- LUCY JACK LTDDisolved- 07887558 - Dissolved on 15 February 2022 
- JACKTEL LTD- 05087487 - Incorporated on 29 March 2004 
- JACKSYM LTDDisolved- 03069031 - Dissolved on 26 October 2021 
- JACK KAY & SONS- SL002203 - Incorporated on 28 May 1993 
- JACK KENT LTD.Active - Proposal to Strike off- 09304501 - Incorporated on 11 November 2014 
- S & J JACKSON LTDDisolved- 11570656 - Dissolved on 2 May 2023 
- JACKSAL LTD- 11687638 - Incorporated on 20 November 2018 
- JACK-*EDEN LTDDisolved- 12520077 - Dissolved on 26 December 2023 
- B JACKSON LTDActive - Proposal to Strike off- 12569050 - Incorporated on 22 April 2020 
- MIKI & JACK LTDDisolved- 12622941 - Dissolved on 12 July 2022 
- JACK'S PACK LTD- 12588846 - Incorporated on 6 May 2020 
- JACK CARS LTDDisolved- 10148679 - Dissolved on 11 January 2022 
- FIERY JACKS C.I.C.- 13342079 - Incorporated on 19 April 2021 
- JACK LEON LTDActive - Proposal to Strike off- 09754235 - Incorporated on 28 August 2015 
- JACK & JUNE LTDActive - Proposal to Strike off- 09729764 - Incorporated on 12 August 2015 
- ARAN JACK LTDDisolved- 09801307 - Dissolved on 20 July 2021 
- A&S JACKSON LTDDisolved- 11900543 - Dissolved on 10 August 2021 
- JACK-TSAO LTDDisolved- 09897053 - Dissolved on 2 October 2024 
- R T JACKSON LTD- 10051420 - Incorporated on 9 March 2016 
- A JACKSON 7548 LTDActive - Proposal to Strike off- 10526328 - Incorporated on 15 December 2016