- A.A. SIMPSON LTD- 05972711 - Incorporated on 20 October 2006 
- K & E SIMPSON LTDActive - Proposal to Strike off- 07730286 - Incorporated on 5 August 2011 
- D M SIMPSON LTDActive - Proposal to Strike off- SC373573 - Incorporated on 24 February 2010 
- N SIMPSON LTDActive - Proposal to Strike off- SC432359 - Incorporated on 11 September 2012 
- B A SIMPSON LTDActive - Proposal to Strike off- 09061383 - Incorporated on 29 May 2014 
- RODERICK JAMES ARCHITECTS LLP- OC303006 - Incorporated on 17 September 2002 
- HUGH RODERICK ASSOCIATES LIMITEDActive - Proposal to Strike off- 07626356 - Incorporated on 9 May 2011 
- RODERICK PRYDE CONSULTING LIMITED- SC510124 - Incorporated on 6 July 2015 
- RODERICK PUGH MARKETING LIMITEDLiquidation- 08299973 - Incorporated on 20 November 2012 
- RODERICK GRAFTON CONSULTING LIMITED- 10738085 - Incorporated on 24 April 2017 
- RODERICK PROPERTY CONSULTANCY LTDActive - Proposal to Strike off- 11075816 - Incorporated on 22 November 2017 
- A B SIMPSON LTDDissolved- 06038309 - Dissolved on 31 January 2012 
- ROB J SIMPSONDisolved- 12180100 - Dissolved on 21 February 2023 
- B & J SIMPSON LTD- 12259994 - Incorporated on 14 October 2019 
- D.S.SIMPSON LTD- SC347272 - Incorporated on 19 August 2008 
- J SIMPSON LTD.- SC350018 - Incorporated on 16 October 2008 
- P J SIMPSON LTDDissolved- 09101042 - Dissolved on 17 December 2019 
- R SIMPSON LTD- 09161921 - Incorporated on 5 August 2014 
- M SIMPSON LTD- 08816961 - Incorporated on 16 December 2013 
- J G SIMPSON LTDDisolved- 13484348 - Dissolved on 27 December 2022