| Business | Phone |
| Dermtech International 15222 Avenue Of Science, San Diego 92128 | (858) 618-1328 |
| Environmental Engineering Lab 3538 Hancock St, San Diego 92110 | (619) 298-6131 |
| Southern California Soil 6280 Riverdale St, San Diego 92120 | (619) 280-4321 |
| Preferred Construction Inspctn 4888 Ronson Ct # G, San Diego 92111 | (858) 576-9110 |
| D-Tek Laboratory 9020 Kenamar Dr # 205, San Diego 92121 | (858) 566-4540 |
| Decisive Testing Inc 4735 Myrtle Ave, San Diego 92105 | (619) 285-9006 |
| Neutron Therapies Inc 5340 Eastgate Mall, San Diego 92121 | (858) 550-9670 |
| G Force 8788 Balboa Ave, San Diego 92123 | (619) 583-6633 |
| Gamma Tech Industries Inc 3645 Dalbergia St, San Diego 92113 | (619) 231-3808 |
| Geoscience Ltd 6260 Marindustry Dr, San Diego 92121 | (858) 453-5483 |
| Tuv Product Svc 10040 Mesa Rim Rd, San Diego 92121 | (858) 546-1338 |