- MSI CONSULTANTS LIMITEDDissolved- 06508965 - Dissolved on 6 May 2014 
- SINCLAIR FACILITIES MANAGEMENT LTD- 13713933 - Incorporated on 1 November 2021 
- SINCLAIR GLOBAL LTD- 13831274 - Incorporated on 5 January 2022 
- ASCOT SINCLAIR LIMITEDActive - Proposal to Strike off- 11823826 - Incorporated on 13 February 2019 
- J M STEPHEN- SL002269 - Incorporated on 25 August 1993 
- SINCLAIRMARWICK LTD- SC686283 - Incorporated on 18 January 2021 - 30 Alloway Wynd, Larbert, FK5 4FE 
- VON SINCLAIR LTDDisolved- 09905744 - Dissolved on 9 May 2023 - Manor Road, Woodham Walter, CM9 6GH 
- J.R. SINCLAIR & SON LTDDisolved- 13303653 - Dissolved on 5 September 2023 
- SINCLAIR LEO LTDDisolved- 14640633 - Dissolved on 16 July 2024 
- SINCLAIRMMA LTDActive - Proposal to Strike off- 06862275 - Incorporated on 28 March 2009 
- SINCLAIR SEO LTD- 07585306 - Incorporated on 31 March 2011 
- SINCLAIR OPS LTD- 13582919 - Incorporated on 24 August 2021 
- SINCLAIRDIGITALMARKETING LTDDisolved- 15333472 - Dissolved on 15 April 2025 
- SINCLAIRMOSS LTD- 16206281 - Incorporated on 24 January 2025 
- MR & MRS SEW 'N' SEW LTD.- 07606830 - Incorporated on 18 April 2011 
- MR&MRS CLEAN LTDDisolved- 13755600 - Dissolved on 16 May 2023 
- MR&MRS STORE LTD- 16474263 - Incorporated on 27 May 2025 
- ARTHUR KING LTDActive - Proposal to Strike off- 09908614 - Incorporated on 9 December 2015 
- ARTHURSON LTDDisolved- 12762609 - Dissolved on 6 June 2023 
- JUST ARTHUR LTD.- 12484902 - Incorporated on 26 February 2020