- DUFFY LABELS LIMITEDLiquidation- 06556177 - Incorporated on 5 April 2008 
- GEORGE DUFFY LIMITEDActive - Proposal to Strike off- 08229655 - Incorporated on 26 September 2012 
- JOSEPH DUFFY LIMITEDActive - Proposal to Strike off- 08825264 - Incorporated on 23 December 2013 
- DUFFY MEDIA LIMITEDActive - Proposal to Strike off- 09358670 - Incorporated on 17 December 2014 
- DUFFY PROPERTIES LTD- 09457616 - Incorporated on 25 February 2015 
- DUFFY ENGINEERING LTDActive - Proposal to Strike off- NI630198 - Incorporated on 24 March 2015 
- MAURICE DUFFY LIMITED- 11240929 - Incorporated on 7 March 2018 
- DUFFY DESIGN LIMITED- 09719484 - Incorporated on 5 August 2015 
- DUFFY MOTORSPORT LTDDisolved- 10752696 - Dissolved on 4 October 2022 
- DUFFY COMPOSITES LIMITEDActive - Proposal to Strike off- 10345652 - Incorporated on 25 August 2016 
- ANNETTE DUFFY LIMITEDActive - Proposal to Strike off- 10529938 - Incorporated on 16 December 2016 
- KATIE DUFFY LIMITED- 14835976 - Incorporated on 1 May 2023 
- DUFFY GRIPS LIMITED- 15417076 - Incorporated on 16 January 2024 
- DUFFY CONSULTING LTD- 15271803 - Incorporated on 9 November 2023 
- DUFFY DIAGNOSTICS LTD- SC826860 - Incorporated on 24 October 2024 
- MR & MRS TANG LTD- 15171097 - Incorporated on 28 September 2023 
- PAGE ALEXANDERActive - Proposal to Strike off- 07839281 - Incorporated on 8 November 2011 
- ALAN D & CO LTD- 15407099 - Incorporated on 11 January 2024 
- ALAND LTDActive - Proposal to Strike off- 06628391 - Incorporated on 24 June 2008 
- ALAN PL LTDDissolved- 10208669 - Dissolved on 5 November 2019