Company lists · Data refreshed September 2026
Top 25 Hvac systems based in San Jose, United States
RevenueBase identified 51 hvac systems headquartered in San Jose, United States as of September 2026 and tracks 2,314 professional contacts across them, including 1,090 with verified work emails. Houston is the largest hub.
This list covers hvac systems 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.
The 25 largest hvac systems based in San Jose, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 348 contacts → | ||||
Partial evidence “Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 293 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 133 contacts → | ||||
Partial evidence “We are a leading provider of engineering, consulting, installation and maintenance services for mission-critical systems in buildings.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 47 contacts → | ||||
Indirect evidence “ASG strives to be the trusted partner to our customers, to adopt proven technologies and to enhance the lives of our team members.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 20 contacts → | ||||
Partial evidence “About Aquinas HVAC is a family owned full-service Heating, Ventilation and Air Conditioning contractor.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 17 contacts → | ||||
Indirect evidence “Our Mission Provide clients with the highest quality service at fair and competitive prices.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 contacts → | ||||
Indirect evidence “Comfort International “CI”, is exclusively focused on achieving peak efficiencies with existing commercial buildings.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Partial evidence “About IRBIS HVAC: Redefining Comfort Through Innovation IRBIS HVAC goes beyond conventional HVAC services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Indirect evidence “Residential Heating, Ventilation & Air Conditioning” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Partial evidence “Full-Service Comercial HVAC Contractor” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “West Bay Mechanical provides heating, air conditioning and sheet metal.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “TRIO Heating and Air is a local industry leader for all of your residential HVAC needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Heating and Air Conditioning has been the foundation of our business for over 60 years.” Source: RevenueBase Database · checked Sep 21, 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 systems. 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 systems.
- Partial evidence
- Its own public description names part of hvac systems, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hvac systems. 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 51 hvac systems based in San Jose, United States
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Hvac systems based in San Jose, United States at a glance
As of Sep 21, 2026Companies by employee count
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 51 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 systems, 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 systems”. 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 systems), 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 systems, 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, 1,090 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 systems by metro in the United States
- Hvac systems in Houston214
- Hvac systems in New York155
- Hvac systems in San Antonio100
- Hvac systems in Dallas99
- Hvac systems in Phoenix97
- Hvac systems in Miami85
- Hvac systems in Tampa84
- Hvac systems in Indianapolis83
- Hvac systems in Austin77
- Hvac systems in Jacksonville75
- Hvac systems in Charlotte74
- Hvac systems in Denver69
- Hvac systems in Orlando67
- Hvac systems in Las Vegas65
- Hvac systems in Louisville65
- Hvac systems in San Diego57
- Hvac systems in Chicago56
- Hvac systems in Raleigh55
- Hvac systems in Mesa53
- Hvac systems in Cincinnati52
- Hvac systems in San Jose51
- Hvac systems in Columbus49
- Hvac systems in Fort Worth49
- Hvac systems in Portland48
- Hvac systems in Nashville47
- Hvac systems in Richmond47
- Hvac systems in Springfield47
- Hvac systems in Atlanta46
- Hvac systems in Salt Lake City46
- Hvac systems in Tucson46
- Hvac systems in Greenville43
- Hvac systems in Los Angeles43
- Hvac systems in Sacramento42
- Hvac systems in Rochester41
- Hvac systems in Wilmington41
- Hvac systems in Columbia40
- Hvac systems in Omaha40
- Hvac systems in Oklahoma City38
- Hvac systems in Tulsa38
- Hvac systems in Lexington37
- Hvac systems in Pittsburgh37
- Hvac systems in Anaheim36
- Hvac systems in Colorado Springs36
- Hvac systems in Fort Myers36
- Hvac systems in Knoxville36
- Hvac systems in Memphis36
- Hvac systems in Philadelphia36
- Hvac systems in Cleveland35
- Hvac systems in Albuquerque34
- Hvac systems in Arlington33
- Hvac systems in Canton33
- Hvac systems in Tempe33
- Hvac systems in Baltimore32
- Hvac systems in Dayton32
- Hvac systems in Fort Lauderdale32
- Hvac systems in Sarasota32
- Hvac systems in Pompano Beach31
- Hvac systems in West Palm Beach31
- Hvac systems in Kansas City30
- Hvac systems in Lancaster30
- Hvac systems in Marietta30
- Hvac systems in Greensboro29
- Hvac systems in Spring29
- Hvac systems in Gainesville28
- Hvac systems in Glendale27
- Hvac systems in Grand Rapids27
- Hvac systems in Vancouver27
- Hvac systems in Auburn26
- Hvac systems in Birmingham26
- Hvac systems in Burlington26
- Hvac systems in Carrollton26
- Hvac systems in Clearwater26
- Hvac systems in Harrisburg25
- Hvac systems in West Chester25
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 systems, 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 systems are there based in San Jose, United States?
RevenueBase identified 51 hvac systems 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 systems?
Houston leads with 214 headquartered companies, followed by New York (155) and San Antonio (100).
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 1,090 verified decision-maker contacts tracked across these 51 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.
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