- WYN-M.M.J LIMITED- 09922345 - Incorporated on 18 December 2015 
- WYN THOMAS LIMITEDDissolved- 02380011 - Dissolved on 30 August 2011 
- TETE WYN LTD- NI700212 - Incorporated on 7 August 2023 
- WYN MEDIA LTDDisolved- 15301203 - Dissolved on 29 April 2025 
- WYN OWENS LTD- 08081090 - Incorporated on 24 May 2012 
- WYN-HUWS CYFYNGEDIGActive - Proposal to Strike off- 04643554 - Incorporated on 21 January 2003 
- WYN CONNECTIONS LIMITED- 07849793 - Incorporated on 16 November 2011 
- WYN TRAINING LTD- 08697948 - Incorporated on 19 September 2013 
- WYN RIVER LIMITEDDisolved- 08347848 - Dissolved on 1 February 2022 
- WYN ENGINEERING LIMITEDActive - Proposal to Strike off- 08915144 - Incorporated on 27 February 2014 
- WYN SURVEYING LIMITED- 09860668 - Incorporated on 6 November 2015 
- WYN INVESTMENT LIMITED- 12041484 - Incorporated on 10 June 2019 
- WYN DESIGN LIMITED- 09539155 - Incorporated on 13 April 2015 
- WYN SECURITY LTDDisolved- 09916528 - Dissolved on 29 April 2025 
- WYN ENTERPRISE LTD- 12434479 - Incorporated on 30 January 2020 
- WYN COMMUNICATIONS LTD- 14627384 - Incorporated on 31 January 2023 
- WYN SERVICES LTD- 15155013 - Incorporated on 22 September 2023 
- CHARTER WYN LTDActive - Proposal to Strike off- 15654197 - Incorporated on 17 April 2024 
- WYN CONSTRUCTION LIMITED- 02732520 - Incorporated on 20 July 1992 
- EIFION WYN CYF- 02583815 - Incorporated on 19 February 1991