| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| The Institute of Applied Catalysis | 03482728 | 12/12/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ESPRIT ASSOCIATES (EUROPE) LIMITED | 06490860 | 01/02/2008 | 01/11/2016 | Dissolved |
| ESPRIT ASSOCIATES (EUROPE) LIMITED | 06490860 | 01/02/2008 | 01/11/2016 | Dissolved |
| IMPACT FARADAY LTD. | 04955031 | 06/11/2003 | 07/05/2009 | Dissolved |
| PROCESS ASSET INTEGRATION AND MANAGEMENT (TRADING AS PROAIM) LTD | 07969647 | 29/02/2012 | 01/11/2016 | Bronze |
| PROCESS INTEGRATION LIMITED | 05222935 | 31/10/2007 | 19/12/2014 | One Red Flag |
| ROUTEWARE LIMITED | SC201416 | 05/03/2001 | 31/10/2016 | Silver |
| SIEMENS PROCESS SYSTEMS ENGINEERING LIMITED | 03307708 | 01/05/2001 | 31/01/2015 | One Red Flag |
| SPIRITUS CONSULTING LIMITED | 02987885 | 01/04/2001 | 08/06/2007 | Gold |
| SPIRITUS GROUP LIMITED | 04252340 | 02/07/2002 | 30/06/2007 | Amber |