- NELL GWYNNE LTDActive - Proposal to Strike off- 09892218 - Incorporated on 27 November 2015 
- TY GWYN LIMITED- 03428358 - Incorporated on 3 September 1997 
- DANS GWYN LIMITEDDisolved- 12532836 - Dissolved on 13 December 2024 
- GWYN DAVIES LIMITEDDisolved- 04506049 - Dissolved on 7 March 2023 
- CABAN GWYN LIMITED- 08730896 - Incorporated on 14 October 2013 
- PERLAU GWYN LTD- 10640713 - Incorporated on 27 February 2017 
- GWYN ARCH FOUNDATION- CE031420 
- MARIAL GWYN LIMITED- 14437459 - Incorporated on 24 October 2022 
- GWYN ALLENBYS LTD- 16080375 - Incorporated on 14 November 2024 
- DU A GWYN LIMITEDActive - Proposal to Strike off- 08816414 - Incorporated on 16 December 2013 
- BDS GWYNEDD LTD- 08635705 - Incorporated on 2 August 2013 
- CEFFYL GWYN LTDLiquidation- 13833847 - Dissolved on 27 June 2023 
- GWYN DRINKS LTD- 09220229 - Incorporated on 16 September 2014 
- EIRA GWYN LIMITEDActive - Proposal to Strike off- 08473051 - Incorporated on 4 April 2013 
- GWYN DAI LIMITEDDisolved- 14452731 - Dissolved on 28 January 2025 
- PLAS GWYN LIMITED- 01705579 - Incorporated on 10 March 1983 
- PARC GWYN LIMITED- 07142697 - Incorporated on 2 February 2010 
- GWYN PROPERTIES LIMITED- 07190736 - Incorporated on 16 March 2010 
- GWYN MORTIMER LTDDisolved- 06124677 - Dissolved on 12 April 2022 
- GWYN GRIFFITHS LTDActive - Proposal to Strike off- 08257311 - Incorporated on 17 October 2012