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How many HVAC companies are in Seattle, WA?
There are 359 HVAC companies in Seattle, WA. 314 of them (87%) have a website.
359
HVAC companies listed
87%
have a website
4.9
per 10,000 residents
Selling to HVAC companies in Seattle?
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 Seattle compares
Seattle ranks 14 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 Seattle
- restaurants: 10,159
- real estate agents: 5,271
- dentists: 2,672
- law firms: 2,485
- insurance agents: 2,377
- hair salons: 2,012
- coffee shops: 1,687
- auto repair shops: 1,649
- gyms: 1,229
- chiropractors: 1,093
- accountants: 1,070
- nail salons: 811
- landscapers: 802
- physical therapists: 730
- bakeries: 614
- barbershops: 607
- roofers: 507
- veterinarians: 461
- plumbers: 460
- house cleaning services: 417
- optometrists: 412
- electricians: 384
- yoga studios: 331
- med spas: 316
- painters: 316
- pet groomers: 222
- florists: 140
- pest control companies: 131
- car dealers: 2
How we count
From the open Overture Maps business listings (release 2026-10-21.0), within Seattle’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.