| Business | Phone |
| Credit Smog Svc 8738 1/2 Long Beach Blvd, South Gate 90280 | (323) 567-2376 |
| Fast Smog & Repair 2945 Century Blvd, South Gate 90280 | (323) 357-9430 |
| G & J Smog Check 9609 Atlantic Ave, South Gate 90280 | (323) 249-5025 |
| Jim Smog & Auto Care Svc 5825 Imperial Hwy, South Gate 90280 | (562) 861-1425 |
| M & M Auto Technician 9501 Atlantic Ave, South Gate 90280 | (323) 567-4966 |
| Smog Solution 4936 Firestone Blvd, South Gate 90280 | (323) 249-5179 |
| Smog Usa & Auto Svc 3003 Firestone Blvd, South Gate 90280 | (323) 569-8013 |
| South Gate Smog & Auto Svc 4200 Firestone Blvd, South Gate 90280 | (323) 564-3090 |
| South Gate Smog Test Only Center 8400 California Ave, South Gate 90280 | (323) 564-2388 |
| Southgate Smog Test Only Center 3451 Firestone Blvd, South Gate 90280 | (323) 566-0300 |
| Walter's Smog 9201 California Ave, South Gate 90280 | (323) 567-0075 |