10	10 contacts →
	Strong evidence “Full-Service Comercial HVAC Contractor” Source: RevenueBase Database · checked Sep 21, 2026
15	Indaspec Smart Roofing & Energy Services	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Strong evidence “Indaspec-the company industry professionals trusted for 10 years to complete their energy, roofing and HVAC projects-is evolving.” Source: RevenueBase Database · checked Sep 21, 2026
16	R&r Refrigeration And AIR Conditioning, INC	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Strong evidence “R&R Refrigeration is a mechanical contractor that provides complete environmental technology solutions for the full spectrum of HVAC & Refrigeration service and construction needs.” Source: RevenueBase Database · checked Sep 21, 2026
17	West BAY Mechanical INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Indirect evidence “West Bay Mechanical provides heating, air conditioning and sheet metal.” Source: RevenueBase Database · checked Sep 21, 2026
18	AIR Care Heating & Cooling	Indirect evidence	San Jose, United StatesHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect evidence “We are a local, family owned and operated company providing professional Heating, Ventilation and Air Conditioning services to the Santa Clara county.” Source: RevenueBase Database · checked Sep 21, 2026
19	Acosta Sheet Metal MFG	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	8 contacts →
	Strong evidence “Welcome to Acosta Sheet Metal Manufacturing – the San Francisco and Greater Bay Area's leading manufacturer of HVAC products, architectural products, and sheet metal building…” Source: RevenueBase Database · checked Sep 21, 2026
20	Trio Heating & AIR	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	6 contacts →
	Strong evidence “TRIO Heating and Air is a local industry leader for all of your residential HVAC needs.” Source: RevenueBase Database · checked Sep 21, 2026
21	Young's AIR Conditioning	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	51-200	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
22	AAA Furnace	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Since 1957 Furnace & Air Conditioning Co.” Source: RevenueBase Database · checked Sep 21, 2026
23	CPI Service, Plumbing, Heating & Cooling	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Indirect evidence “CPI Service is a licensed and insured plumbing company in the San Francisco Bay Area, providing trusted plumbing, heating, and cooling services since 1986.” Source: RevenueBase Database · checked Sep 21, 2026
24	BAY Area Mechanical Service	Strong evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Strong evidence “Bay Area Mechanical provides commercial HVAC mechanical services specializing in systems, service, and maintenance for your Bay Area business.” Source: RevenueBase Database · checked Sep 21, 2026
25	Hvac Sales INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	11-50	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 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: hvac businesses. 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 businesses.
Partial evidence: Its own public description names part of hvac businesses, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac businesses. 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 57 hvac businesses based in San Jose, United States

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Hvac businesses based in San Jose, United States at a glance

As of Sep 21, 2026

44.9%Verified-email coverage

37.7Average contacts per company

11-50Median size (employees)

456.1%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for San Jose, so it is reported there. Company counts and contact totals on this page are exact for San Jose, over 57 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 businesses, 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 San Jose, United States whose own description of what they do matches “hvac businesses”. 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 businesses), 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 businesses, and records with no verified work email. Companies headquartered outside San Jose 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, 964 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 21, 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 businesses by metro in the United States

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 businesses, 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 businesses are there based in San Jose, United States?

RevenueBase identified 57 hvac businesses headquartered in San Jose, 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?

Therma, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most hvac businesses?

Houston leads with 260 headquartered companies, followed by New York (196) and Phoenix (134).

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 964 verified decision-maker contacts tracked across these 57 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 21, 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.