- OURD LTD- 12234399 - Incorporated on 30 September 2019 
- SS DUNCAN LTD- SC398701 - Incorporated on 3 May 2011 
- MP DUNCAN LTDActive - Proposal to Strike off- 11438154 - Incorporated on 28 June 2018 
- MR MR LTDActive - Proposal to Strike off- 15533685 - Incorporated on 1 March 2024 
- MDL GATESHEAD LTDDisolved- 14711197 - Dissolved on 22 July 2025 
- DUNCAN RUGS LIMITEDDisolved- NI036656 - Dissolved on 11 May 2025 
- EJ & DUNCAN LTDDisolved- 11474078 - Dissolved on 19 September 2023 
- DT DUNCAN LTDActive - Proposal to Strike off- 10291788 - Incorporated on 22 July 2016 
- JJ DUNCAN LTDDisolved- 11834394 - Dissolved on 15 October 2024 
- DR DUNCAN LTDActive - Proposal to Strike off- 11086211 - Incorporated on 28 November 2017 
- JR DUNCAN LTDActive - Proposal to Strike off- 11181374 - Incorporated on 1 February 2018 
- ZS DUNCAN LTDDisolved- 13622971 - Dissolved on 18 July 2023 
- DU DUNCAN LTDDisolved- 13745523 - Dissolved on 18 July 2023 
- EZ DUNCAN LTDDisolved- 13877673 - Dissolved on 16 January 2024 
- ON DUNCAN LTDDisolved- 13887270 - Dissolved on 1 July 2025 
- IAN 1966 LTD- 06176574 - Incorporated on 21 March 2007 
- IAN P LTDDisolved- 08450580 - Dissolved on 17 June 2025 
- GE DUNCAN LTD- SC510491 - Incorporated on 9 July 2015 
- KH DUNCAN LTDDisolved- 11481434 - Dissolved on 21 January 2025 
- DUNCAN NZ LTDActive - Proposal to Strike off- 10293552 - Incorporated on 25 July 2016