- J DUGGAN LTDActive - Proposal to Strike off- 10199643 - Incorporated on 25 May 2016 
- S P DUGGAN LTD- 11857779 - Incorporated on 4 March 2019 
- C J DUGGAN LTD- 04800983 - Incorporated on 17 June 2003 
- D DUGGAN LTD- 11688510 - Incorporated on 21 November 2018 
- D G DUGGAN LTDActive - Proposal to Strike off- 11108342 - Incorporated on 12 December 2017 
- IX DUGGAN LTDDisolved- 13674032 - Dissolved on 19 March 2024 
- BU DUGGAN LTDDisolved- 13762998 - Dissolved on 29 April 2025 
- SM DUGGAN LTDActive - Proposal to Strike off- 13775045 - Incorporated on 1 December 2021 
- OZ DUGGAN LTDDisolved- 14005086 - Dissolved on 23 January 2024 
- WC DUGGAN LTDDisolved- 13777458 - Dissolved on 14 May 2024 
- AI DUGGAN LTDActive - Proposal to Strike off- 13939986 - Incorporated on 25 February 2022 
- ZF DUGGAN LTDActive - Proposal to Strike off- 13571510 - Incorporated on 17 August 2021 
- RCL DUGGAN LTDDisolved- 11980222 - Dissolved on 18 July 2023 
- JTM DUGGAN LTDDissolved- 11049222 - Dissolved on 22 October 2019 
- JAKE DUGGAN LTD- 10033809 - Incorporated on 1 March 2016 
- JOE DUGGAN LTD- 09820377 - Incorporated on 12 October 2015 
- COSI DEVELOPMENTS LIMITED- 10941099 - Incorporated on 31 August 2017 
- LMD BUILDING LTD- 09420862 - Incorporated on 4 February 2015 
- JAKE DUGGAN LTD- 13702532 - Incorporated on 25 October 2021 
- DUGGAN LIMITED- 15696131 - Incorporated on 30 April 2024