| Business | Phone |
| Aamco Transmissions 2728 Martin Way E, Olympia 98506 | (360) 754-7094 |
| Transmission Engineering Llc 505 Lilly Rd Se, Olympia 98501 | (360) 438-2772 |
| Transmission Exchange Svc 3422 S Bay Rd Ne, Olympia 98506 | (360) 491-7828 |
| Transmission Technical Svc 1706 36th Ave Ne, Olympia 98506 | (360) 709-0886 |