- HARMAN K'S LTD- 13273226 - Incorporated on 17 March 2021 
- NINE TWO FIVE SILVER LIMITED- 04191967 - Incorporated on 2 April 2001 
- HARMAN & J LTDActive - Proposal to Strike off- 09697305 - Incorporated on 22 July 2015 
- HARMAN8 LTDDisolved- 12704565 - Dissolved on 2 November 2021 
- HARMAN TM LTDDisolved- 12546288 - Dissolved on 10 August 2021 
- GN HARMAN LTDDisolved- 13734325 - Dissolved on 2 July 2024 
- AE HARMAN LTDDisolved- 13760611 - Dissolved on 29 April 2025 
- HARMANY LTD- 15236979 - Incorporated on 25 October 2023 
- HARMONY CASTING LTD- 13957998 - Incorporated on 5 March 2022 
- HARMAN TV LTDDisolved- 12211220 - Dissolved on 13 December 2022 
- HS HARMAN LTD- 12688556 - Incorporated on 22 June 2020 
- NX HARMAN LTDDisolved- 13550301 - Dissolved on 15 August 2023 
- HARMANY LTDActive - Proposal to Strike off- 09779497 - Incorporated on 16 September 2015 
- UJ HARMAN LTDDisolved- 13788437 - Dissolved on 2 April 2024 
- PEGREX MEDICAL LIMITED- 03890791 - Incorporated on 8 December 1999 
- T&S WISDOM UK LTD- 11445090 - Incorporated on 3 July 2018 
- IJ HARMAN LTDDisolved- 13484376 - Dissolved on 27 December 2022 
- AL HARMAN LTDActive - Proposal to Strike off- SC710144 - Incorporated on 22 September 2021 
- MU HARMAN LTDDisolved- 13976172 - Dissolved on 15 August 2023 
- HARMANO LTD- 16513573 - Incorporated on 12 June 2025