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How many HVAC companies are in Washington, DC?
There are 775 HVAC companies in Washington, DC. 662 of them (85%) have a website.
775
HVAC companies listed
85%
have a website
11.5
per 10,000 residents
Selling to HVAC companies in Washington?
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 Washington compares
Washington ranks 2 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 Washington
- restaurants: 15,948
- real estate agents: 7,748
- law firms: 4,340
- dentists: 3,971
- hair salons: 3,405
- insurance agents: 3,025
- auto repair shops: 2,823
- accountants: 1,854
- gyms: 1,796
- nail salons: 1,385
- barbershops: 1,211
- coffee shops: 1,159
- physical therapists: 1,045
- landscapers: 982
- chiropractors: 977
- bakeries: 907
- house cleaning services: 737
- roofers: 675
- optometrists: 607
- plumbers: 553
- veterinarians: 524
- electricians: 506
- med spas: 478
- yoga studios: 362
- florists: 274
- pest control companies: 271
- painters: 232
- pet groomers: 188
- car dealers: 3
How we count
From the open Overture Maps business listings (release 2026-10-21.0), within Washington’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.