- GALLAGHER RESIDENTIAL LIMITED- 04063116 - Incorporated on 25 August 2000 
- GALLAGHER COLOMBIA (UK) LIMITED- 09019508 - Incorporated on 30 April 2014 
- REDFINCH SOFTWARE LIMITED- 09444678 - Incorporated on 17 February 2015 
- BEN GALLAGHER LTDDisolved- 13443204 - Dissolved on 1 October 2024 
- ARTHUR J. GALLAGHER (UK) LIMITED- 01193013 - Incorporated on 9 December 1974 
- NESS GALLAGHER LLPDissolved- SO301614 - Dissolved on 7 May 2010 
- GALLAGHERS GYM LTDDisolved- 07842276 - Dissolved on 14 February 2023 
- WARD & GALLAGHER LTDDisolved- 06521285 - Dissolved on 20 May 2025 
- SEAN GALLAGHER LTD- SC642950 - Incorporated on 27 September 2019 
- GALLAGHERS SOUTHAN LIMITED- 06999037 - Incorporated on 24 August 2009 
- GRE LIMITED- 13057546 - Incorporated on 2 December 2020 
- SEAN GALLAGHER LTDActive - Proposal to Strike off- SC503227 - Incorporated on 14 April 2015 
- GALLAGHER TRADE LP- SL026497 - Incorporated on 3 May 2016 
- GALLAGHER INNS LTDActive - Proposal to Strike off- 10234714 - Incorporated on 16 June 2016 
- NEIL GALLAGHER LTD- 14369425 - Incorporated on 22 September 2022 
- MATT GALLAGHER LTDActive - Proposal to Strike off- 11698612 - Incorporated on 27 November 2018 
- GALLAGHER ROSE LTDDisolved- 11904444 - Dissolved on 13 June 2023 
- GALLAGHER & SONS LTDDissolved- 05534381 - Dissolved on 27 March 2012 
- LIAM GALLAGHER LTD- 04371054 - Incorporated on 11 February 2002 
- GALLAGHER CARS LTD- SC640658 - Incorporated on 4 September 2019