- HOLYWOOD FRYER LTD.Active - Proposal to Strike off- NI668310 - Incorporated on 9 March 2020 - 50 Castle Street, Comber, BT23 5DZ 
- OUR CORNER STONE LTD- 08442683 - Incorporated on 13 March 2013 
- OCU (TRENCHLESS) LIMITED- 09388527 - Incorporated on 14 January 2015 
- QUINN BROS LTDDissolved- NI050988 - Dissolved on 8 July 2015 
- QUINNTEX LTD.Active - Proposal to Strike off- 11137871 - Incorporated on 8 January 2018 
- WING QUINN LTDDisolved- 14041342 - Dissolved on 19 September 2023 
- NOVA QUINN LTDDisolved- SC738317 - Dissolved on 4 June 2024 
- MANNOK BUILD LIMITED- NI013573 - Incorporated on 2 May 1979 
- QUINN SPIN LTD- 08104055 - Incorporated on 13 June 2012 
- QUINNIES LTDActive - Proposal to Strike off- 10336509 - Incorporated on 18 August 2016 
- LIZ CONNOR LTD- 12593655 - Incorporated on 11 May 2020 
- HUGO QUINN LTDDisolved- 12588429 - Dissolved on 8 October 2024 
- PAUL QUINN LTD.Disolved- NI673870 - Dissolved on 7 June 2022 
- MARK QUINN LTDDisolved- 14461881 - Dissolved on 17 June 2025 
- INDY QUINN LLP- OC440183 - Incorporated on 3 December 2021 
- QUINN & CO. OF UK LTD.- 14754731 - Incorporated on 24 March 2023 
- HALL & QUINN LTD- 15947922 - Incorporated on 10 September 2024 
- JON O'CONNOR LTDActive - Proposal to Strike off- 09611006 - Incorporated on 27 May 2015 
- DPS CONNOR LTDActive - Proposal to Strike off- 10480492 - Incorporated on 15 November 2016 
- CONNORS TM LTDDisolved- 12424387 - Dissolved on 27 July 2021