| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| D N V Technica Indecon Ltd | 01810504 | 10/03/1994 | Dissolved |
| Smedvig Technologies (1998) Ltd | SC135897 | 17/11/1998 | Dissolved |
| Total Quality Management Systems Limited | SC138817 | 17/11/1998 | Dissolved |
| Veritas Petroleum Services Ltd | 01667392 | 18/06/1993 | Dissolved |
| Veritas Sesam Systems Ltd | 02270108 | 29/07/1994 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CARNSTONE LIMITED | SC216087 | 09/12/2002 | 18/09/2008 | Dissolved |
| DET NORSKE VERITAS UK HOLDING LIMITED | 02644671 | 13/12/1993 | 20/12/1994 | Dissolved |
| DNV SERVICES UK LIMITED | 01503799 | 11/03/1994 | 21/12/1994 | Silver |
| Det Norske Veritas Industry (1993) Ltd | 01630386 | 18/06/1993 | 21/12/1994 | Dissolved |
| Geomatic Ltd | 02382447 | 30/12/1994 | 20/10/1995 | Dissolved |
| Geomatic Ltd | 02382447 | 28/02/1995 | 11/09/2001 | Dissolved |
| ROXAR LIMITED | SC088938 | 17/07/1995 | 11/09/2001 | Silver |
| Roxar (1999) Ltd | 03796113 | 22/06/1999 | 11/09/2001 | Dissolved |
| Technica International Ltd | 01911970 | 03/03/1994 | 21/12/1994 | Dissolved |