- DAVID WILLIAMS & CO LIMITEDLiquidation- 02078287 - Incorporated on 28 November 1986 
- MARTYN WILLIAMS PLUMBING AND HEATING LIMITED- 07182247 - Incorporated on 9 March 2010 
- DAVID WILLIAMS PLAYTHINGS LIMITEDActive - Proposal to Strike off- 01122322 - Incorporated on 12 July 1973 
- DAVID WILLIAMS ENGINEERING LTDActive - Proposal to Strike off- 09190035 - Incorporated on 28 August 2014 
- DAVID WILLIAMS ELECTRICALS LIMITEDActive - Proposal to Strike off- 08992286 - Incorporated on 11 April 2014 
- DAVID WILLIAMS DECORATING LTD- 09551184 - Incorporated on 20 April 2015 
- DAVID WILLIAMS TRANSPORT LIMITED- 15885516 - Incorporated on 8 August 2024 
- DAVID WILLIAMS SECURITY LTDDisolved- 14543191 - Dissolved on 28 January 2025 
- DAVID WILLIAMS HAULAGE LIMITEDActive - Proposal to Strike off- 04877701 - Incorporated on 27 August 2003 
- DAVID WILLIAMS INVESTMENTS LTD- 05396055 - Incorporated on 17 March 2005 
- DAVID WILLIAMS CONSULTING LIMITEDDissolved- 07273741 - Dissolved on 17 January 2012 
- SIMON DAVID WILLIAMS LIMITED- 05873663 - Incorporated on 12 July 2006 
- DAVID ROY WILLIAMS LIMITED- 10912989 - Incorporated on 14 August 2017 
- DAVID WILLIAMS JOINERY LIMITED- SC811259 - Incorporated on 22 May 2024 
- DAVID WILLIAMS (LLANDUDNO) LIMITED- 00456404 - Incorporated on 29 June 1948 
- DAVID WILLIAMS PHOTOGRAPHY LTDDissolved- 05028974 - Dissolved on 6 August 2013 
- DAVID MICHAEL WILLIAMS LIMITED- 08014953 - Incorporated on 2 April 2012 
- DAVID WILLIAMS (BUILTH) LIMITED- 00390561 - Incorporated on 21 October 1944 
- DAVID WILLIAMS PROPERTIES LIMITED- 01254445 - Incorporated on 12 April 1976 
- DAVID WILLIAMS TEXTILES LTDDissolved- 08806125 - Dissolved on 29 January 2019