- DUNCANMC 123 LTD- 12083731 - Incorporated on 3 July 2019 
- TEASEL DUNCANActive - Proposal to Strike off- 07625451 - Incorporated on 6 May 2011 
- DUNCAN TABORSActive - Proposal to Strike off- 07630110 - Incorporated on 11 May 2011 
- DUNCAN VANTAGE- 16495252 - Incorporated on 4 June 2025 
- ROBERT DUNCAN- SL002970 - Incorporated on 12 February 1997 
- IAN GRAY LIMITED- 07592938 - Incorporated on 5 April 2011 
- IMPERIUM PRR LIMITEDDisolved- 14718818 - Dissolved on 22 April 2025 
- THE MR AND MRS EMPIRE LTD- 15603811 - Incorporated on 29 March 2024 
- RON DUNCAN LLP- SO302670 - Incorporated on 28 January 2010 
- DUNCANOS LTDLiquidation- SC684185 - Incorporated on 21 December 2020 
- DUNCAN'S CAR LTD- 13887781 - Incorporated on 2 February 2022 
- CLH SERVICES LIMITEDActive - Proposal to Strike off- SC251869 - Incorporated on 26 June 2003 
- DUNCAN CLARK LIMITEDDisolved- 02081256 - Dissolved on 21 July 2022 
- MR & MRS NIK LTD- 09626652 - Incorporated on 6 June 2015 
- MR AND MRS A LTDActive - Proposal to Strike off- 11538245 - Incorporated on 28 August 2018 
- IANA LTDActive - Proposal to Strike off- 11849119 - Incorporated on 27 February 2019 
- IANB LTDDisolved- 10453547 - Dissolved on 7 February 2023 
- IAN&LD LTD- SC674753 - Incorporated on 18 September 2020 
- IANN LTDDisolved- 13886116 - Dissolved on 3 May 2022 
- IANA & IANA SERVICES LTDDissolved- 08520916 - Dissolved on 16 July 2019