| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADVANCED TECHNICAL SERVICES LIMITED | 02568731 | 22/12/2004 | Dissolved |
| BOOTHAM ENGINEERS(EASTFIELD)LIMITED | 00322901 | 22/12/2004 | Dissolved |
| D&M DORMANCO (BITE) LIMITED | 01609805 | 22/12/2004 | Dissolved |
| D&M DORMANCO (CSL) LIMITED | 00968016 | 22/12/2004 | Dissolved |
| D&M DORMANCO (EM) LIMITED | 00484927 | 22/12/2004 | Dissolved |
| D&M DORMANCO (ES) LIMITED | 01622315 | 22/12/2004 | Dissolved |
| D&M DORMANCO (GL) LIMITED | 00450402 | 22/12/2004 | Dissolved |
| D&M DORMANCO (I&C) LIMITED | 00498842 | 22/12/2004 | Dissolved |
| D&M DORMANCO (LMC) LIMITED | 00999776 | 22/12/2004 | Dissolved |
| D&M DORMANCO (LMMR) LIMITED | 00652726 | 22/12/2004 | Not Trading |
| D&M DORMANCO (NE) LIMITED | 01073091 | 22/12/2004 | Dissolved |
| D&M DORMANCO (SCOTLAND) LIMITED | SC028056 | 22/12/2004 | Dissolved |
| D&M DORMANCO (SF) LIMITED | 02752252 | 22/12/2004 | Dissolved |
| D&M DORMANCO (SOUTH) LIMITED | 00914189 | 22/12/2004 | Dissolved |
| D&M DORMANCO (TB) LIMITED | 01148800 | 22/12/2004 | Dissolved |
| D&M DORMANCO (TES) LIMITED | 01433562 | 22/12/2004 | Dissolved |
| D&M DORMANCO (VPS) LIMITED | 02773339 | 22/12/2004 | Dissolved |
| D&M DORMANCO FALKIRK LIMITED | SC064364 | 22/12/2004 | Dissolved |
| D&M DORMANCO LIMITED | 01387886 | 22/12/2004 | Dissolved |
| DOWDING & MILLS INVESTMENTS LIMITED | 03791407 | 22/12/2004 | Dissolved |
| FRIDGEMOTORS LIMITED | 00711598 | 22/12/2004 | Dissolved |
| INSTRUMENT SERVICES (HITCHIN) LIMITED | 00790370 | 22/12/2004 | Dissolved |
| INSTRUMENT SERVICES LIMITED | 01300861 | 22/12/2004 | Dissolved |
| M.S.L. CALIBRATION CENTRE LIMITED | SC058267 | 22/12/2004 | Dissolved |
| M.S.L. INSTRUMENT SERVICES LIMITED | 01405634 | 22/12/2004 | Dissolved |
| MICROWAVE SECURITIES LIMITED | 01567217 | 22/12/2004 | Dissolved |
| MSL LOWTECH LIMITED | 01285224 | 22/12/2004 | Dissolved |
| R W GEAR LIMITED | 03378744 | 22/12/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOOTHAM ENGINEERS LIMITED | 00261318 | 22/12/2004 | 02/01/2018 | Dissolved |
| CASTLE SUPPORT SERVICES PLC | 05351402 | 19/06/2007 | 22/12/2017 | Not Trading |
| D&M DORMANCO (N) LIMITED | 01040493 | 22/12/2004 | 31/12/2017 | Dissolved |
| D&M DORMANCO (WEST) LIMITED | 00842155 | 22/12/2004 | 31/12/2017 | Dissolved |
| DM SYSTEMS GROUP LIMITED | 07273959 | 04/06/2010 | 16/06/2010 | Bronze |
| DOWDING & MILLS (NOMINEES) LIMITED | 00404173 | 22/12/2004 | 22/12/2017 | Not Trading |
| DOWDING & MILLS (OVERSEAS) LIMITED | 01396382 | 22/12/2004 | 22/12/2017 | Not Trading |
| DOWDING & MILLS(UK) LIMITED | 00914188 | 22/12/2004 | 31/12/2017 | Not Trading |
| DOWDING AND MILLS LIMITED | 00160837 | 06/09/2004 | 31/12/2017 | Not Trading |
| ELECO DOWDING & MILLS LIMITED | SC141655 | 01/12/2006 | 22/12/2017 | Not Trading |
| LONRHO AFRICA TRADE & FINANCE LIMITED | 00126250 | 19/06/2007 | 22/12/2017 | Dissolved |
| SUKDB PENSION TRUSTEES LIMITED | 01037132 | 01/02/2013 | 22/12/2017 | Not Trading |
| SULZER SERVICES (UK) LIMITED | 00270442 | 06/09/2004 | 22/12/2017 | Silver |