- 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 
- EDWARD JOHNSON (OTLEY) LIMITED- 00812351 - Incorporated on 13 July 1964 
- HOWARTH WESTHOLMActive - Proposal to Strike off- 07874307 - Incorporated on 7 December 2011 
- JOHNNY EDWARDS KERB-LAYING LTD- 11039907 - Incorporated on 31 October 2017 
- EDWARD & EDWARD LTD- 10777958 - Incorporated on 18 May 2017 
- MR NEVILLE ALPHONSO JOHNSON & MRS JULIE LYNN DOLAN (THE ANVIL PLACE) WALMLEY UK LIMITEDActive - Proposal to Strike off- 08021904 - Incorporated on 5 April 2012 
- 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 
- BELLWAY DEERS LEAP (BUXTON PLOT 8 AND 38 SUTTON COLDFIELD) UK PLCActive - Proposal to Strike off- 07255721 - Incorporated on 17 May 2010 
- 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 
- EDWARD JOHNS SANITARY LIMITED- SC668707 - Incorporated on 24 July 2020 
- MDL HOWARTH LTDActive - Proposal to Strike off- 07049543 - Incorporated on 20 October 2009