- ET SIMPSON LTDDisolved- 13622655 - Dissolved on 26 March 2024 
- H SIMPSON IP LTD- 14721589 - Incorporated on 10 March 2023 
- SUSTAINABLE SOLUTIONS CONSTRUCTION LTD- 11720412 - Incorporated on 10 December 2018 
- TOMORROW CREATES LTDDisolved- 11692435 - Dissolved on 26 November 2024 
- REGALIS PROPERTY LTD- 13060157 - Incorporated on 3 December 2020 
- THOM & TEA LIMITEDDisolved- SC497909 - Dissolved on 10 August 2021 
- ONE TO ONE (UK) LIMITED- 03113793 - Incorporated on 13 October 1995 
- SIMON THE BEEKEEPER LTD- 14721692 - Incorporated on 10 March 2023 
- APPOSABLE LTD- 07788862 - Incorporated on 27 September 2011 
- SR PROPERTY MAINTENANCE LTD- 15572996 - Incorporated on 18 March 2024 
- TOMAS TOMOSIUS LTD- 12234225 - Incorporated on 30 September 2019 
- SIMPSON'S JET LTDActive - Proposal to Strike off- 08946910 - Incorporated on 19 March 2014 
- JAN SIMPSON LTD- 09329316 - Incorporated on 26 November 2014 
- JB SIMPSON & CO LTD- SC854749 - Incorporated on 7 July 2025 
- CST UTILITIES AND GROUNDWORKS LTD- 12024538 - Incorporated on 30 May 2019 
- RV SIMPSON & SONS- LP004125 - Incorporated on 5 November 1991 
- SIMPSON & OAG LTD- SC420157 - Incorporated on 22 March 2012 
- IAN SIMPSON LTD- 10294638 - Incorporated on 25 July 2016 
- C AND M SIMPSON LTD- 10849510 - Incorporated on 4 July 2017 
- SIMPSON BMC LTD- 12146574 - Incorporated on 8 August 2019