- SINCLAIR CARS LTD- 07806640 - Incorporated on 12 October 2011 
- EMMA SINCLAIR 1340 LTDActive - Proposal to Strike off- 10053632 - Incorporated on 9 March 2016 
- 62 SINCLAIR MGMT LTD- 16483547 - Incorporated on 29 May 2025 
- SINCLAIR MATTHEWS UK LTDDissolved- 04744326 - Dissolved on 25 June 2013 
- G.S. PRINT (YEOVIL) LIMITEDLiquidation- 04512484 - Incorporated on 15 August 2002 
- SINCLAIR SPATIAL SOLUTIONS LIMITEDLiquidation- 04728636 - Incorporated on 9 April 2003 
- CURRANEYE LTD- 07417795 - Incorporated on 25 October 2010 
- SINCLAIR ROOFING LTDLiquidation- 07847702 - Incorporated on 15 November 2011 
- PENHURST (ELKINGTON) LTD.- 02733546 - Incorporated on 22 July 1992 
- SINCLAIR LAND AND MARINE LTDActive - Proposal to Strike off- 03194725 - Incorporated on 3 May 1996 
- RETRO COMPUTERS LIMITEDDisolved- 08831435 - Dissolved on 5 November 2021 
- DLL SERVICE LIMITEDDisolved- 12860295 - Dissolved on 19 April 2022 
- AP CONTRACTING GROUP LIMITEDDisolved- 11506934 - Dissolved on 20 June 2023 
- PRO ANGLE CONSTRUCTION SERVICES LTDDisolved- 13717029 - Dissolved on 8 July 2025 
- SINCLAIR JAMES LIMITED- 15870838 - Incorporated on 1 August 2024 
- MR & MRS WHIPPY LTDActive - Proposal to Strike off- 13216857 - Incorporated on 22 February 2021 
- MR & MRS STUDIO LTD- 16496214 - Incorporated on 4 June 2025 
- SINCLAIR MOTT LTDDisolved- 12595084 - Dissolved on 15 July 2025 
- ALAN J SINCLAIR LTDActive - Proposal to Strike off- 04710107 - Incorporated on 25 March 2003 
- SINCLAIR HALL LTD- 08256820 - Incorporated on 17 October 2012