| Business | Phone |
| Airtight Security 46 N Central Ave, Upland 91786 | (909) 946-4747 |
| K-9 Security 324 N Mountain Ave, Upland 91786 | (909) 931-1077 |
| Martin Private Patrol 167 N 3rd Ave # D, Upland 91786 | (909) 931-5770 |
| Russell Security & Staffing 324 N Mountain Ave, Upland 91786 | (909) 931-1030 |
| Safety Management Security Inc 818 N Mountain Ave, Upland 91786 | (909) 982-5786 |
| Shield Security Inc 285 N Euclid Ave, Upland 91786 | (909) 920-1173 |
| Us Security Assoc Inc 222 N Mountain Ave, Upland 91786 | (909) 920-9351 |