| Company | Telephone | City | State | Zip |
| B&B Heating & Air | 209-474-8100 | Stockton | CA | 95219 |
| Beutler Corporation | 916-646-2222 | McClellan | CA | 95652 |
| Brower Mechanical | 916-630-8791 | Rocklin | CA | 95677 |
| Central Air Conditioning, Inc. | 559-688-6675 | Tulare | CA | 93274 |
| Commins Heating & Air | 916-965-7407 | Citrus Heights | CA | 95621 |
| Crystal Air | 530-623-1000 | Weaverville | CA | 96093 |
| David Zerbel | 530-362-2286 | Nevada City | CA | 95959 |
| Delta Tech | 559-275-7738 | Fresno | CA | 93650 |
| Huckabee's H&AC | 559-662-0336 | Madera | CA | 93639 |
| John Burger H&A | 530-673-3137 | Yuba City | CA | 95992 |
| Magic Mechanical | 408-978-0245 | San Jose | CA | 95124 |
| Modern Air Mechanical | 209-722-1815 | Merced | CA | 95348 |
| Mountain Aire, Inc. | 559-683-2040 | Coarsegold | CA | 93614 |
| O K Air Conditioning & Sheet Metal | 661-399-9996 | Bakersfield | CA | 93308 |
| Oasis Air Conditioning, Inc. | 661-323-2473 | Bakersfield | CA | 93305 |
| Queirolo's Heat & Air | 209-464-9658 | Stockton | CA | 95207 |
| RB Spencer | 530-674-8307 | Yuba City | CA | 95991 |
| Renaissance, Inc. | 559-444-0777 | Fresno | CA | 93728 |
| Sears | 559-871-7099 | Fresno | CA | 93722 |
| Sears | 916-501-7291 | Citrus Heights | CA | 95610 |
| Sears | 530-209-1352 | Redding | CA | 96002 |
| Sears | 707-704-5046 | Vallejo | CA | 94589 |
| Skelton Heating & Air Conditioning, Inc. | 209-832-7602 | Tracy | CA | 95304 |
| Spirit Heating & Air | 209-599-7901 | Ripon | CA | 95366 |
| Young's Air Conditioning | 209-826-4807 | Los Banos | CA | 93635 |
| Stockton Unified School District | n/a | Stockton | CA | 95205 |
| Vallejo USD Maintenance & Operations | n/a | Vallejo | CA | 94590 |
