| Company | Timeline | Status | |
| Derek J Smith (Hucknall) Limited Director • Chartered Certified Accountant | 1 Apr 2004←21 Years→Current | Active | |
| The Payroll Agency (UK) Limited Director • Accountant | 29 Feb 2004←21 Years→Current | Active | |
| Smith Cookson Accountants Limited Director • Accountant | 29 Feb 2004←1 Year 8 Months→31 Oct 2005 | Active | |
| Smith Cookson Financial Services Limited Director • Accountant | 29 Feb 2004←2 Years→4 Mar 2006 | Active | |
| Cooksons Accountants Limited Director • Accountant | 29 Feb 2004←11 Months→22 Feb 2005 | Active | |
| Dutton Property Services Limited Director • Accountant | 29 Feb 2004←15 Years→9 Jun 2019 | Active | |
| The Payroll Agency Limited Director • Accountant | 28 Jan 2004←6 Years→1 Mar 2010 | Active | |
