| Business | Phone |
| Aaron Fontana Rivera & Nguyen 95 S Market St, San Jose 95113 | (408) 244-4911 |
| Allied Detective Agency 630 N 1st St, San Jose 95112 | (408) 292-4020 |
| Anderson Detective Agency 5542 Monterey Hwy # 175, San Jose 95138 | (408) 365-7071 |
| Anne Fields & Assoc Po Box 18066, San Jose 95158 | (408) 247-6196 |
| Api Svc 1048 Lincoln Ave, San Jose 95125 | (408) 298-1937 |
| Barna Security 1175 Saratoga Ave, San Jose 95129 | (408) 446-9500 |
| Bauman & Rasor Group Po Box 41481, San Jose 95160 | (408) 266-7991 |
| C C & Assoc 595 Park Ave # 305, San Jose 95110 | (408) 578-0300 |
| D-Tech Investigations San Jose 95127 | (408) 729-5919 |
| Daniel De Santis & Assoc 132 Race St, San Jose 95126 | (408) 295-4442 |
| Data Probe Analysis 152 N 3rd St # D, San Jose 95112 | (408) 287-9500 |
| Dennis Bender Investigation San Jose 95123 | (408) 363-9018 |
| Dietz Associates 1155 N 1st St # 111, San Jose 95112 | (408) 293-9002 |
| Discreet Investigative Group 1625 Alum Rock Ave, San Jose 95116 | (408) 254-4988 |
| Dominic Brocato Investigations Po Box 23636, San Jose 95153 | (408) 629-4366 |
| Estes-Zako & Assoc 320 S 3rd St # 203, San Jose 95112 | (408) 298-5600 |
| Haber Investigations 1702h Meridian Ave # 333, San Jose 95125 | (408) 978-2325 |
| Haole & Kanaka Assoc San Jose 95134 | (408) 933-4800 |
| Hill Investigators San Jose 95148 | (408) 238-2032 |
| Hunt Investigative Assoc San Jose 95113 | (408) 535-8843 |
| Insight Group Inc 929 Berryessa Rd, San Jose 95133 | (408) 248-8060 |
| Klopper Investigations 930 S Monroe St, San Jose 95128 | (408) 246-8982 |
| Interstate Intelligence Agency 45 N 1st St # 200, San Jose 95113 | (408) 971-3757 |
| Klug Private Investigations 99 N 1st St, San Jose 95113 | (510) 537-1315 |
| Lrs Investigations 1625 The Alameda # 511, San Jose 95126 | (408) 275-6078 |
| Management Information Svc 1794 The Alameda, San Jose 95126 | (408) 280-0115 |
| Perez Investigations San Jose 95112 | (408) 288-6555 |
| Northpointe Investigative Assc 1346 The Alameda, San Jose 95126 | (408) 225-8500 |
| Paragon Investigations 770 Lincoln Ave, San Jose 95126 | (408) 280-7682 |
| Sly Dog Investigations San Jose 95112 | (408) 292-0786 |
| Vierra Investigations Inc 1144 Park Ave, San Jose 95126 | (408) 295-1107 |
| Wilson & Associates 1015 W Hedding St, San Jose 95126 | (408) 243-6066 |
| Mc Grew & Associates Inc 826 N Winchester Blvd # 2h, San Jose 95128 | (408) 246-8585 |
| San Jose Detective Agency 4960 Almaden Expy # 229, San Jose 95118 | (408) 268-5900 |
| Sidwell & Singleton Invstgtns 4960 Almaden Expy # 110, San Jose 95118 | (408) 264-9100 |
| Link Information Svc Po Box 24252, San Jose 95154 | (408) 559-4080 |
| Shands Investigative Svc 4934 Morden Dr, San Jose 95130 | (408) 370-2036 |
| Wright Investigations Po Box 5491, San Jose 95150 | (408) 287-6800 |
| Paragon Investigations Inc 1691 Bagpipe Way, San Jose 95121 | (408) 223-7682 |
| Protective Solutions San Jose 95117 | (408) 243-7838 |