Data
Heating and air conditioning companies in Wisconsin
There are 2,805 heating and air conditioning companies in Wisconsin (CityPreferred count, October 2026). Milwaukee has the most (215), then Madison (87).
Reviewed October 1, 2026
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Wisconsin cities
| City | Companies |
|---|---|
| Milwaukee | 215 |
| Madison | 87 |
| Waukesha | 63 |
| Appleton | 47 |
| Kenosha | 46 |
| Green Bay | 44 |
| Brookfield | 40 |
| Oconomowoc | 32 |
| Oshkosh | 32 |
| Janesville | 31 |
| Wausau | 30 |
| Menomonee Falls | 30 |
| Racine | 29 |
| Wisconsin Rapids | 28 |
| New Berlin | 26 |
| Watertown | 25 |
| La Crosse | 24 |
| Hudson | 23 |
| Hartland | 21 |
| Burlington | 21 |
| Sun Prairie | 21 |
| Eau Claire | 21 |
| De Pere | 20 |
Wisconsin and the rest of the country
Wisconsin has 2,805 of the 169,801 heating and air conditioning companies in the country (2%). All states.
What is counted
Independent businesses that do this work, for homes or for businesses. Suppliers, stores and national chains are left out. Being counted does not mean a company is licensed, insured or recommended. A city is listed when it has 20 or more. How we count.
Questions and answers
- How many heating and air conditioning companies are there in Wisconsin?
- 2,805, by CityPreferred's count as of October 2026.
- Which Wisconsin city has the most?
- Milwaukee, with 215, followed by Madison with 87.