- ROBERT WILLIAMS TRADING LIMITED- 05854752 - Incorporated on 22 June 2006 
- ROBERT WILLIAMS ASSOCIATES LTDDissolved- 06213503 - Dissolved on 6 November 2012 
- CHARLIE ROBERT WILLIAMS LTD- 09087275 - Incorporated on 16 June 2014 
- ROBERT CARY-WILLIAMS LIMITEDActive - Proposal to Strike off- 08252499 - Incorporated on 15 October 2012 
- ROBERT D. WILLIAMS LIMITED- 08210950 - Incorporated on 12 September 2012 
- ROBERT WILLIAMS PARTNERSHIP LIMITED- 10752776 - Incorporated on 3 May 2017 
- ROBERT KELVIN WILLIAMS LTD- 15912980 - Incorporated on 22 August 2024 
- ROBERT CARY-WILLIAMS LIMITED- 05895168 - Incorporated on 3 August 2006 
- ROBERT IAN WILLIAMS LIMITED- 04981922 - Incorporated on 2 December 2003 
- ROBERT G. WILLIAMS LIMITED- SC129127 - Incorporated on 24 December 1990 
- ROBERT GEORGE WILLIAMS LIMITEDDisolved- 14198881 - Dissolved on 9 May 2023 
- JAMIE ROBERT WILLIAMS LTD- NI722986 - Incorporated on 25 October 2024 
- WILLIAMS ASSOCIATES (MR) LIMITED- 10507919 - Incorporated on 2 December 2016 
- JOHN ROBERT WILLIAMSS LTDDisolved- 15320676 - Dissolved on 6 May 2025 
- SPECIALIZED SECURITY SOLUTIONS LIMITEDActive - Proposal to Strike off- 08127338 - Incorporated on 3 July 2012 
- MR GAVIN ROBERT DORMAN LTDDisolved- 15364831 - Dissolved on 27 August 2024 
- ROBERTS & WILLIAMS LIMITEDDisolved- 00775614 - Dissolved on 24 August 2022 
- WILLIAMS ROBERTS LIMITEDActive - Proposal to Strike off- 11052408 - Incorporated on 7 November 2017 
- MR DAVID ROBERT WEAVER LTD.Active - Proposal to Strike off- 15543865 - Incorporated on 6 March 2024 
- MR WILLIAMS RAIL CO LIMITEDDisolved- 12268602 - Dissolved on 11 April 2023