- M HART LTD- 11498798 - Incorporated on 3 August 2018 
- HART I.D. LTDActive - Proposal to Strike off- 10460843 - Incorporated on 3 November 2016 
- HART ASCOTDissolved- 07509553 - Dissolved on 5 June 2012 
- CONSTABLE HARTDissolved- 07763888 - Dissolved on 30 April 2013 
- A HART LTDActive - Proposal to Strike off- 04455744 - Incorporated on 6 June 2002 
- J C HART LTD- 12247570 - Incorporated on 7 October 2019 
- HART P S LTD- 16040959 - Incorporated on 25 October 2024 
- 2 HART'S LTD- 16381432 - Incorporated on 11 April 2025 
- W J HART LTD- 05911550 - Incorporated on 21 August 2006 
- C R HART LTDDisolved- SC580578 - Dissolved on 28 January 2025 
- A & A HART LTD- 11190110 - Incorporated on 6 February 2018 
- HART 1 LTDDisolved- 14939377 - Dissolved on 20 August 2024 
- SQRT3 LTDDisolved- 10658869 - Dissolved on 3 January 2023 
- GREEN TREES TRADING LIMITEDLiquidation- 01322816 - Incorporated on 25 July 1977 
- HART MAGNOLIAActive - Proposal to Strike off- 07859756 - Incorporated on 24 November 2011 
- HARTLEY AND HARTLEY LTDDisolved- 07954789 - Dissolved on 22 July 2025 
- HARTS NEWS LIMITEDActive - Proposal to Strike off- 06398225 - Incorporated on 15 October 2007 
- HART LIMITEDDissolved- 05233896 - Dissolved on 6 September 2013 
- HART GABLES- CE014563 - Incorporated on 5 July 2018 
- HARTY AND HARTY LIMITED- 07964070 - Incorporated on 24 February 2012