| Business | Phone |
| Appleton Electric Co 7700 Edgewater Dr # 549, Oakland 94621 | (925) 631-1611 |
| Ingall's Power Products 2525 Mandela Pkwy, Oakland 94607 | (510) 204-9000 |
| Mastervee Llc 8128 Capwell Dr, Oakland 94621 | (510) 568-1238 |
| Rjr Polymers Inc 7875 Edgewater Dr, Oakland 94621 | (510) 638-5901 |
| Smoocom Inc 1179 65th St, Oakland 94608 | (510) 653-9584 |
| W D Technologies Corp 3817 Everett Ave, Oakland 94602 | (510) 530-5233 |