- VELOCITY ELECTRICAL SURREY LTD- 13064923 - Incorporated on 6 December 2020 
- G S DUNCAN LTD.- SC253809 - Incorporated on 5 August 2003 
- P J DUNCAN LTDDissolved- 06332194 - Dissolved on 28 October 2014 
- G A DUNCAN LTD- SC558621 - Incorporated on 24 February 2017 
- R.J DUNCAN LTD- 11177731 - Incorporated on 30 January 2018 
- C&G DUNCAN LTD- 12970681 - Incorporated on 23 October 2020 
- T J DUNCAN LTD- 13181341 - Incorporated on 5 February 2021 
- A&P DUNCAN LTD- 14045090 - Incorporated on 13 April 2022 
- A & D DUNCAN LTDDisolved- 06238398 - Dissolved on 11 October 2022 
- DUNCAN M LTD- SC037178 - Incorporated on 18 January 1962 
- DUNCAN 1000 LTDActive - Proposal to Strike off- 08738680 - Incorporated on 18 October 2013 
- P & J DUNCAN LTDDissolved- 09292810 - Dissolved on 6 August 2019 
- DUNCAN 1500 LTD- 12193451 - Incorporated on 6 September 2019 
- ITDAAS LTD- 12931534 - Incorporated on 6 October 2020 
- MR.MR. LTDDisolved- 14252327 - Dissolved on 5 December 2023 
- MR MR2 LTD- 11218539 - Incorporated on 21 February 2018 
- MR & MR LTD- 16489396 - Incorporated on 2 June 2025 
- BLAINEY ANALYTICS LIMITED- 16087034 - Incorporated on 18 November 2024 
- BLAINES BUILDERS LIMITED- 07710984 - Incorporated on 19 July 2011 
- SS DUNCAN LTD- SC398701 - Incorporated on 3 May 2011