| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Eastfield No 2 Ltd | 01785239 | 15/10/1992 | Dissolved |
| Eastfield No 3 Ltd | 00619221 | 15/10/1991 | Dissolved |
| Perkins Group (International) Ltd | 02388888 | 15/10/1991 | Dissolved |
| THE CHESTNUTS RESIDENTS COMPANY LIMITED | 02827566 | 01/09/1994 | Silver |
| THE CHESTNUTS RESIDENTS COMPANY LIMITED | 02827566 | 01/09/1994 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Caribou Corporation Ltd | 03378746 | 09/03/1998 | 07/08/1998 | Dissolved |
| Dorman Diesels Ltd | 01253490 | 24/06/1994 | 11/03/1998 | Dissolved |
| EASTFIELD NO 11 LIMITED | 01757837 | 15/10/1991 | 09/12/1991 | Insolvent |
| EASTFIELD NO 5 LIMITED | 02010016 | 24/06/1994 | 11/03/1998 | Insolvent |
| ELSTAT LIMITED | 03106961 | 01/02/2008 | 31/12/2016 | Insolvent |
| ESPIAL GROUP LIMITED | 05372859 | 24/01/2008 | 21/05/2009 | Dissolved |
| ESPIAL LIMITED | 02822565 | 24/01/2008 | 21/05/2009 | Gold |
| F. PERKINS LIMITED | 00265987 | 09/05/1994 | 11/03/1998 | Gold |
| FG WILSON (ENGINEERING) LIMITED | 02388858 | 15/10/1991 | 11/03/1998 | Not Trading |
| GARDNER PARTS LIMITED | 01971135 | 15/10/1991 | 30/10/1993 | Insolvent |
| HYDRATIGHT LIMITED | 03069889 | 24/03/1997 | 18/02/1999 | Amber |
| LUCAS INVESTMENTS LIMITED | 02952484 | 02/03/1998 | 07/08/1998 | Dissolved |
| LUCAS SUPPORT SERVICES LIMITED | 00313111 | 02/03/1998 | 07/08/1998 | Dissolved |
| Lucas Investment Finance Ltd | 01183098 | 02/03/1998 | 07/08/1998 | Dissolved |
| Lucas Transit Products Ltd | 00116360 | 02/03/1998 | 07/08/1998 | Dissolved |
| Lucasvarity Holdings Ltd | 01061033 | 25/11/1996 | 07/08/1998 | Dissolved |
| Lucasvarity Investments Ltd | 03226944 | 02/03/1998 | 07/08/1998 | Dissolved |
| MAVENIR IPA UK LIMITED | 03400157 | 05/10/2000 | 04/06/2006 | One Red Flag |
| PERKINS ENGINES GROUP LIMITED | 00771951 | 15/10/1991 | 11/03/1998 | Not Trading |
| PERKINS GROUP LIMITED | 02388892 | 15/10/1991 | 11/03/1998 | Silver |
| PERKINS LIMITED | 00624567 | 15/10/1991 | 11/03/1998 | Not Trading |
| PERKINS SMALL ENGINES LIMITED | 02978384 | 29/03/1995 | 11/03/1998 | Not Trading |
| Perkins Asia Pacific Ltd | 03155960 | 29/04/1996 | 11/03/1998 | Dissolved |
| Perkins Compact Engines Ltd | 02388839 | 15/10/1991 | 11/03/1998 | Dissolved |
| Perkins Engines (Peterborough) Ltd | 02388848 | 15/10/1991 | 11/03/1998 | Dissolved |
| Perkins Executive Pension Trust Ltd | 00509136 | 06/06/1992 | 12/11/1997 | Dissolved |
| Perkins International Ltd | 02388859 | 15/10/1991 | 11/03/1998 | Dissolved |
| Perkins Parts Ltd | 03026611 | 22/03/1995 | 11/03/1998 | Dissolved |
| Perkins Power Sales & Service Ltd | 03026612 | 22/03/1995 | 11/03/1998 | Dissolved |
| Perkins Technology Ltd | 02388841 | 15/10/1991 | 11/03/1998 | Dissolved |
| Plessey Military Communications Ltd | 01356192 | 25/02/1991 | 30/08/1991 | Dissolved |
| RADIOSCAPE LIMITED | 03281923 | 20/02/2007 | 20/05/2009 | Dissolved |
| SGS TELECOMMUNICATIONS EUROPE LIMITED | 04165129 | 21/02/2001 | 12/09/2006 | Dissolved |
| SGS TELECOMMUNICATIONS EUROPE LIMITED | 04165129 | 09/04/2001 | 12/09/2006 | Dissolved |
| Stylealpha Ltd | 02554988 | 11/12/1997 | 07/08/1998 | Dissolved |
| TERAPROBE LIMITED | 04132123 | 23/07/2007 | 01/11/2012 | Silver |
| TERAVIEW LIMITED | 04126946 | 12/04/2007 | 01/11/2012 | Amber |
| TTP COMMUNICATIONS LIMITED | 03962172 | 22/09/2000 | 23/01/2007 | Silver |
| TTP COMMUNICATIONS LIMITED | 03962172 | 04/09/2000 | 23/01/2007 | Silver |
| TTPCOM LIMITED | 03475732 | 22/09/2000 | 23/01/2007 | Silver |
| TTPCOM LIMITED | 03475732 | 22/09/2000 | 23/01/2007 | Silver |
| UNITED ENGINEERING FORGINGS LIMITED | 03261103 | 16/09/1998 | 30/09/2000 | Dissolved |
| ZERO WASTE HOLDINGS LIMITED | 03639624 | 29/04/1999 | 31/07/2001 | Dissolved |
| ZF AUTOMOTIVE UK LIMITED | 00872948 | 02/03/1998 | 07/08/1998 | Silver |
| ZF INTERNATIONAL UK LIMITED | 00054802 | 02/03/1998 | 07/08/1998 | Bronze |