| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CKV LIMITED | 02082358 | 04/12/1992 | Dissolved |
| GRASEBY OVERSEAS HOLDINGS LIMITED | 01658832 | 31/10/1997 | Dissolved |
| LIGHTHOME LIMITED | 02518749 | 05/07/1992 | Dissolved |
| M.J.A. DYNAMICS LIMITED | 01915688 | 21/12/1995 | Dissolved |
| M.J.A. DYNAMICS LIMITED | 01915688 | 14/10/2014 | Dissolved |
| MICRO CIRCUIT ENGINEERING LIMITED | 01047586 | 11/12/2000 | Dissolved |
| MICRO CIRCUIT ENGINEERING LIMITED | 01047586 | 14/10/2014 | Dissolved |
| PGM SYSTEMS LIMITED | 01570272 | 28/11/2008 | Dissolved |
| PYE OF CAMBRIDGE LIMITED | 00674887 | 31/10/1997 | Dissolved |
| SEDDING (NO.1) LIMITED | 00721107 | 28/11/2008 | Dissolved |
| SFIN 1 | 05179177 | 28/11/2008 | Dissolved |
| SITI 2 | 04257040 | 23/07/2001 | Dissolved |
| SMITHS DETECTION (PREFERENCE) | 00761996 | 28/11/2008 | Dissolved |
| SMITHS INDUSTRIES FINCO 2 LIMITED | 04045937 | 28/07/2000 | Dissolved |
| SMITHS INDUSTRIES XGK LIMITED | 00514352 | 11/12/2000 | Dissolved |
| STEWART HUGHES LIMITED | 01494840 | 28/11/2008 | Dissolved |
| TI GLOBAL LIMITED | 03849147 | 28/11/2008 | Dissolved |
| TI GROUP TRUSTEES LIMITED | 02967807 | 28/11/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FLEXIBLE DUCTING, LIMITED | SC029203 | 11/12/2000 | 05/04/2017 | Not Trading |
| GRASEBY LIMITED | 00894638 | 11/12/2000 | 05/04/2017 | Gold |
| PYZOTEC LIMITED | 02144999 | 04/12/1992 | 05/04/2017 | Dissolved |
| ROOF UNITS (GROUP) LIMITED | 02490139 | 11/12/2000 | 05/04/2017 | Not Trading |
| SI OVERSEAS HOLDINGS LIMITED | 03288100 | 11/12/2000 | 11/12/2008 | Bronze |
| SI PROPERTIES LIMITED | 00160881 | 11/12/2000 | 05/04/2017 | Silver |
| SI PROPERTIES LIMITED | 00160881 | 30/07/2013 | 05/04/2017 | Silver |
| SITI 1 LIMITED | 04257042 | 23/07/2001 | 05/04/2017 | Dissolved |
| SMITHS GROUP INTERNATIONAL HOLDINGS LIMITED | 01085153 | 27/11/2007 | 05/04/2017 | Gold |
| SMITHS HEALTHCARE LIMITED | 00075831 | 04/12/1992 | 05/04/2017 | Dissolved |
| SMITHS INDUSTRIES INDUSTRIAL GROUP LIMITED | 00941519 | 21/01/1998 | 31/03/2011 | Gold |
| SMITHS INDUSTRIES LIMITED | 00391027 | 04/12/1992 | 05/04/2017 | Not Trading |
| SMITHS NOMINEES LIMITED | 00438838 | 04/12/1992 | 05/04/2017 | Not Trading |
| T I GROUP LIMITED | 00156641 | 31/07/2007 | 05/04/2017 | Not Trading |
| XDG LIMITED | 00530526 | 28/11/2008 | 05/04/2017 | Not Trading |