| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CH (CAMBRIDGE) LIMITED | 02601543 | 16/07/1991 | Dissolved |
| E M Instruments Ltd | 03437455 | 11/08/1998 | Dissolved |
| ELEMENTAL MICRO-ANALYSIS LIMITED | 01281028 | 06/04/1998 | Bronze |
| KODE (DEVON) LTD | 01311528 | 14/08/1998 | Dissolved |
| MAT INTERCO LIMITED | 09347410 | 16/02/2015 | One Red Flag |
| OEA LABORATORIES LIMITED | 05766674 | 07/12/2018 | Gold |
| SCI-LAB ANALYTICAL LIMITED | 03530351 | 30/09/2017 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| MICRO ANALYSIS TECHNOLOGY LTD | 04667073 | 30/06/2004 | 28/08/2019 | Dissolved |