| Business | Phone |
| Beverly Investigations Livermore 94550 | (925) 846-7717 |
| G R Nelson Investigations Livermore 94550 | (925) 606-5336 |
| Smith & Assoc 1141 Catalina Dr # 130, Livermore 94550 | (925) 449-0771 |
| Tyson Fire Investigations 3182 East Ave, Livermore 94550 | (925) 243-1515 |