Click on the expertise for further information
| Expertise | Company | County | Country |
| Computer Forensics | The Digital Detective Ltd | Cambridgeshire | England |
| Computer Forensics | J A C Crawford | Moray | Scotland |
| Computer Forensics | G J Waller | Kent | England |
| Corporate Risk Management | Security Risk Management Ltd | Tyne & Wear | England |
| Eastern European Specialists | Blueline Solutions Europe Ltd | Ceredigion | Wales |
| ECMS/bug sweeping | Beta 3 Solutions Ltd. | Cheshire | England |
| Identification Verification | Renaissance Investigation Ltd | Devon | England |
| IT Security | DeChêne International Ltd | Worcestershire | England |
| pharmaceutical industry | MedicoLegal Investigations Ltd | Cambridgeshire | England |
| Railway Investigator | J S Beckwith | Berkshire | England |
| Railway Investigator | S D Lewington | Berkshire | England |
| Railway Investigator | D R Gee | Berkshire | England |
| Railway Investigator | Bunting & Baker | Lincolnshire | England |
| Taxation investigations | Tax Management Group | Peterborough | England |