| Business | Phone |
| Arnold Gerardo & Assoc 185 W F St # 100, San Diego 92101 | (619) 702-3134 |
| Baechler Investigative Svc 4910 70th St, San Diego 92115 | (619) 464-5600 |
| Baker Street Group Inc 16476 Bernardo Center Dr # 221, San Diego 92128 | (858) 673-5400 |
| Batza & Assoc San Diego 92115 | (619) 287-4800 |
| Becker Executive Search 3655 Nobel Dr # 550, San Diego 92122 | (858) 866-6500 |
| Belstar Systems Inc San Diego 92103 | (619) 295-7770 |
| Bill Eden Pi Po Box 504291, San Diego 92150 | (858) 672-8509 |
| Bolling & Assoc Consulting 432 F St, San Diego 92101 | (619) 338-0495 |
| Bowers & Assoc 3636 Nobel Dr # 240, San Diego 92122 | (858) 452-8505 |
| Busalacchi Investigative Agcy Po Box 152405, San Diego 92195 | (619) 433-4100 |
| C Gutierrez Investigation San Diego 92103 | (858) 493-8300 |
| Carol S Toone & Assoc 2924 Emerson St # 203, San Diego 92106 | (760) 450-9992 |
| Complete Investigating Svc San Diego 92111 | (858) 277-7800 |
| Denver B Moore & Assoc 501 W Broadway, San Diego 92101 | (619) 696-3217 |
| Denver Moore Investigations San Diego 92130 | (858) 792-0201 |
| Esi Intl Inc 11848 Bernardo Plaza Ct # 140b, San Diego 92128 | (858) 485-1711 |
| Esposito Dailey Investigative San Diego 92109 | (858) 539-0518 |
| Krikorian & Assoc 2801 Camino Del Rio S # 300, San Diego 92108 | (619) 294-4984 |
| Ostrowski Investigations Inc 1545 Hotel Cir S # 270, San Diego 92108 | (619) 298-8204 |
| Specialized Investigations 3435 Camino Del Rio S, San Diego 92108 | (619) 281-5831 |
| Western Investigations 5694 Mission Center Rd # 443, San Diego 92108 | (619) 470-9336 |
| Access Research 751 7th Ave # H, San Diego 92101 | (619) 231-8947 |
| Shannon Detective Svc San Diego 92126 | (858) 689-2177 |
| Seaboard Investigations Inc 5252 Balboa Ave # 301, San Diego 92117 | (858) 569-9388 |
| San Diego Investigation Svc Po Box 19367, San Diego 92159 | (619) 461-7450 |
| San Diego Private Invstgtns 3525 Del Mar Heights Rd # 297, San Diego 92130 | (760) 724-8070 |
| Rsi Svc 3900 5th Ave, San Diego 92103 | (619) 542-0117 |
| S D Mendenhall & Assoc 341 W Broadway # 154, San Diego 92101 | (619) 231-4443 |
| Sbr Investigations & Consultant 401 B St, San Diego 92101 | (619) 501-3784 |
| Richard Schlueter Investgtns San Diego 92115 | (619) 265-8770 |
| Rimco Realty 4452 Park Blvd, San Diego 92116 | (619) 296-8111 |
| R J Frasco Agency 5560 Ruffin Rd, San Diego 92123 | (858) 279-7461 |
| Private Inquiries 9368 Alta Laguna Way, San Diego 92126 | (858) 549-4193 |
| Process Plus Inc 1400 6th Ave, San Diego 92101 | (619) 325-1388 |
| Proficient Investigations 13230 Evening Creek Dr S, San Diego 92128 | (858) 668-3100 |
| Perrin Investigative Svc San Diego 92128 | (858) 451-7877 |
| Peter Griffin Pvt Investigator 2731 Shelter Island Dr, San Diego 92106 | (619) 225-8710 |
| Pexis Security & Investigation 3659 India St, San Diego 92103 | (619) 297-9959 |
| Pacific Southwest Investigatio 3536 Adams Ave, San Diego 92116 | (619) 280-7029 |
| D S Investigative Svc 121 Broadway # 206, San Diego 92101 | (619) 231-9838 |
| Owens & Assoc Investigations 2245 San Diego Ave # 225, San Diego 92110 | (619) 297-1343 |
| Nnl Investigations San Diego 92154 | (619) 423-0435 |
| Necessary Evil San Diego 92120 | (619) 501-3838 |
| Moore Denver Investigations San Diego 92126 | (858) 653-5277 |
| Gaslamp Quarter Investigations 923 Island Ave, San Diego 92101 | (619) 239-6991 |
| Martino & Assoc San Diego 92101 | (619) 231-6200 |
| Mango Pi Investigations 105 W F St, San Diego 92101 | (619) 232-2157 |
| Manny Lopez & Assoc 600 W Broadway # 1550, San Diego 92101 | (619) 233-5599 |
| Marion L Pasas Investigations 934 23rd St, San Diego 92102 | (619) 233-3099 |
| Manuel R Smith Po Box 40008, San Diego 92164 | (619) 671-0027 |
| Liuzzi Investigative Svc 437 J St # 200, San Diego 92101 | (619) 234-4262 |
| Interpoint Group 501 W Broadway # 114, San Diego 92101 | (619) 233-1954 |
| Island Group 5663 Balboa Ave # 373, San Diego 92111 | (858) 569-7568 |
| John Ballard Investigations 2414 Front St # 13, San Diego 92101 | (619) 234-7700 |
| Charles W Johnson San Diego 92111 | (858) 277-3251 |
| Langhammer & Assoc Inc 2870 4th Ave # 100, San Diego 92103 | (858) 488-0058 |
| Langhammer & Assoc Inc 3054 5th Ave, San Diego 92103 | (619) 544-0300 |
| Krout & Schneider Inc 4849 Ronson Ct # 107, San Diego 92111 | (858) 571-2710 |
| Kitchel Investigations San Diego 92101 | (619) 531-0556 |
| BEJAR'S INVESTIGATION SERVICES 3650 Clairemont Drive Suite 8 B, San Diego 92117 | (866) 338-0110 |