| Company | Timeline | Status | |
| The Millar Foundation Director • Company Director | 16 Nov 2017←7 Years→Current | Active | |
| Mark Millar Productions Ltd Director • Writer | 10 Sep 2010←15 Years→Current | Active | |
| Clint Entertainment Limited Director • Writer | 15 Jun 2010←15 Years→Current | Active | |
| Millarworld Limited Director • Writer | 28 Oct 2009←7 Years→4 Aug 2017 | Active | |
