- JO WELCH LTDDisolved- 13648890 - Dissolved on 21 March 2023 
- LW WELCH LTDDisolved- 13825067 - Dissolved on 6 February 2024 
- TM WELCH LTDDisolved- 14075293 - Dissolved on 30 January 2024 
- WELCHY LTDDisolved- 13561491 - Dissolved on 7 February 2023 
- WELCH ENT LTD- 14038967 - Incorporated on 11 April 2022 
- NP. WELCH & CO LTDDisolved- 13730951 - Dissolved on 22 April 2025 
- JOSHI & WELCH INTELLECTUAL PROPERTY LLP- OC320453 - Incorporated on 20 June 2006 
- WELCHCO LTDActive - Proposal to Strike off- 12637067 - Incorporated on 1 June 2020 
- MARK WELCH LTD- 06692747 - Incorporated on 9 September 2008 
- MARK WELCH 3621 LTDActive - Proposal to Strike off- 10113086 - Incorporated on 8 April 2016 
- WELCH LIMITED- 10613988 - Incorporated on 10 February 2017 
- WELCH HAMLIN- 07648463 - Incorporated on 26 May 2011 
- WELCH HALL LTDActive - Proposal to Strike off- 09018719 - Incorporated on 30 April 2014 
- DANE WELCH LTD- 16563007 - Incorporated on 7 July 2025 
- THE NATURAL STONE TILING COMPANY LTDActive - Proposal to Strike off- 08017984 - Incorporated on 3 April 2012 
- FRANK & FRANK LTDActive - Proposal to Strike off- 12371439 - Incorporated on 19 December 2019 
- MATT WELCH LTD- 09374051 - Incorporated on 5 January 2015 
- ANNA WELCH 7265 LTDActive - Proposal to Strike off- 10476120 - Incorporated on 14 November 2016 
- PETE WELCH LTD- 13541819 - Incorporated on 1 August 2021 
- M S WELCH TECH LTDDisolved- 13604776 - Dissolved on 28 February 2023