- BRAINS PERSPECTIVE LTDDisolved- 12968712 - Dissolved on 29 March 2022 
- BRAINS BIOFUELS LTDActive - Proposal to Strike off- 14645141 - Incorporated on 7 February 2023 
- BRAINS MARKETING LTDDisolved- 15180361 - Dissolved on 11 March 2025 
- BRAINS VISUALS LTD- 16341958 - Incorporated on 25 March 2025 
- BRAINS AND BANGERS INNOVATORS LIMITEDDisolved- 13355244 - Dissolved on 4 October 2022 
- COPING STONES UK LIMITED- 09506858 - Incorporated on 24 March 2015 
- ACTIVE BRAINS LTD- 04502742 - Incorporated on 2 August 2002 
- GLOBAL BRAINS LTDDissolved- 06931619 - Dissolved on 6 July 2010 
- MONKEY BRAINS LTD- 07043308 - Incorporated on 15 October 2009 
- SMART BRAINS UK LTD- 08929874 - Incorporated on 10 March 2014 
- HUNGRY BRAINS LTDLiquidation- 09811742 - Incorporated on 6 October 2015 
- ICONIC BRAINS LTDActive - Proposal to Strike off- 10661598 - Incorporated on 9 March 2017 
- PHOTON BRAINS LTD- 13356275 - Incorporated on 26 April 2021 
- BRAINS CONSULTING LTD- 14991792 - Incorporated on 10 July 2023 
- CREATIVE BRAINS LTDActive - Proposal to Strike off- 06724144 - Incorporated on 15 October 2008 
- COMMERCIAL BRAINS LTDActive - Proposal to Strike off- 07306563 - Incorporated on 7 July 2010 
- BRAINS CONSULTANCY LTD- 06697338 - Incorporated on 15 September 2008 
- PARALLEL BRAINS LTD.Active - Proposal to Strike off- 08484433 - Incorporated on 11 April 2013 
- BRIGHTER BRAINS LTDActive - Proposal to Strike off- 11382629 - Incorporated on 25 May 2018 
- BRAINS REWIRED LTD- 12462580 - Incorporated on 14 February 2020