- GALLAGHER RIVERSIDE LIMITED- 03412736 - Incorporated on 31 July 1997 
- TATHAM & GALLAGHER LIMITED- 03691252 - Incorporated on 4 January 1999 
- CHRISTOPHER GALLAGHER LIMITED- 08320925 - Incorporated on 6 December 2012 
- GALLAGHER SOLUTIONS LTDActive - Proposal to Strike off- 08799518 - Incorporated on 3 December 2013 
- CIARAN GALLAGHER LIMITEDDissolved- NI622281 - Dissolved on 4 December 2018 
- REBECCA GALLAGHER LIMITEDDisolved- 08465629 - Dissolved on 30 August 2022 
- GALLAGHER LEISURE LIMITEDActive - Proposal to Strike off- 07858952 - Incorporated on 24 November 2011 
- BP GALLAGHER LIMITEDDisolved- 06818159 - Dissolved on 13 December 2022 
- GALLAGHER TRANSPORT LIMITED- 09347980 - Incorporated on 9 December 2014 
- GALLAGHER & DAUGHTERS LTD- 09382801 - Incorporated on 12 January 2015 
- PETER GALLAGHER LIMITEDActive - Proposal to Strike off- 09446309 - Incorporated on 18 February 2015 
- GALLAGHER MEDIA LIMITED- 09166524 - Incorporated on 7 August 2014 
- GALLAGHER CARPENTRY LIMITEDDisolved- 12614270 - Dissolved on 26 July 2022 
- WE GALLAGHER LIMITED- 10877217 - Incorporated on 21 July 2017 
- HYDE & GALLAGHER LIMITEDActive - Proposal to Strike off- 10899401 - Incorporated on 4 August 2017 
- GALLAGHER RUSSELL LTD- 12486837 - Incorporated on 27 February 2020 
- GALLAGHER GARDENS LIMITED- 09803995 - Incorporated on 1 October 2015 
- TONY GALLAGHER LIMITEDActive - Proposal to Strike off- 09921060 - Incorporated on 17 December 2015 
- GALLAGHER VENDING LTD- 11840642 - Incorporated on 21 February 2019 
- GALLAGHER QUANTUM LTD- 11906206 - Incorporated on 26 March 2019