- GERRY GALLAGHER LIMITEDDisolved- SC730320 - Dissolved on 4 June 2024 
- HARVER GALLAGHER LTD- 15611942 - Incorporated on 3 April 2024 
- GALLAGHER ROBERTS LIMITED- 15648569 - Incorporated on 15 April 2024 
- GALLAGHER DOHERTY LTDDissolved- NI061990 - Dissolved on 8 October 2010 
- GALLAGHER PROPERTIES LIMITED- 02082870 - Incorporated on 11 December 1986 
- GALLAGHER AVIATION LIMITEDDisolved- 06946526 - Dissolved on 1 February 2022 
- GALLAGHER GROUNDWORKS LTD.Dissolved- SC286729 - Dissolved on 13 June 2017 
- JAMES GALLAGHER LIMITED- 05987162 - Incorporated on 2 November 2006 
- GALLAGHER BROUGHTON LIMITEDActive - Proposal to Strike off- 03408901 - Incorporated on 24 July 1997 
- LAWTON GALLAGHER LIMITED- 04118357 - Incorporated on 1 December 2000 
- AMY GALLAGHER LIMITEDActive - Proposal to Strike off- 08025740 - Incorporated on 11 April 2012 
- OGDEN GALLAGHER LIMITED- 07714236 - Incorporated on 21 July 2011 
- EOIN GALLAGHER LIMITEDActive - Proposal to Strike off- 07743901 - Incorporated on 17 August 2011 
- SPENCER GALLAGHER LIMITEDDissolved- 07320605 - Dissolved on 28 August 2012 
- GALLAGHER HGV LIMITEDActive - Proposal to Strike off- 09679588 - Incorporated on 9 July 2015 
- GALLAGHER CARPENTRY LIMITEDActive - Proposal to Strike off- 04710412 - Incorporated on 25 March 2003 
- GALLAGHER CONCRETE LIMITED- 03770347 - Incorporated on 13 May 1999 
- GALLAGHER DEVELOPMENT LIMITEDDisolved- SC351047 - Dissolved on 11 April 2023 
- GALLAGHER LAND LIMITED- 06010720 - Incorporated on 27 November 2006 
- GALLAGHER POOLE LIMITEDDisolved- 04003783 - Dissolved on 17 October 2023