| Business | Phone |
| Buckeye-Pacific Testing 9666 Indian Creek Way, Escondido 92026 | (760) 751-0863 |
| California Skin Research Inst 205 W Mission Ave, Escondido 92025 | (760) 839-1321 |
| Construction Testing & Engrng 1441 Montiel Rd # 115, Escondido 92026 | (760) 746-4955 |
| Mobile One Laboratories 148 S Vinewood St, Escondido 92029 | (760) 735-3208 |