| Company | Timeline | Status | |
| Williams Motor Co. Limited Director • Unreported | 23 May 2000←25 Years→Current | Active | |
| Williams Rochdale Limited Director • Unreported | 12 Nov 1999←26 Years→Current | Active | |
| Williams Motor Co.(Holdings)Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
