- DAVID JOHNSON LEGAL LIMITED- SC662134 - Incorporated on 26 May 2020 
- KNUTSFORD SWEETS LIMITED- 07872977 - Incorporated on 6 December 2011 
- JOHN E. WILLIAMS CONSULTANCY LTDActive - Proposal to Strike off- 06695532 - Incorporated on 11 September 2008 
- JOHN WILLIAMS ENGINEERING LTD- 07398349 - Incorporated on 6 October 2010 
- SIMMS BUSINESS LTD- 08727372 - Incorporated on 10 October 2013 
- SIMMS & SONS LIMITED- 09132155 - Incorporated on 15 July 2014 
- SIMMS & HAGGARTY LTD- 09201677 - Incorporated on 3 September 2014 
- MR SIMMS CARDIFF LTD- 16592194 - Incorporated on 18 July 2025 
- SIMMS TRADERS LTDActive - Proposal to Strike off- 10333856 - Incorporated on 17 August 2016 
- MR SIMMS ELTHAM LTD- 15865533 - Incorporated on 30 July 2024 
- WILLIAMS & JOHNSON COFFEE CO. LTD- SC730214 - Incorporated on 21 April 2022 
- JOHN WILLIAMS & ASSOCIATES LTDDisolved- 05452650 - Dissolved on 19 March 2024 
- JOHN WILLIAMS INDUSTRIES PLC- 00064330 - Dissolved on 27 October 2015 
- WILLIAM JOHNSTONE RACING LTDDisolved- SC619826 - Dissolved on 17 June 2025 
- JOHN WILLIAMS RECRUITMENT LTD- 12056939 - Incorporated on 18 June 2019 
- JOHN WILLIAMS PHOTOGRAPHY LTD- 06915091 - Incorporated on 26 May 2009 
- JOHN WILLIAMS COMMUNICATIONS LTDActive - Proposal to Strike off- 09388427 - Incorporated on 14 January 2015 
- GARETH JOHN WILLIAMS LIMITED- 12838742 - Incorporated on 26 August 2020 
- WILLIAM JOHNSON FLOORING LTD- 16112234 - Incorporated on 2 December 2024 
- DAVID MICHAEL WILLIAMS LIMITED- 08014953 - Incorporated on 2 April 2012