| Business | Phone |
| Aaa Armed Security Co Po Box 891821, Oklahoma City 73189 | (405) 682-2960 |
| Action Investigations 2932 Sw 52nd Pl, Oklahoma City 73119 | (405) 691-9991 |
| Agency Investigations Inc Oklahoma City 73112 | (405) 949-4944 |
| Alan R Ball Investigations 2837 Sw 53rd St, Oklahoma City 73119 | (405) 681-9700 |
| Alpha Claims Svc 1312 N Classen Blvd, Oklahoma City 73106 | (405) 524-6612 |
| American Bureau-Investigation 10805 N Macarthur Blvd, Oklahoma City 73162 | (405) 721-8659 |
| Angel's Investigation 2239 W Eubanks St, Oklahoma City 73112 | (405) 528-0119 |
| Baer Facts Oklahoma City 73132 | (405) 720-6777 |
| Barrington Investigations Llc Po Box 721309, Oklahoma City 73172 | (405) 749-2101 |
| Bear Investigations 1810 Linwood Blvd, Oklahoma City 73106 | (405) 232-8844 |
| Black & Assoc Investigative 6900 Sw 95th St, Oklahoma City 73169 | (405) 745-4040 |
| Black Heart Investigation 6212 Nw 28th St, Oklahoma City 73127 | (405) 787-7868 |
| Bpi Investigation Oklahoma City 73102 | (405) 235-3232 |
| Brian E Dugan Investigations 6312 N Meridian Ave, Oklahoma City 73112 | (405) 947-7885 |
| Bricktown Investigation 217 N Harvey Ave, Oklahoma City 73102 | (405) 604-0719 |
| Bva Investigations 1 N Hudson Ave, Oklahoma City 73102 | (405) 232-2380 |
| Capitol Investigations 217 N Harvey Ave, Oklahoma City 73102 | (405) 232-1742 |
| Darin K Smith & Assoc Inc 7709 Nw 101st St, Oklahoma City 73162 | (405) 773-4499 |
| Daniel R Dick Oklahoma City 73118 | (405) 556-4895 |
| Fidelis Group Inc 100 Park Ave # 550, Oklahoma City 73102 | (405) 236-2300 |
| Fitzpatrick Investigations 5513 Nw 111th St, Oklahoma City 73162 | (405) 728-9388 |
| Franklyn Investigations Oklahoma City 73112 | (405) 414-5687 |
| Fraud Forensic Investigations 120 N Robinson Ave # 1920, Oklahoma City 73102 | (405) 230-1920 |
| Gary Eastridge Investigations Oklahoma City 73112 | (405) 740-7952 |
| Global Services Agency 217 N Harvey Ave # 101e, Oklahoma City 73102 | (405) 319-0001 |
| Gordon Bulla & Assoc 100 Park Ave # 616, Oklahoma City 73102 | (405) 232-2007 |
| Jerlow & Assoc 6957 Nw Expressway St # 184, Oklahoma City 73132 | (405) 721-0085 |
| Kent Fauss & Assoc 5809 Nw Grand Blvd, Oklahoma City 73118 | (405) 840-8404 |
| Lemon's Investigation Oklahoma City 73109 | (405) 924-1962 |
| Lewis Investigations Po Box 20326, Oklahoma City 73156 | (405) 206-7443 |
| Lovelace Investigations Oklahoma City 73159 | (405) 692-6327 |
| Metro Investigations Po Box 57262, Oklahoma City 73157 | (405) 350-7540 |
| Mid-America Investigation Agcy Oklahoma City 73111 | (405) 424-5153 |
| Mid-West Investigations 5716 S Western Ave, Oklahoma City 73109 | (405) 636-1976 |
| Oklahoma Man Trackers Agency Oklahoma City 73114 | (405) 314-4445 |
| Oklahoma Private Investigators 325 Dean A Mcgee Ave, Oklahoma City 73102 | (405) 235-0214 |
| Oliver Investigations 7520 S Country Club Dr, Oklahoma City 73159 | (405) 370-1988 |
| Polygraph Services 5350 S Western Ave # 618, Oklahoma City 73109 | (405) 636-1522 |
| Private Investigations Po Box 57482, Oklahoma City 73157 | (405) 945-1956 |
| Ranger Investigators Oklahoma City 73132 | (405) 721-2273 |
| Warrant Wizards Inc 3907 Se 29th St, Oklahoma City 73115 | (405) 619-7060 |
| United Research Assoc Inc 12217 N Pennsylvania Ave, Oklahoma City 73120 | (405) 232-8009 |
| Summit Investigations Po Box 82476, Oklahoma City 73148 | (405) 229-9715 |
| Stone Investigative Agency Oklahoma City 73102 | (405) 232-2045 |
| Sooner Process & Investigation Oklahoma City 73109 | (405) 636-9899 |
| Sooner Resource Investigations 4313 Se 43rd St, Oklahoma City 73115 | (405) 619-3999 |
| Spy Gear Inc 2146 Sw 74th St, Oklahoma City 73159 | (405) 685-2555 |
| Smart Private Investigations Po Box 721079, Oklahoma City 73172 | (405) 722-4461 |
| Rus B Robinson & Assoc Po Box 560, Oklahoma City 73101 | (918) 488-8500 |
| Scott & Assoc Investigative 7200 S Pennsylvania Ave # E, Oklahoma City 73159 | (405) 681-4544 |
| Robert N Dani & Co 6303 N Portland Ave # 202, Oklahoma City 73112 | (405) 947-7900 |
| Robison Investigations Po Box 720560, Oklahoma City 73172 | (405) 721-2295 |
| Roger Burton & Assoc 770 Ne 63rd St, Oklahoma City 73105 | (405) 848-1294 |