| Business | Phone |
| Acree Technologies Inc 308 Jackson St # 2, Oakland 94607 | (510) 923-0291 |
| Baywest Electric Inc 333 Hegenberger Rd # 303, Oakland 94621 | (510) 864-9344 |
| Electro Tech 333 Hegenberger Rd, Oakland 94621 | (510) 569-9708 |
| Lulabs 4101 Tompkins Ave, Oakland 94619 | (510) 530-7467 |
| Micro Propulsion Corp 486 Wesley Ave, Oakland 94606 | (510) 845-0112 |