| 1 | | 340 E D Ave | Kingman |  US | | Interlock Systems | (316) 252-8422 | N/A | N/A |
| 2 | | 15929 Clark Ave | Bellflower | US | | Interlock Systems | (888) 336-5603 | darrell peterson | president and chief financial officer |
| 3 | | 4070 Tweedy Blvd #H | South Gate | US | | Interlock Systems | (866) 441-4078 | N/A | N/A |
| 4 | | 590 E Western Reserve Rd Bldg 10 Ste J | Poland | US | | Interlock Systems | (330) 726-4774 | N/A | N/A |
| 5 | | 12755 Brookhurst St Ste 202 | Garden Grove | US | | Registration Services, Interlock Systems | (714) 804-0400 | N/A | N/A |
| 6 | | 4701 Lankershim Blvd | North Hollywood | US | | Interlock Systems | (818) 824-8445 | darrell peterson | president and chief financial officer |
| 7 | | 1880 E Colorado Blvd | Pasadena | US | | Interlock Systems | (626) 317-8195 | darrell peterson | president and chief financial officer |
| 8 | | 20265 Valley Blvd Ste K | Walnut | US | | Interlock Systems | (909) 315-4139 | darrell peterson | president and chief financial officer |
| 9 | | 9375 Feron Blvd Ste E | Rancho Cucamonga | US | | Interlock Systems | (909) 945-9777 | N/A | N/A |
| 10 | | 1122 W Washington Blvd Ste C-2 | Montebello | US | | Interlock Systems | (323) 825-6214 | darrell peterson | president and chief financial officer |
| 11 | | 9375 Feron Blvd Ste E | Rancho Cucamonga | US | | Interlock Systems | (909) 764-3421 | darrell peterson | president and chief financial officer |
| 12 | | 714 Frederick St | Cumberland | US | | Interlock Systems | (240) 578-0382 | N/A | N/A |
| 13 | | 600 S Market St | Waterloo | US | | Auto Repair, Tires, Interlock Systems | (618) 939-7316 | N/A | N/A |
| 14 | | 301 Henderson Ave | Cumberland | US | | Interlock Systems | (240) 362-7197 | N/A | N/A |
| 15 | | 4471 W Rosecrans Ave | Hawthorne | US | | Interlock Systems | (424) 233-0589 | darrell peterson | president and chief financial officer |
| 16 | | 6181 Memorial Dr | Stone Mountain | US | | Dui Schools, Interlock Systems | (770) 685-1381 | N/A | N/A |
| 17 | | 49 North Main St | Dry Ridge | US | | Car Stereo Installation, Interlock Systems, Auto Security | (859) 824-7609 | wanda saed | Owner |
| 18 | | 5918 S Broadway | Los Angeles | US | | Interlock Systems | (323) 310-1395 | darrell peterson | president and chief financial officer |
| 19 | | 7863 Garvey Ave | Rosemead | US | | Interlock Systems | (626) 427-6962 | darrell peterson | president and chief financial officer |
| 20 | | 1349 Truman St | San Fernando | US | | Interlock Systems | (818) 740-5766 | darrell peterson | president and chief financial officer |
