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How many HVAC companies are in Milwaukee, WI?
There are 242 HVAC companies in Milwaukee, WI. 194 of them (80%) have a website.
242
HVAC companies listed
80%
have a website
4
per 10,000 residents
Selling to HVAC companies in Milwaukee?
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 Milwaukee compares
Milwaukee ranks 32 of 47 cities we counted for HVAC companies per resident.
| City | HVAC companies | per 10,000 |
|---|---|---|
| Staten Island, NY | 1,463 | 29.5 |
| Long Beach, CA | 888 | 18.9 |
| Mesa, AZ | 900 | 17.8 |
| Hempstead, NY | 1,282 | 16.2 |
| Atlanta, GA | 586 | 11.6 |
| 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 |
| Detroit, MI | 500 | 7.9 |
| Baltimore, MD | 461 | 7.9 |
Other businesses in Milwaukee
- restaurants: 4,143
- real estate agents: 1,459
- insurance agents: 1,194
- auto repair shops: 1,100
- hair salons: 1,039
- dentists: 952
- law firms: 905
- gyms: 599
- chiropractors: 469
- landscapers: 469
- nail salons: 460
- barbershops: 391
- accountants: 391
- physical therapists: 356
- coffee shops: 349
- bakeries: 273
- roofers: 265
- optometrists: 208
- veterinarians: 186
- plumbers: 179
- house cleaning services: 157
- electricians: 153
- med spas: 140
- pet groomers: 138
- painters: 126
- yoga studios: 108
- pest control companies: 81
- florists: 80
- car dealers: 7
How we count
From the open Overture Maps business listings (release 2026-10-21.0), within Milwaukee’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.