| Company | Timeline | Status | |
| The National Federation Of Roofing Contractors Limited Director • Company Director (roofing) | 13 Mar 1992←2 Months→22 May 1992 | Active | |
| NFRC Commercial Limited Director • Managing Director | 3 Jul 1991←10 Months→22 May 1992 | Active | |
| Roofcert Limited Director • Managing Director | 3 Jul 1991←10 Months→22 May 1992 | Active | |
Thomas M. Devon & Company Limited Director • Roofing Contractor | 26 Sep 1988←28 Years→12 Nov 2016 | Active | |
