- DEMPSEY CONSULTING LTDDissolved- 05753118 - Dissolved on 27 April 2010 
- PHILLIPS DEMPSEY LTD- 06819947 - Incorporated on 16 February 2009 
- FITZMAURICE & DEMPSEY LTDActive - Proposal to Strike off- 07499771 - Incorporated on 20 January 2011 
- DEMPSEY TRADING LTDDissolved- 07905094 - Dissolved on 20 August 2013 
- DEMPSEY & HARRISON LIMITED- 07971112 - Incorporated on 1 March 2012 
- DEMPSEY PHARMACY LIMITEDLiquidation- 04422548 - Incorporated on 23 April 2002 
- DEMPSEY GENERATIONS LTD- 08574586 - Incorporated on 18 June 2013 
- DEMPSEY SOLUTIONS LIMITEDDisolved- 08607499 - Dissolved on 22 October 2024 
- DEMPSEY BROS LIMITEDActive - Proposal to Strike off- 09364886 - Incorporated on 22 December 2014 
- DEMPSEY CONSULTANCY LIMITEDActive - Proposal to Strike off- 10403668 - Incorporated on 30 September 2016 
- DEMPSEY DIGITAL LTD- SC813234 - Incorporated on 11 June 2024 
- MR.MR. LTDDisolved- 14252327 - Dissolved on 5 December 2023 
- DEMPSEY HEATING LIMITED- 03205379 - Incorporated on 30 May 1996 
- DEMPSEY ENGINEERING LTDDissolved- 06763227 - Dissolved on 22 March 2011 
- STUDIO DEMPSEY LIMITEDDisolved- 07703074 - Dissolved on 11 November 2023 
- DEMPSEY CONSTRUCTION LTD- 07793146 - Incorporated on 30 September 2011 
- DEMPSEY BUILDERS LTDLiquidation- 07823008 - Incorporated on 25 October 2011 
- DEMPSEY LEISURE LIMITEDActive - Proposal to Strike off- NI622206 
- DEMPSEY EDUCATION LTDActive - Proposal to Strike off- 11332761 - Incorporated on 27 April 2018 
- ANNABEL DEMPSEY LTDActive - Proposal to Strike off- 11464836 - Incorporated on 16 July 2018