- QUIRK BARS LTDActive - Proposal to Strike off- 10362099 - Incorporated on 7 September 2016 
- QUIRK & BEAD LTDActive - Proposal to Strike off- 11167818 - Incorporated on 24 January 2018 
- QUIRK HOMES LIMITED- 13822719 - Incorporated on 30 December 2021 
- QUIRK SHARK LIMITEDDisolved- 15224547 - Dissolved on 25 March 2025 
- QUIRK GROUP LTD- 16382659 - Incorporated on 11 April 2025 
- QUIRKY AF LTD- 15048012 - Incorporated on 3 August 2023 
- QUIRKEX LTD- 15353723 - Incorporated on 15 December 2023 - 54 City Road, Liverpool 
- METISMOS LTD- 11022949 - Incorporated on 20 October 2017 
- QUIRKSY LTD- 15933551 - Incorporated on 3 September 2024 
- QUIRK CONSULTING LTDActive - Proposal to Strike off- 09069650 - Incorporated on 4 June 2014 
- QUIRK MUSIC LIMITED- 10102334 - Incorporated on 4 April 2016 
- SHIRLEY-QUIRK CYFYNGEDIGActive - Proposal to Strike off- 10280356 - Incorporated on 15 July 2016 
- QUIRK & FLEUR LIMITEDActive - Proposal to Strike off- 09792837 - Incorporated on 24 September 2015 
- QUIRK CARDS LIMITEDActive - Proposal to Strike off- 09817652 - Incorporated on 9 October 2015 
- QUIRK BIT LIMITEDDisolved- 12295363 - Dissolved on 1 February 2022 
- QUIRK & PARTNERS LTD- 14311411 - Incorporated on 22 August 2022 
- QUIRK COPYWRITING LIMITED- 14778336 - Incorporated on 4 April 2023 
- QUIRK GLASGOW LTDDisolved- SC747020 - Dissolved on 3 September 2024 
- QUIRK & SPLENDOUR LTD- 15903470 - Incorporated on 19 August 2024 
- ZENITH QUIRK LTD- 16567447 - Incorporated on 8 July 2025