| Business | Phone |
| Ky's Auto Repair 2633 El Camino Real, Redwood City 94061 | (650) 364-7766 |
| Redwood City Smog Test Only 323 Woodside Rd, Redwood City 94061 | (650) 365-7664 |
| Spring Street Auto 2658 Spring St, Redwood City 94063 | (650) 299-1522 |
| T & T Auto Repair 2627 Middlefield Rd, Redwood City 94063 | (650) 364-0528 |
| Union Smog Test Only 2850 Middlefield Rd, Redwood City 94063 | (650) 299-0100 |
| Bay Area Super Smog Check Test 2533 Middlefield Rd, Redwood City 94063 | (650) 368-0130 |