- JICK JACK LTDDissolved- 07411096 - Dissolved on 29 January 2019 
- MR. JACK KELLY- NI605369 
- JACK RYAN LTD- NI052058 - Incorporated on 14 October 2004 
- JACK SEAR LTDActive - Proposal to Strike off- 05326352 - Incorporated on 7 January 2005 
- K JACKSON LTDActive - Proposal to Strike off- 06103293 - Incorporated on 14 February 2007 
- J.M.F JACKSON LTDActive - Proposal to Strike off- 09146538 - Incorporated on 24 July 2014 
- JACKS BAR LTDDisolved- 08698713 - Dissolved on 27 June 2023 
- JACK'S BARN LTDDissolved- 08779163 - Dissolved on 5 January 2016 
- LILY & JACK'S LTD- 08902106 - Incorporated on 19 February 2014 
- JACKPAN LTD- 09583738 - Incorporated on 11 May 2015 
- JACK&SAFI'S LTDDissolved- 09667086 - Dissolved on 11 October 2016 
- A&M JACKSON LTDDissolved- 08292832 - Dissolved on 10 February 2015 
- JACK WOLF LTDDisolved- 08297442 - Dissolved on 3 May 2022 
- JACKLIN LTDDisolved- 12615395 - Dissolved on 26 October 2021 
- PONY JACK LTD- 12799902 - Incorporated on 7 August 2020 
- JACK DEAN LTDActive - Proposal to Strike off- 10926388 - Incorporated on 22 August 2017 
- J&S JACKSON LTDActive - Proposal to Strike off- 11356877 - Incorporated on 11 May 2018 
- JACK & CO. INC LTDActive - Proposal to Strike off- 11440903 - Incorporated on 29 June 2018 
- JACK BIRD LTD- 11766123 - Incorporated on 14 January 2019 
- S M JACKSON LTD- SC634452 - Incorporated on 26 June 2019