| Business | Phone |
| Toni Sirles 15705 Honolulu St, Houston 77040 | (713) 466-3322 |
| Central Texas Investigative Po Box 1047, Houston 77251 | (281) 639-0026 |
| Eakins & Associates 9100 Southwest Fwy, Houston 77074 | (281) 879-5855 |
| Charles Ford Investigations 9301 Southwest Fwy 250, Houston 77074 | (713) 774-1575 |
| Countertech 9301 Southwest Fwy, Houston 77074 | (713) 933-0595 |
| Swailes & Co 10333 Richmond Ave, Houston 77042 | (713) 977-7600 |
| Abs Research Inc 2916 W T C Jester Blvd 102, Houston 77018 | (713) 957-0993 |
| Accident Reviews 13111 Vista Brook Dr, Houston 77041 | (281) 531-5767 |
| Acta Investigations Inc 5906 Dolores St 225, Houston 77057 | (713) 680-8585 |
| Airborne Civil Process Po Box 131381, Houston 77219 | (713) 523-0471 |
| All City Investigations 6250 Westpark Dr, Houston 77057 | (713) 974-3020 |
| Allen Srvllnc Spclst & Invstgt 1813 Bingle Rd 259, Houston 77055 | (281) 531-1774 |
| Api Training Institute 2330 N Main St, Houston 77009 | (713) 225-1454 |
| Commercial Asset Investigation 6223 Richmond Ave, Houston 77057 | (713) 266-3216 |
| Asset Investigation & Recovery 1919 Blalock Rd, Houston 77080 | (832) 358-9630 |
| Baker Street Intl 13405 Granada St, Houston 77015 | (713) 453-2525 |
| Robert Bartlett 13907 Jupiter Hills Dr, Houston 77069 | (281) 440-3321 |
| Beerman & Assoc 10222 Hammerly Blvd, Houston 77043 | (713) 461-1796 |
| Benken & Assoc Professional 2120 Welch St, Houston 77019 | (713) 223-4051 |
| Bill O'Neill & Assoc 8447 Hunters Creek Dr, Houston 77024 | (713) 464-4513 |
| Bottom Line Investigations Po Box 24265, Houston 77229 | (713) 607-8706 |
| Burns Group Houston 77084 | (281) 861-8587 |
| C R Markham & Assoc 1807 W 34th St, Houston 77018 | (713) 683-0288 |
| C-Mack Services Inc 2150 Ojeman Rd, Houston 77080 | (713) 956-6622 |
| Carco Group Inc 7211 Regency Square Blvd 225, Houston 77036 | (713) 789-4450 |
| Carrizal & Assoc Inc 11821 East Fwy, Houston 77029 | (713) 451-2050 |
| Castillo Investigation 1305 Prairie St, Houston 77002 | (713) 222-1264 |
| Castorani & Crowley Inc Houston 77090 | (281) 440-5097 |
| Charles Clack 12039 Flaxen Dr, Houston 77065 | (281) 970-0552 |
| Comprehensive Investigations 821 E Tidwell Rd, Houston 77022 | (713) 691-0012 |
| Cornerstone Documents 808 Travis St 440, Houston 77002 | (713) 225-5800 |
| Countertech Investigations 1314 Texas St, Houston 77002 | (713) 225-5518 |
| Court Record Research Inc 1001 Preston St, Houston 77002 | (713) 227-3226 |
| Court Record Research Inc 405 Main St 550, Houston 77002 | (713) 227-3353 |
| Dan H North & Assoc 11634 Taos Ln, Houston 77070 | (281) 370-5882 |
| David G Raney Lic Polygraph 11250 West Rd K, Houston 77065 | (281) 469-8881 |
| Dba Investigations Houston 77036 | (281) 861-6800 |
| Dbu Investigations 7814 Soledad Dr # 120, Houston 77083 | (281) 564-9043 |
| Desirick L Duncan & Assoc 1001 Mckinney St 520, Houston 77002 | (713) 655-8007 |
| Diversified Investigation Agcy Houston 77057 | (713) 975-1419 |
| Don Malone & Assoc 1219 Durham Dr, Houston 77007 | (713) 914-9299 |
| Douglas Auto Mechanic 11450 Bissonnet St, Houston 77099 | (281) 564-4800 |
| E M Investigation 7015 Gulf Fwy 225, Houston 77087 | (713) 643-5722 |
| Eagle Eye Research 10810 Allens Landing Dr, Houston 77065 | (281) 894-8108 |
| Edward Michael Investigations 8989 Westheimer Rd 113, Houston 77063 | (713) 975-1505 |
| Ferguson Investigations Inc 350 N Sam Houston Pkwy E, Houston 77060 | (281) 847-9880 |
| Financial Investigations Inc 1458 Campbell Rd 200, Houston 77055 | (713) 464-1120 |
| Finley Enterprises 3438 Rosedale St 1, Houston 77004 | (713) 524-1151 |
| First Source Investigations 412 Main St # 340, Houston 77002 | (713) 226-8484 |
| James R Moore & Assoc 16350 Park Ten Pl, Houston 77084 | (281) 579-9617 |
| Frizell Group Intl Inc 723 Main St 902, Houston 77002 | (713) 532-2788 |
| Gene Boyd Investigations 770 S Post Oak Ln 620, Houston 77056 | (713) 622-6744 |
| Scottish Clan Council-Houston Po Box 27268, Houston 77227 | (713) 871-0061 |
| Global Compliance Svc 5600 Nw Central Dr, Houston 77092 | (713) 460-5507 |
| Global Investigations 1700 Fm 1960 Rd W, Houston 77090 | (281) 440-5723 |
| Mc Collom & Assoc 1404 Congress St, Houston 77002 | (713) 227-4403 |
| Mc Mahon & Assoc Llc 3262 Westheimer Rd 122, Houston 77098 | (281) 890-5855 |
| Gotcha Profiles Po Box 440579, Houston 77244 | (713) 468-2421 |
| Gradoni & Assoc 14520 Wunderlich Dr 120, Houston 77069 | (281) 440-0800 |
| Marc Investigation Co 16222 Bunker Ridge Rd, Houston 77053 | (281) 835-4182 |
| David M Grove 3601 Allen Pkwy, Houston 77019 | (713) 942-7845 |
| Magnifacts Inc 5511 Pinemont Dr, Houston 77092 | (713) 686-3228 |
| Lynn W Wilburn Investigations 1980 Post Oak Blvd 1130, Houston 77056 | (713) 629-2222 |
| Lonestar Investigations 2626 South Loop W, Houston 77054 | (713) 227-4616 |
| Harris Co Investigations 9990 W Montgomery Rd, Houston 77088 | (281) 272-8199 |
| Harrisearch Investigations 2509 15th St, Houston 77032 | (281) 670-7575 |
| Lloyd M Barber & Assoc Po Box 79234, Houston 77279 | (281) 679-8883 |
| Healthcare Recovery Invstgtns 5603 S Acres Dr, Houston 77048 | (281) 489-1380 |
| Heroes Of The Flame 2150 Ojeman Rd, Houston 77080 | (713) 956-2744 |
| Hhcec 14743 Perthshire Rd, Houston 77079 | (281) 493-6181 |
| Holl Investigations & Security 1330 Post Oak Blvd # 1600, Houston 77056 | (713) 963-4643 |
| Ramirez Investigations Houston 77098 | (713) 807-7070 |
| Houston Private Investigators 11811 East Fwy 375, Houston 77029 | (713) 451-1000 |
| Huggins Investigative Svc 4001 N Shepherd Dr, Houston 77018 | (713) 694-4430 |
| Kay Tinker & Co 1314 Texas St, Houston 77002 | (713) 228-1818 |
| Keith Lyons & Assoc Inc 12841 Jones Rd 113, Houston 77070 | (281) 655-5700 |
| K Griff Investigations & Civil 1925 Lexington St, Houston 77098 | (713) 526-7711 |
| Info Fax Investigative & Info 3555 Timmons Ln, Houston 77027 | (713) 432-0343 |
| Iron Shield Security 1001 S Dairy Ashford St, Houston 77077 | (713) 595-6643 |
| Intelnet Inc 320 Westcott St 108, Houston 77007 | (713) 880-3693 |
| Interstar System Inc 3741 Mangum Rd # 101, Houston 77092 | (713) 957-0411 |
| Investigation Center Houston 77081 | (713) 666-8000 |
| Investigations 9112 N Broadway St, Houston 77034 | (713) 947-6331 |
| Investigative Firm 5644 Westheimer Rd 302, Houston 77056 | (713) 353-0219 |
| Investigative Firm 9955 S Post Oak Rd 266, Houston 77096 | (713) 895-5101 |
| Investogation Service Ltd Houston 77008 | (713) 861-1415 |
| John F Thorne & Assoc 811 Rusk St, Houston 77002 | (713) 236-0358 |
| John V Eriksson & Assoc 1203 El Dorado Blvd, Houston 77062 | (281) 488-6021 |
| Jac Investigations Po Box 7563, Houston 77270 | (713) 392-4019 |
| Jamak Investigation 808 Travis St, Houston 77002 | (713) 237-0058 |
| James Patti Investigations Po Box 801871, Houston 77280 | (713) 827-8542 |
| Lang Investigations Inc 8955 Katy Fwy 100, Houston 77024 | (713) 789-1449 |
| Moritz & Assoc 7026 Old Katy Rd 103, Houston 77024 | (713) 263-1110 |
| National Investigation Agency 1111 North Loop, Houston 77022 | (713) 869-2418 |
| National Pi & Civil Processing 412 Main St 340, Houston 77002 | (713) 226-7867 |
| Fore-Front Investigations Inc 201 Travis St #212, Houston 77243 | (800) 658-7986 |
| Kimmons Investigative Services, Inc. 5906 Dolores, Suite 225, Houston 77057 | (713) 532-5881 |