| Business | Phone |
| Armor Clad Security 3432 Norton Pl, Modesto 95350 | (209) 609-1191 |
| Ati System 1200b F St, Modesto 95354 | (209) 569-0340 |
| California Industrial Svc 4218 Technology Dr # 1, Modesto 95356 | (209) 477-4848 |
| Guardco Security Svc 3124 Maplenut Ave, Modesto 95350 | (209) 527-0833 |
| Harris Private Security 3213 Bella Way, Modesto 95350 | (209) 523-6635 |
| M & M Private Security 401 H St, Modesto 95351 | (209) 579-2703 |
| Ontel Private Security 708 L St, Modesto 95354 | (209) 521-0200 |
| Rks Industries Div 903 Kansas Ave, Modesto 95351 | (209) 529-8866 |
| Roberts Security Agency 3112 Yosemite Blvd # B1, Modesto 95354 | (209) 549-8795 |
| Sas Security 1125 Lone Palm Ave # A, Modesto 95351 | (209) 524-2702 |
| Securipas Security Svc 1120 13th St # B, Modesto 95354 | (209) 549-8080 |
| Sintex Security Svc 641 Galaxy Way, Modesto 95356 | (209) 543-9044 |