- HOWARTH ACCOUNTANTS LTDActive - Proposal to Strike off- 09623306 - Incorporated on 4 June 2015 
- TONY HOWARTH LIMITEDDisolved- 09361786 - Dissolved on 4 January 2022 
- HOWARTH VANS LIMITEDDissolved- 09444508 - Dissolved on 2 August 2016 
- DAVO HOWARTH LIMITEDActive - Proposal to Strike off- 09799571 - Incorporated on 29 September 2015 
- SENK HOWARTH LIMITEDActive - Proposal to Strike off- 11412509 - Incorporated on 13 June 2018 
- HOWARTH SERVICES LTD- 11932443 - Incorporated on 8 April 2019 
- HOWARTH HOSPITALITY LTD- 12182310 - Incorporated on 30 August 2019 
- JAMES HOWARTH LIMITEDActive - Proposal to Strike off- 11144682 - Incorporated on 11 January 2018 
- AQUAMASS (HOWARTH) LIMITEDActive - Proposal to Strike off- 11254393 - Incorporated on 14 March 2018 
- HOWARTH LOGISTICS LTDDisolved- 13975126 - Dissolved on 22 August 2023 
- HOWARTH GOODMAN LIMITED- 13170949 - Incorporated on 1 February 2021 
- WILSON HOWARTH LIMITED- 15078007 - Incorporated on 17 August 2023 
- HOWARTH STAYS LIMITED- 16483215 - Incorporated on 29 May 2025 
- HOWARTH FOODSERVICE LIMITEDDisolved- 00924560 - Dissolved on 6 May 2025 
- HOWARTH PACKAGING LIMITEDActive - Proposal to Strike off- 01021200 - Incorporated on 17 August 1971 
- HOWARTH MCSWAIN LIMITED- 04420688 - Incorporated on 19 April 2002 
- RICHARDSON HOWARTH LLPDissolved- OC314442 - Dissolved on 8 October 2019 
- HOWARTH INVESTMENTS LIMITED- 00830414 - Incorporated on 9 December 1964 
- ALAN HOWARTH LIMITED- 02218659 - Incorporated on 8 February 1988 
- HOWARTH HOTEL LIMITED- 06584564 - Incorporated on 6 May 2008