- DUNCAN LEWIS LLPDissolved- OC381543 - Dissolved on 21 October 2014 
- KEVIN DUNCAN LTD- SC658001 - Incorporated on 23 March 2020 
- DUNCAN REGAN LTDLiquidation- 10255033 - Incorporated on 28 June 2016 
- DUNCAN & GROVE LTD- 09715460 - Incorporated on 3 August 2015 
- DUNCAN SMITH 6410 LTDActive - Proposal to Strike off- 10331501 - Incorporated on 16 August 2016 
- J DUNCAN LIMITEDDisolved- 10384858 - Dissolved on 5 July 2023 
- DUNCAN 77777 LIMITEDActive - Proposal to Strike off- 10699699 - Incorporated on 30 March 2017 
- DUNCAN GROUP LTDDisolved- 12454164 - Dissolved on 17 August 2021 
- DUNCAN GROUP LTDDisolved- 14060577 - Dissolved on 23 April 2024 
- J DUNCAN LIMITED- SC780725 - Incorporated on 29 August 2023 
- ULTRASONICS FLIGHTCASES LIMITED- 09040195 - Incorporated on 14 May 2014 
- JSM CONSULTANCY SERVICES LIMITEDLiquidation- 09440345 - Incorporated on 16 February 2015 
- MISSKIE LIMITEDDisolved- 14925466 - Dissolved on 14 January 2025 
- IANIRO INTERNATIONAL LTDDissolved- 04990291 - Dissolved on 6 September 2018 
- IAIN CLIFF LTDActive - Proposal to Strike off- 10859660 - Incorporated on 11 July 2017 
- GJ SUPPORT SERVICES LIMITEDDissolved- 04396627 - Dissolved on 13 August 2014 
- ORIENT CLOSE NURSERY LIMITED- 07014396 - Incorporated on 9 September 2009 
- GRIFFITH MEMORIALS LIMITED- 07440738 - Incorporated on 16 November 2010 - Cemetery Road, Porth, CF39 0BL 
- HUNTER LEGAL LTD- 09248654 - Incorporated on 3 October 2014 
- W F DUNCAN LIMITEDDissolved- SC254378 - Dissolved on 7 May 2010