| Company | Timeline | Status | |
| Mewn Cymeriad / In Character Ltd Director • Director/publishing | 21 Mar 2023←2 Years 7 Months→Current | Active | |
| Gwasanaethau Sain CBC Director • Director | 12 Jun 2019←6 Years→Current | Active | |
| CWRW Llyn Cyf Director • Director | 10 Sep 2010←15 Years→Current | Active | |
| CWLWM Cyhoeddwyr Cymru Secretary • Cyhoeddwr | 1 Jul 2005←20 Years→Current | Active | |
Cwmni Largo Cyf Director • Cyhoeddwr | 20 Oct 2003←5 Years→21 Jan 2009 | Dissolved | |
| Llygad Gwalch Cyf Director • Publisher | 14 Aug 2003←22 Years→Current | Active | |
| Cwmni Cydweithredol Cymunedol Tafarn Y Fic Cyfyngedig Director • Cyhoeddwr | 1 Feb 2001←24 Years→Current | Active | |
| Carreg Gwalch Cyf Director • Cyhoeddwr | 28 Jun 2000←25 Years→Current | Active | |
| Theatr Bara Caws Director • Cyhoeddwr | 14 Jan 1997←3 Years→4 Jul 2000 | Active | |
| Arianrhod Cyfyngedig Director • Cyhoeddwr | 18 Sep 1991←31 Years→2 May 2023 | Dissolved | |
