- JACK & CO LTD- 09159200 - Incorporated on 4 August 2014 
- DB JACK LTDActive - Proposal to Strike off- SC539471 - Incorporated on 4 July 2016 
- JACKK LTDActive - Proposal to Strike off- 10747474 - Incorporated on 2 May 2017 
- JS JACK LTD- 11083075 - Incorporated on 27 November 2017 
- D. M. JACKSONclosed- BR017078 - Incorporated on 6 April 2014 
- TW JACK LLP- OC438094 - Incorporated on 28 June 2021 
- JACKY1 LTDDisolved- 14440901 - Dissolved on 9 April 2024 
- TA JACK LTD- SC815536 - Incorporated on 4 July 2024 
- JACKY1 LTDDisolved- 13085235 - Dissolved on 24 May 2022 
- JACKO 24/7 LTD.- SC337789 - Incorporated on 13 February 2008 
- MR JACK LTDActive - Proposal to Strike off- 09519497 - Incorporated on 31 March 2015 
- JACKDAW- LP004403 - Incorporated on 30 April 1993 
- JACK OH LTDActive - Proposal to Strike off- 09378686 - Incorporated on 8 January 2015 
- JACKS001 LTDLiquidation- 12790661 - Incorporated on 4 August 2020 
- PF JACK LTDDisolved- 12617038 - Dissolved on 5 July 2022 
- DR JACK LTDDisolved- 12408910 - Dissolved on 25 March 2025 
- JACK&RS LTD- 11030304 - Incorporated on 25 October 2017 
- JACK MJ LTDDisolved- 14232727 - Dissolved on 19 December 2023 
- JACKS 003 LTDDisolved- 13590411 - Dissolved on 9 January 2024 
- JACK E TM LTDDisolved- 15806339 - Dissolved on 22 July 2025