| Business | Phone |
| A-1 Transmission Svc 2504 Devpar Ct # A, Antioch 94509 | (925) 754-9967 |
| Antioch Transmissions 1113 W 10th St, Antioch 94509 | (925) 757-5240 |
| Cottman Transmission Center 2201 W 10th St, Antioch 94509 | (925) 978-0659 |
| Delta Transmission 1105 Sunset Dr, Antioch 94509 | (925) 754-1870 |