- DUNCAN NZ LTDActive - Proposal to Strike off- 10293552 - Incorporated on 25 July 2016 
- DUNCAN ST LTD- 13897714 - Incorporated on 7 February 2022 
- CK DUNCAN LTDDisolved- NI681472 - Dissolved on 21 March 2023 
- LBC REPAIR LTDLiquidation- 08492839 - Incorporated on 17 April 2013 
- HESTIA DEVELOPMENTS LIMITED- 13436045 - Incorporated on 3 June 2021 
- IVOR JONES ENGINEERING LIMITEDDisolved- 00945239 - Dissolved on 15 April 2025 
- MR&MRS B'S LTDDissolved- 10677155 - Dissolved on 20 August 2019 
- MR&MRS LTDActive - Proposal to Strike off- 12389034 - Incorporated on 7 January 2020 
- TAUDA LTDDisolved- 12020390 - Dissolved on 28 June 2022 
- WP DUNCAN LTDActive - Proposal to Strike off- 08106759 - Incorporated on 15 June 2012 
- JK DUNCAN LTDActive - Proposal to Strike off- SC390960 - Incorporated on 5 January 2011 
- SM DUNCAN LTDDisolved- 13899927 - Dissolved on 8 July 2025 
- YY DUNCAN LTDDisolved- 13709763 - Dissolved on 2 April 2024 
- ES DUNCAN LTDActive - Proposal to Strike off- 14058949 - Incorporated on 21 April 2022 
- PJ & DUNCAN LTD- 15799364 - Incorporated on 24 June 2024 
- DLP DERIVATIVES LLPActive - Proposal to Strike off- OC354152 - Incorporated on 15 April 2010 
- THB JOHNSTONE LTD- SC529591 - Incorporated on 14 March 2016 
- MR & MRS O LTD.Active - Proposal to Strike off- SC217464 - Incorporated on 29 March 2001 
- MR & MRS W LTD- 08480767 - Incorporated on 9 April 2013 
- MR&MRS LTDActive - Proposal to Strike off- 10922002 - Incorporated on 18 August 2017