- IAN QUINN LTD- 08507907 - Incorporated on 29 April 2013 
- P QUINN & SON LTD- NI628069 - Incorporated on 28 November 2014 
- MAURICE RICE & SON LTDLiquidation- NI043077 - Incorporated on 29 April 2002 
- STUART MAURICE LTDActive - Proposal to Strike off- 10277821 - Incorporated on 14 July 2016 
- HAMILL'S SAUL LIMITED- NI643533 - Incorporated on 31 January 2017 
- QUINN ACCOUNTANCY SERVICES LIMITED- 15632861 - Incorporated on 10 April 2024 
- QUINNELL & CO- LP004619 - Incorporated on 20 April 1994 
- MAURICE VARNEY LTDLiquidation- 07186435 - Incorporated on 11 March 2010 
- MAURICE INVEST LTD- 15509471 - Incorporated on 21 February 2024 
- W. MAURICE & CO. LIMITED- 05990241 - Incorporated on 7 November 2006 
- SYDNEY MAURICE LTD- 13738830 - Incorporated on 11 November 2021 
- BJ QUINN & CO LTDActive - Proposal to Strike off- 09957077 - Incorporated on 18 January 2016 
- QUINN&COW LTD- 12424115 - Incorporated on 24 January 2020 
- J J QUINN & SON LTD- 07126752 - Incorporated on 15 January 2010 
- JOE QUINN LTDActive - Proposal to Strike off- 03454389 - Incorporated on 23 October 1997 
- QUINNCO LTDDisolved- 08681024 - Dissolved on 16 November 2021 
- QUINN & BELL LTDDissolved- SC368329 - Dissolved on 3 August 2012 
- QUINN TEPR LTD- 09390270 - Incorporated on 15 January 2015 
- QUINNFIT LTDDisolved- 14570367 - Dissolved on 29 April 2025 
- QUINNLUX LTDDisolved- 13833851 - Dissolved on 27 June 2023