- BOYD & SIMPSON LTD- SC774107 - Incorporated on 28 June 2023 
- SIMPSON BROS LTD- 15529879 - Incorporated on 28 February 2024 
- SIMPSONS FLORISTS LTDDissolved- 05633934 - Dissolved on 8 September 2009 
- SIMPSON PROPERTY SERVICES (SCOTLAND) LTD- SC259399 - Incorporated on 17 November 2003 
- BAYWILL (UK) LIMITED- 04141141 - Incorporated on 15 January 2001 
- GRANT MURRAY LIMITED- 04923903 - Incorporated on 7 October 2003 
- MARGARET SIMPSON ENTERPRISES LIMITED- 04940215 - Incorporated on 22 October 2003 
- S&M SUBSIDIARY LIMITED- SC710202 - Incorporated on 22 September 2021 
- BLOSSOM SOCIAL CARE LIMITED- 13939796 - Incorporated on 25 February 2022 
- CAS EVENTS LIMITEDDissolved- 06532566 - Dissolved on 13 May 2015 
- SIMPSON ESTATE AGENCY (NORTHANTS) LLP- OC348346 - Incorporated on 2 September 2009 
- ADDO CREATIVE- 07563417 - Incorporated on 14 March 2011 
- SIMPSONS NURSERIES LIMITED- 06342680 - Incorporated on 14 August 2007 
- SIMPSON INDUSTRIES NO.2 LIMITEDDissolved- 02353406 - Dissolved on 21 August 2012 
- SIMPSON ARBORICULTURE LIMITED- 10432448 - Incorporated on 18 October 2016 
- SIMPSON & SHAW LLP- SO300516 - Incorporated on 5 January 2005 
- HART SIMPSON LTDDissolved- 07447888 - Dissolved on 1 October 2013 
- JILL SIMPSON LTDActive - Proposal to Strike off- 08246625 - Incorporated on 10 October 2012 
- SIMPSON AND BOYD- LP002841 - Incorporated on 1 April 1980 
- OMER SIMPSON LTDActive - Proposal to Strike off- 08962272 - Incorporated on 27 March 2014