| Company | Timeline | Status | |
| Avoncrop Amenity Products Limited Director • Company Director | 15 Aug 2002←14 Years→21 Apr 2017 | Active | |
| Aitken's Sportsturf Limited Director • Unreported | 30 Dec 1996←28 Years→Current | Active | |
| Richard Aitken (Seedsmen) Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
