| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | CO2SENSE C.I.C. | 🇬🇧Regno Unito | Active | 07/04/2026 – 03/02/2011 |
| Officer | DIAMOND SHAPE LIMITED | — | Dissolved | 13/06/2026 – 29/01/2007 |
| Officer | RED PLANET LIMITED | 🇬🇧Regno Unito | Active | 04/02/2026 – 13/06/2002 |
03/02/2011
resigned
22/08/2008
appointed
12/11/2001
appointed