| Company | Timeline | Status | |
| Filter Specialists Limited Director • Company Director | 31 May 2002←16 Years→26 Jun 2018 | Active | |
| Filter Systems Limited Director • Retired | 27 Feb 1998←20 Years→26 Jun 2018 | Active | |
| Allied Filter Systems Limited Director • Retired | 10 Apr 1995←15 Years→7 Jun 2010 | Active | |
| F.S.I. Filter Systems Irlam Limited Director • Chemist | 11 Dec 1991←26 Years→26 Jun 2018 | Active | |
| Libra Speciality Chemicals Limited Director • Chemist | 11 Dec 1991←2 Years 8 Months→30 Aug 1994 | Active | |
Filter Specialists International Limited Director • Chemist | 14 Nov 1991←8 Years→16 Nov 1999 | Dissolved | |
