- ELLIOTT HARMAN LIMITED- 07797431 - Incorporated on 4 October 2011 
- HARMAN & FITZPATRICK LIMITEDActive - Proposal to Strike off- 00498346 - Incorporated on 9 August 1951 
- HARMAN ENGINEERS LIMITEDDissolved- 06463556 - Dissolved on 3 June 2014 
- HARMAN HOMES LIMITED- 06347072 - Incorporated on 20 August 2007 
- JASMINE HARMAN LIMITED- 05929314 - Incorporated on 8 September 2006 
- HARMAN ALLIANCE LLPDisolved- OC387645 - Dissolved on 30 November 2021 
- PETER HARMAN LIMITEDDisolved- 08539831 - Dissolved on 15 April 2025 
- HARMAN HOLLAND LIMITED- 08658135 - Incorporated on 20 August 2013 
- HARMAN VENDING LIMITEDActive - Proposal to Strike off- 09793775 - Incorporated on 24 September 2015 
- HARMAN HAIRDRESSING LIMITED- 11571935 - Incorporated on 17 September 2018 
- HARMAN BRUCE LIMITED- 10102677 - Incorporated on 5 April 2016 
- HARMAN MARKETING LIMITED- 12057236 - Incorporated on 18 June 2019 
- HARMAN LANDSCAPES LTDDissolved- 04065628 - Dissolved on 27 April 2010 
- HARMAN CONCRETING LIMITEDDisolved- 15196929 - Dissolved on 18 March 2025 
- HARMAN GRAPHICS LTD- 14753096 - Incorporated on 23 March 2023 
- HARMAN HOLIDAYS LTD- 15926697 - Incorporated on 30 August 2024 
- HARMAN MARTIN LIMITED- 16162802 - Incorporated on 3 January 2025 
- HARMAN LONDON LIMITED- 11600192 - Incorporated on 2 October 2018 
- SARAH HARMAN LIMITEDActive - Proposal to Strike off- 10062103 - Incorporated on 14 March 2016 
- HARMAN RECRUITMENT LTD- 12038322 - Incorporated on 7 June 2019