- DEMPSEY EXPORT LLPActive - Proposal to Strike off- OC361234 - Incorporated on 27 January 2011 
- JOSEPH DEMPSEY LTD- 07170801 - Incorporated on 26 February 2010 
- THOMAS DEMPSEY LTD- 10452130 - Incorporated on 31 October 2016 
- DEMPSEY MEDICAL LTD- 14950104 - Incorporated on 21 June 2023 
- DESMOND & DEMPSEY LTD- 09007844 - Incorporated on 23 April 2014 
- DEMPSEY PRECISION LTD- 04807354 - Incorporated on 23 June 2003 
- DEMPSEY ELECTRICAL LIMITEDDissolved- 06208672 - Dissolved on 23 November 2010 
- KERR DEMPSEY LIMITED- SC449301 - Incorporated on 7 May 2013 
- DEMPSEY ENGINEERING LIMITEDActive - Proposal to Strike off- 09036099 - Incorporated on 13 May 2014 
- DAWSON DEMPSEY LIMITED- 11388570 - Incorporated on 30 May 2018 
- DEMPSEY TRANSPORT LIMITEDActive - Proposal to Strike off- 10061245 - Incorporated on 14 March 2016 
- DEMPSEY COATES LIMITED- 11010916 - Incorporated on 12 October 2017 
- DEMPSEY CLEANING LIMITEDDisolved- 14365124 - Dissolved on 27 February 2024 
- DEMPSEY SUPPORT LTDDissolved- 10007581 - Dissolved on 6 February 2018 
- DEMPSEY MAXWELL LLPActive - Proposal to Strike off- OC425119 - Incorporated on 4 December 2018 
- DEMPSEY FURNISHINGS LTDActive - Proposal to Strike off- 11547888 - Incorporated on 3 September 2018 
- DEMPSEY DYER LIMITEDLiquidation- 01309583 - Incorporated on 21 April 1977 - Units 11-13, Langthwaite Business Park, WF9 3AP 
- DEMPSEY PROSURV LTD.- 02126850 - Incorporated on 29 April 1987 
- DEMPSEY CONSULTING LTDDissolved- 05753118 - Dissolved on 27 April 2010 
- PHILLIPS DEMPSEY LTD- 06819947 - Incorporated on 16 February 2009