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How many HVAC companies are in San Francisco, CA?
There are 338 HVAC companies in San Francisco, CA. 286 of them (85%) have a website.
338
HVAC companies listed
85%
have a website
3.9
per 10,000 residents
Selling to HVAC companies in San Francisco?
Small Fish reads each one’s website and keeps the ones that fit what you sell, like “no online booking”, with a phone, an email and a one-line reason to reach out.
Find the ones worth contacting →How San Francisco compares
San Francisco ranks 22 of 31 cities we counted for HVAC companies per resident.
| City | HVAC companies | per 10,000 |
|---|---|---|
| Hempstead, NY | 1,282 | 16.2 |
| Washington, DC | 775 | 11.5 |
| The Bronx, NY | 1,367 | 9.3 |
| Boston, MA | 626 | 9.3 |
| Denver, CO | 627 | 8.8 |
| Manhattan, NY | 1,379 | 8.1 |
| Dallas, TX | 949 | 7.4 |
| Fort Worth, TX | 678 | 6.8 |
| Las Vegas, NV | 443 | 6.8 |
| Charlotte, NC | 459 | 6.1 |
| Portland, OR | 396 | 6.1 |
| Queens, NY | 1,297 | 5.4 |
Other businesses in San Francisco
- restaurants: 14,404
- real estate agents: 5,630
- law firms: 3,715
- dentists: 3,011
- insurance agents: 2,973
- hair salons: 2,551
- auto repair shops: 2,473
- gyms: 1,488
- accountants: 1,477
- coffee shops: 1,321
- chiropractors: 1,105
- nail salons: 1,081
- bakeries: 932
- barbershops: 751
- landscapers: 671
- plumbers: 643
- physical therapists: 491
- optometrists: 464
- veterinarians: 433
- yoga studios: 410
- electricians: 407
- house cleaning services: 407
- med spas: 311
- roofers: 300
- florists: 273
- painters: 270
- pet groomers: 190
- pest control companies: 157
- car dealers: 5
How we count
From the open Overture Maps business listings (release 2026-10-21.0), within San Francisco’s boundary, counted in October 2026. Listings data, not a census: a few may have closed or moved, and a business filed under another category is not included. Population is the city’s own figure from the same release’s boundaries.