- WEIRCONSULTINGUK LTD- 12284689 - Incorporated on 28 October 2019 
- WEIRD STICKS CIC- 14076275 - Incorporated on 28 April 2022 
- WEIR TRAFFIC LTD- 15900656 - Incorporated on 16 August 2024 
- THE WEIRSIDE LTD- 16390322 - Incorporated on 15 April 2025 
- COOKS PROPERTY SERVICES LTDActive - Proposal to Strike off- 06797456 - Incorporated on 21 January 2009 
- NAHTANOJ LTDDisolved- 05099022 - Dissolved on 12 October 2021 
- KILBURY WEIR LTDActive - Proposal to Strike off- 07257117 - Incorporated on 18 May 2010 
- WEIRSTREAM LTDDisolved- 09691940 - Dissolved on 27 December 2022 
- WEIR MOORE ECO LTDDisolved- 12013897 - Dissolved on 31 January 2023 
- WEIRDSTOCK LTD- 14193695 - Incorporated on 24 June 2022 
- WEIR INVEST UK LTD- 14880964 - Incorporated on 19 May 2023 
- WEIRONGKIANG LTDDisolved- 14903514 - Dissolved on 24 December 2024 
- WEIRSOLUTIONS 2024 LTD- SC824389 - Incorporated on 1 October 2024 
- WEIRDWORDS CIC- 16019663 - Incorporated on 15 October 2024 
- WEIR FORTUNE LTD- SC837213 - Incorporated on 10 February 2025 
- AUTOQUEST CONTRACTS LIMITED- 01541810 - Incorporated on 27 January 1981 
- IRON STAG LTD- 15126224 - Incorporated on 9 September 2023 
- WEIR LAW LIMITED- SC636245 - Incorporated on 16 July 2019 
- G WEIR & SON LIMITED- NI045282 - Incorporated on 28 January 2003 
- MADISON WEIR LTD- 08642611 - Incorporated on 8 August 2013