| Company | Timeline | Status | |
| Blythe Business Park Ltd Director • Consultant | 22 Oct 2018←9 Months→6 Aug 2019 | Active | |
| M J B (Dovefields) Ltd Director • Consultant | 21 Jun 2010←9 Years→31 Jan 2020 | Active | |
| Scentarea Limited Director • Consultant | 21 Jun 2010←9 Years→8 Aug 2019 | Active | |
| Courtrelay Limited Director • Consultant | 21 Jun 2010←9 Years→8 Aug 2019 | Active | |
| M.J. Barrett (Developments) Limited Director • Consultant | 21 Jun 2010←9 Years→8 Aug 2019 | Active | |
| Linkbox Limited Director • Consultant | 21 Jun 2010←9 Years→14 Aug 2019 | Active | |
| Systemshare Limited Director • Consultant | 21 Jun 2010←9 Years→8 Aug 2019 | Active | |
| M J Barrett Group Limited Director • Director | 20 Sep 2006←12 Years→6 Aug 2019 | Active | |
| The Malcolm Barrett Charitable Foundation Director • Unreported | 23 Mar 2006←19 Years→Current | Active | |
