- BRIAN AND BRIAN LTD- 10888249 - Incorporated on 28 July 2017 
- JG HOWARTH LTDDisolved- 13728421 - Dissolved on 23 January 2024 
- DM HOWARTH LTDDisolved- 13399349 - Dissolved on 13 February 2024 
- HOWARTH IT LTD- 07894561 - Incorporated on 3 January 2012 
- AP HOWARTH LTDDisolved- 13620788 - Dissolved on 11 February 2025 
- UK HOWARTH LTDDisolved- 13887420 - Dissolved on 6 February 2024 
- JP HOWARTH LTD- 14536421 - Incorporated on 12 December 2022 
- HOWARTH IP LTDDisolved- 14570524 - Dissolved on 26 March 2024 
- HOWARTH WESTHOLMActive - Proposal to Strike off- 07874307 - Incorporated on 7 December 2011 
- MR GARY NEGUS FINISHING FOREMAN LIMITEDActive - Proposal to Strike off- 12016113 - Incorporated on 24 May 2019 
- YX HOWARTH LTDActive - Proposal to Strike off- 14062476 - Incorporated on 22 April 2022 
- NR HOWARTH LTDDisolved- NI680517 - Dissolved on 18 April 2023 
- TZ HOWARTH LTD- 13953975 - Incorporated on 4 March 2022 
- THE HOWARTH FIC- 09276053 - Incorporated on 22 October 2014 
- M HOWARTH ANP LTD- 13676971 - Incorporated on 13 October 2021 
- HOWARTH LIMITED- 03480883 - Incorporated on 15 December 1997 
- MDL HOWARTH LTDActive - Proposal to Strike off- 07049543 - Incorporated on 20 October 2009 
- JEMJIAN LIMITEDDissolved- 06060252 - Dissolved on 6 August 2016 
- NIGHTSKY LTD- 10200226 - Incorporated on 26 May 2016 
- GARY LTD- 04848577 - Incorporated on 29 July 2003