- TOM WEIR INNS LTDActive - Proposal to Strike off- 07803162 - Incorporated on 10 October 2011 
- PROVIE WEIR LTDActive - Proposal to Strike off- 08667982 - Incorporated on 29 August 2013 
- WEIRD WORLD LTDDisolved- 08664141 - Dissolved on 22 August 2023 
- WEIRD WELDS LTDActive - Proposal to Strike off- 12648900 - Incorporated on 5 June 2020 
- ROBERT WEIR LTD- SC669428 - Incorporated on 31 July 2020 
- A&D WEIR DESIGN LTDDisolved- SC573111 - Dissolved on 18 March 2025 
- AO WEIR LIMITEDActive - Proposal to Strike off- SC628847 - Incorporated on 29 April 2019 
- WEIRWORKS LTD.Disolved- SC678877 - Dissolved on 1 March 2022 
- WEIRDFROG LTDDisolved- 13049683 - Dissolved on 10 May 2022 
- WEIRD WAVES LTD- 14002103 - Incorporated on 25 March 2022 
- WEIRDSOFT LTD- 14288956 - Incorporated on 10 August 2022 
- WEIRD WOODS LTD- 15531002 - Incorporated on 28 February 2024 
- WEIR REALISATIONS LIMITEDDisolved- 05364203 - Dissolved on 12 February 2025 
- AZUR BUSINESS SOLUTIONS LTD.Active - Proposal to Strike off- SC063202 - Incorporated on 3 October 1977 
- CATHCART (1993) LIMITEDDissolved- 00733842 - Dissolved on 13 December 2011 
- STOTHERS (M. & E.) LIMITED- NI024313 - Incorporated on 3 April 1990 
- ADAM CONSULTING LIMITED- NI665326 - Incorporated on 23 October 2019 
- LOCK AND WEIR LTD- SC377133 - Incorporated on 20 April 2010 
- SOWTON WEIR LTD- 07563438 - Incorporated on 14 March 2011 
- ANDREW WEIR LTDActive - Proposal to Strike off- 08387116 - Incorporated on 4 February 2013