| Company | Timeline | Status | |
| Building Engineering Services Competence Assessment Limited Director • Chief Executive | 4 Mar 1999←2 Months→28 May 1999 | Active | |
| Refcom Limited Director • Chief Executive | 22 Feb 1999←3 Months→28 May 1999 | Active | |
| Piper Assessment Limited Director • Chief Executive | 5 May 1998←1 Year→28 May 1999 | Active | |
Construction Quality Assurance Limited Director • Chief Executive | 8 Oct 1997←1 Year 7 Months→28 May 1999 | Dissolved | |
| Piper Training Limited Director • Chief Executive | 8 Oct 1997←1 Year 7 Months→28 May 1999 | Active | |
| Welplan Limited Director • Chief Executive | 17 Sep 1997←1 Year 8 Months→28 May 1999 | Active | |
| Piper Commissions Limited Director • Chief Executive | 28 Jul 1997←1 Year 10 Months→28 May 1999 | Active | |
| Building Engineering Services Training Limited Director • Chief Executive | 5 Jun 1997←1 Year 11 Months→28 May 1999 | Active | |
| B&Esa Limited Director • Chief Executive | 7 May 1997←2 Years→28 May 1999 | Active | |
