- SIMPSON I.T LIMITEDActive - Proposal to Strike off- 10604116 - Incorporated on 7 February 2017 
- SHARP & SIMPSON LTDActive - Proposal to Strike off- 10699694 - Incorporated on 30 March 2017 
- JEWEL SIMPSON LTDDisolved- 12635218 - Dissolved on 12 July 2022 
- SIMPSON AUTOS LTDDisolved- 13950905 - Dissolved on 22 August 2023 
- SIMPSON & BROWN LLP- SO307660 - Incorporated on 18 November 2022 
- CHASE&SIMPSON LTD- 13087151 - Incorporated on 17 December 2020 
- LOWE & SIMPSON GROUP LIMITED- 01425179 - Incorporated on 4 June 1979 
- DAKS LIMITEDDisolved- 00303137 - Dissolved on 25 October 2022 
- ROXBURY HOMES (SHIREBROOK COURT) LIMITEDActive - Proposal to Strike off- 03732540 - Incorporated on 15 March 1999 
- NDPM LTD- 08243792 - Incorporated on 8 October 2012 
- DRAINTECH TANKERS.COM LIMITED- 09744738 - Incorporated on 24 August 2015 
- SIMPSON LAND AND PROPERTY LIMITED- 10320803 - Incorporated on 9 August 2016 
- CHRIS SIMPSON DESIGNS LTD- 16438227 - Incorporated on 8 May 2025 
- SIMPSON RESEARCH LIMITED- 00839088 - Incorporated on 26 February 1965 
- SIMPSONHAUGH ARCHITECTS LIMITED- 02965414 - Incorporated on 6 September 1994 
- GRANT D C SIMPSON LTD.Active - Proposal to Strike off- 09963754 - Incorporated on 21 January 2016 
- SHAUN SIMPSON LTD- 10027672 - Incorporated on 26 February 2016 
- JAMES SIMPSON 1972 LTDActive - Proposal to Strike off- 12603110 - Incorporated on 14 May 2020 
- W & R SIMPSON LIMITEDDissolved- SC173353 - Incorporated on 11 March 1997 
- ALLAN SIMPSON LTD.- SC225257 - Incorporated on 13 November 2001