- JUSTIN GRAYDisolved- 14150737 - Dissolved on 10 September 2024 
- JEN QUIRK LIMITEDActive - Proposal to Strike off- 10790051 - Incorporated on 25 May 2017 
- SIMON QUIRK LIMITEDActive - Proposal to Strike off- 11723844 - Incorporated on 12 December 2018 
- INNER QUIRK LTDActive - Proposal to Strike off- 12473154 - Incorporated on 20 February 2020 
- JOANNE QUIRK LTDDisolved- 12419314 - Dissolved on 27 July 2021 
- GENUINE QUIRK LTD- SC695572 - Incorporated on 13 April 2021 
- ANTHONY QUIRK LTD- 14312701 - Incorporated on 23 August 2022 
- QUIRK AUDIO LTD.- 13730350 - Incorporated on 8 November 2021 
- JONES & QUIRK LIMITED- 16114738 - Incorporated on 3 December 2024 
- QUIRKY BIRD LTDDisolved- 08680748 - Dissolved on 21 June 2022 
- QUIRKY FROG LTD- 12070806 - Incorporated on 26 June 2019 
- C.QUIRK LIMITED- 15226902 - Incorporated on 22 October 2023 
- QUIRKY COVE LTD- 15930638 - Incorporated on 2 September 2024 
- QUIRKY HIRE LTD- 16095275 - Incorporated on 22 November 2024 
- JUSTINA LTDActive - Proposal to Strike off- 09825108 - Incorporated on 15 October 2015 
- J&I JUSTINA LTDDisolved- 12022794 - Dissolved on 1 August 2023 
- JUSTIN CAMPBELL- 10802079 - Incorporated on 5 June 2017 
- MR PAUL DAVID CHISHOLM LIMITEDDisolved- 08471885 - Dissolved on 2 July 2024 
- B.A. JUSTINE LTD- 09473805 - Incorporated on 5 March 2015 
- CLAIRE QUIRK LTDDisolved- 13084955 - Dissolved on 24 May 2022