| Company | Timeline | Status | |
| Preforma Limited Director • Director | 12 Sep 2011←2 Years 6 Months→17 Mar 2014 | Dissolved | |
| Sepura Limited Director • Managing Director | 28 Mar 2002←6 Years→1 Oct 2008 | Active | |
| Sepura Limited Director • Managing Director | 22 Mar 2002←3 Days→25 Mar 2002 | Active | |
Tunstall Vitalcall Limited Director • Company Director | 12 Sep 1995←10 Months→12 Jul 1996 | Dissolved | |
| Tunstall Response Limited Director • Director | 11 Jan 1995←1 Year 6 Months→12 Jul 1996 | Active | |
Whitley Marketing Services Limited Director • Director | 11 Jan 1995←1 Year 6 Months→12 Jul 1996 | Active | |
Tunstall BMS Limited Director • Director | 1 Oct 1994←1 Year 9 Months→12 Jul 1996 | Dissolved | |
| Tunstall Healthcare (UK) Limited Director • Director | 1 Oct 1994←1 Year 9 Months→12 Jul 1996 | Active | |
| Tunstall Group Limited Director • Director | 1 Oct 1994←1 Year 9 Months→12 Jul 1996 | Active | |
Tunstall Health Communications Limited Director • Director | 1 Oct 1994←1 Year 9 Months→12 Jul 1996 | Dissolved | |
