- QSC CONCRETE LTD.- 08857533 - Incorporated on 23 January 2014 
- IT BRAINS LTDDisolved- 15307843 - Dissolved on 29 April 2025 
- CONCRETE AND WAX LTD- 11341114 - Incorporated on 2 May 2018 
- BRAINS AND CHEEK LIMITEDDisolved- 07104866 - Dissolved on 29 April 2025 
- BRAINS AND GAMES LIMITED- 11560764 - Incorporated on 10 September 2018 
- BRAINS AND HAMMERS LIMITEDActive - Proposal to Strike off- 09895011 - Incorporated on 30 November 2015 
- BRAINS (UK) LTDDissolved- 08542069 - Dissolved on 13 January 2015 
- BI BRAINS LTD- 12549077 - Incorporated on 6 April 2020 
- NO BRAINS LTDActive - Proposal to Strike off- SC627486 - Incorporated on 12 April 2019 
- ANN-BRAINS LTDDissolved- 07395508 - Dissolved on 15 May 2012 
- BID BRAINS LTDDisolved- 12964050 - Dissolved on 15 February 2022 
- BRAINSET LTDDisolved- 13529638 - Dissolved on 24 January 2023 
- BRAINS AND HUNCH LIMITED- 06489743 - Incorporated on 31 January 2008 
- CONCRETE AND CLAY LTD- 07226529 - Incorporated on 17 April 2010 
- BRAINS 2 LLP- OC341003 - Incorporated on 23 October 2008 
- THE BRAINS- CE038775 
- K & M SKIP AND CONCRETE LTD- 10859944 - Incorporated on 11 July 2017 
- BRAINS HUB LTD- 14559907 - Incorporated on 28 December 2022 - Unit 8, Dock Offices,, Surrey Quays Rd, SE16 2XU 
- BRAINSAT LTD- 15728786 - Incorporated on 18 May 2024 
- BRAINS AND CHEEK (LONDON) LLP- OC363455 - Incorporated on 5 April 2011