| Company | Timeline | Status | |
| Charles Gregory (Civil Engineering) Limited Director • Civil Engineer | 22 Nov 1991←2 Years 11 Months→11 Nov 1994 | Dissolved | |
| Charles Grip Surfacing Limited Director • Engineer | 21 Nov 1991←2 Years 11 Months→11 Nov 1994 | Dissolved | |
| Charles Grip Surfacing Limited Director • Unreported | 1 Jan 1970←24 Years→11 Nov 1994 | Dissolved | |
