- HOWARTH HOLDINGS LIMITEDDisolved- 14712739 - Dissolved on 13 August 2024 
- HOWARTH BUILDERS LTD- 15319635 - Incorporated on 30 November 2023 
- ANTONY SERVICES LTD- 15295249 - Incorporated on 20 November 2023 
- ANTONY ROBERTSON LTDDisolved- 13151924 - Dissolved on 26 September 2023 
- HOWARTH DEVELOPMENTS LTD- 13022619 - Incorporated on 16 November 2020 
- HOWARTH HOSPITALITY LTD- 15826049 - Incorporated on 8 July 2024 
- LUKE HOWARTH LIMITED- 16211824 - Incorporated on 27 January 2025 
- JEFF HOWARTH LIMITED- 03792447 - Incorporated on 21 June 1999 
- HOWARTH LIFTING LTDDisolved- 09996780 - Dissolved on 10 May 2022 
- HOWARTH WHOLESALE LTDDisolved- 11494372 - Dissolved on 20 December 2021 
- HOWARTH WAINWRIGHT LTDDisolved- 12644914 - Dissolved on 19 July 2022 
- HOWARTH CONSTRUCTION LIMITED- 05073814 - Incorporated on 15 March 2004 
- HOWARTH JOINERY LTDDissolved- 08172096 - Dissolved on 18 March 2014 
- HOWARTH FLOORING LTD- 06778407 - Incorporated on 22 December 2008 
- HOWARTH SOLUTIONS LIMITEDDissolved- 07376940 - Dissolved on 26 February 2013 
- HOWARTH DAVIS LIMITEDLiquidation- 00963756 - Incorporated on 13 October 1969 
- HOWARTH ENTERPRISES LIMITEDActive - Proposal to Strike off- 08231918 - Incorporated on 27 September 2012 
- HENNESSY HOWARTH LIMITED- 09627850 - Incorporated on 8 June 2015 
- CARL HOWARTH LIMITED- 09714387 - Incorporated on 3 August 2015 
- HOWARTH ENTERPRISES LTDActive - Proposal to Strike off- NI633827 - Incorporated on 23 September 2015