| Business | Phone |
| Ace Enterprises Oakland 94611 | (510) 420-0355 |
| Air Masters Oakland 94602 | (510) 336-7072 |
| Air-Craft Mechanical 17 Embarcadero Cv, Oakland 94606 | (510) 436-5000 |
| Alaska Refrigeration Air Cond 1651 27th Ave, Oakland 94601 | (510) 261-9202 |
| American Distributors 7900 Edgewater Dr, Oakland 94621 | (510) 553-1900 |
| American Special Svc Oakland 94612 | (510) 895-5455 |
| Best Heating & Air Cond 4112 Lasalle Ave # 412, Oakland 94611 | (510) 530-2092 |
| R B Brown 200 Webster St, Oakland 94607 | (510) 839-4452 |
| Capital Heating & Air Cond 7660 Hawley St, Oakland 94621 | (510) 569-8752 |
| Kml Assoc 1207 Webster St # 200, Oakland 94612 | (510) 465-9940 |
| Lavine & Co 5933 Foothill Blvd, Oakland 94605 | (510) 632-4098 |
| Levine & Co 5933 Foothill Blvd, Oakland 94605 | (209) 575-2061 |
| N K Heating & Air Conditioning Oakland 94612 | (510) 251-2800 |
| Pyramids Heating & Air 3607 Brighton Ave, Oakland 94602 | (510) 531-6977 |
| Trane Co 420 3rd St # 103, Oakland 94607 | (510) 433-8940 |
| Yamas Controls Inc 384 Embarcadero W, Oakland 94607 | (510) 451-2280 |