- MJE SIMPSON LTD- 14638081 - Incorporated on 3 February 2023 
- SIMPSONHAUGH CONSULTANTS LLPDisolved- OC337115 - Dissolved on 22 August 2023 
- SIMPSON FOX LTD- 13156969 - Incorporated on 25 January 2021 
- ROB SIMPSON LTD- 14068891 - Incorporated on 26 April 2022 
- SIR SIMPSON LTDActive - Proposal to Strike off- 07546460 - Incorporated on 1 March 2011 
- D M SIMPSON & SON LTDDisolved- 08525564 - Dissolved on 23 August 2022 
- SIMPSON ICT LTD- 08578110 - Incorporated on 20 June 2013 
- SPE SIMPSON LTD- 12694017 - Incorporated on 24 June 2020 
- JAC SIMPSON LTD.Disolved- SC631044 - Dissolved on 13 December 2022 
- B & S TOM LTD- 09534287 - Incorporated on 9 April 2015 
- TOM P K LTDDisolved- SC677763 - Dissolved on 22 March 2022 
- TOM 95 LTDDisolved- 14981314 - Dissolved on 2 July 2024 
- TOM3D LTDActive - Proposal to Strike off- 15689999 - Incorporated on 29 April 2024 
- SIMPSON GPS LTDActive - Proposal to Strike off- NI060234 
- JPM SIMPSON LTDDisolved- 07703425 - Dissolved on 3 November 2021 
- PRF SIMPSON LTD- 10603451 - Incorporated on 6 February 2017 
- ALB SIMPSON LTD- 14039732 - Incorporated on 11 April 2022 
- TNG SIMPSON LTD- 15062542 - Incorporated on 10 August 2023 
- SCENTT 7 LIMITEDDisolved- 12343473 - Dissolved on 26 December 2023 
- KIRWIN & SIMPSON PURFLEET LIMITEDDissolved- 02915843 - Dissolved on 12 June 2012