- GE SIMPSON LTDActive - Proposal to Strike off- 06942212 - Incorporated on 23 June 2009 
- MA SIMPSON'S LTD.- SC250616 - Incorporated on 5 June 2003 
- DR C J SIMPSON LTD- 07633820 - Incorporated on 13 May 2011 
- IL SIMPSON LTDActive - Proposal to Strike off- 08931920 - Incorporated on 10 March 2014 
- SIMPSON TM LTDDisolved- 12306289 - Dissolved on 4 January 2022 
- DJ SIMPSON LTDDisolved- 14356108 - Dissolved on 20 February 2024 
- P SIMPSON TM LTD- 16094376 - Incorporated on 21 November 2024 
- IH SIMPSON LTDDisolved- 13492051 - Dissolved on 18 July 2023 
- NN SIMPSON LTDDisolved- NI681221 - Dissolved on 7 January 2025 
- PK SIMPSON LTDDisolved- 14149977 - Dissolved on 23 January 2024 
- SIMPSON TM LTD- 16038563 - Incorporated on 24 October 2024 
- CHRIS SIMPSON- 07472697 - Incorporated on 17 December 2010 
- PORTLAND 30 LLP- OC352399 - Incorporated on 17 February 2010 
- TOMATO & TOMATO LTDActive - Proposal to Strike off- 14853831 - Incorporated on 8 May 2023 
- KP SIMPSON LTD- 07986229 - Incorporated on 12 March 2012 
- D A SIMPSON UK LTD- 09908476 - Incorporated on 9 December 2015 
- SA SIMPSON LTD- 10353919 - Incorporated on 1 September 2016 
- HP SIMPSON LTDDisolved- 13918803 - Dissolved on 15 August 2023 
- S SIMPSON TM LTDActive - Proposal to Strike off- 15695956 - Incorporated on 30 April 2024 
- SIMPSONS 247 LTD- 15226436 - Incorporated on 21 October 2023