| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| APEX ENERGY LIMITED | 07679098 | 22/06/2011 | Dissolved |
| B.P.P. TECHNICAL SERVICES LIMITED | 02423416 | 29/03/1991 | Silver |
| BPP CABLES LIMITED | 07340211 | 09/08/2010 | Silver |
| HOMESTEAD ROAD RESIDENTS ASSOCIATION LTD | 10770662 | 15/05/2017 | Dissolved |
| SPECIALIST GAS SEPARATION LIMITED | 09421012 | 04/02/2015 | Dissolved |
| SPECIALIST PIGGING SERVICES LIMITED | 09420777 | 04/02/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| B P P Ocean Technology Ltd | 01587072 | 31/12/1991 | 31/05/2002 | Dissolved |
| BMT GROUP LIMITED | 01887373 | 01/10/2010 | 30/09/2019 | Silver |
| C-MAR GROUP HOLDINGS LTD | 02974834 | 01/01/1999 | 31/05/2002 | Dissolved |
| CRANFIELD AEROSPACE SOLUTIONS LIMITED | 02415720 | 02/09/2004 | 31/07/2012 | Amber |
| CRANFIELD DEFENCE & SECURITY SERVICES LIMITED | 05333696 | 01/09/2005 | 30/09/2011 | Silver |
| Ctoo Ltd | 06736559 | 28/08/2009 | 18/01/2010 | Dissolved |
| Pamec Technology Ltd | 01832153 | 04/06/1991 | 31/05/2002 | Dissolved |
| Subsea & Pipeline Engineering Ltd | 03250529 | 17/09/1996 | 31/05/2002 | Dissolved |
| UCL TRADING LIMITED | 02387544 | 22/05/1992 | 18/06/1997 | Amber |