- EXOTICA PROPERTIES LIMITEDActive - Proposal to Strike off- 06084155 - Incorporated on 6 February 2007 
- HART PLUMBING & ELECTRICAL LIMITED- 05994181 - Incorporated on 9 November 2006 
- J H HART & CO LLP- OC360892 - Incorporated on 14 January 2011 
- BH HART LTD- 09693850 - Incorporated on 20 July 2015 
- LP HART LTD- 08523790 - Incorporated on 10 May 2013 
- HART PA LTDActive - Proposal to Strike off- 11245379 - Incorporated on 9 March 2018 
- HART GT LTD- 11016512 - Incorporated on 17 October 2017 
- C.M.HART UK LTDDisolved- 11622952 - Dissolved on 19 July 2022 
- KJ HART LTDActive - Proposal to Strike off- 14019928 - Incorporated on 1 April 2022 
- LJ & HART LTDActive - Proposal to Strike off- 14352841 - Incorporated on 13 September 2022 
- HART HR LTD- 15927867 - Incorporated on 31 August 2024 
- PLOUGH HYKEHAM LIMITEDActive - Proposal to Strike off- 08413889 - Incorporated on 21 February 2013 
- ROXBOROUGH REALTY LTD- NI620335 - Incorporated on 10 September 2013 
- CARGO CRAFTERS LIMITED- 12655719 - Incorporated on 9 June 2020 
- I.M.HARTE LTDDisolved- 11678498 - Dissolved on 24 January 2023 
- SA HART LTDDisolved- 10119621 - Dissolved on 12 December 2023 
- HARTS 4 LLPActive - Proposal to Strike off- OC374306 - Incorporated on 13 April 2012 
- JW HART LTDDissolved- 09704811 - Dissolved on 6 July 2021 
- HART CLUB C.I.C.Active - Proposal to Strike off- 11054791 - Incorporated on 8 November 2017 
- CB HART LTDActive - Proposal to Strike off- 13863467 - Incorporated on 21 January 2022