- HEFFERNAN CONTRACTS LIMITED- 08858747 - Incorporated on 23 January 2014 
- HEFFERNAN GROUNDWORKS LTDDisolved- 12166204 - Dissolved on 22 July 2025 
- HEFFERNAN CASTLE LTDDissolved- 10254533 - Dissolved on 3 July 2018 
- HEFFERNANS LIMITEDActive - Proposal to Strike off- 07826888 - Incorporated on 28 October 2011 
- I LUKE & LUKE LIMITEDActive - Proposal to Strike off- 10749058 - Incorporated on 2 May 2017 
- LUKE & LUKE LIMITED- 04511171 - Incorporated on 14 August 2002 
- C.K. HEFFERNAN LIMITED- 01220857 - Incorporated on 28 July 1975 
- HEFFERNAN GROUP LTDActive - Proposal to Strike off- 10609228 - Incorporated on 8 February 2017 
- HEFFERNAN & PARTNERS LIMITED- 03021067 - Incorporated on 13 February 1995 
- HEFFERNAN PUBS LIMITEDDisolved- 10445151 - Dissolved on 12 April 2022 
- HEFFERNAN ENTERPRISE LIMITED- 14328321 - Incorporated on 31 August 2022 
- JAMES HEFFERNAN H1093 LTD- 04989834 - Incorporated on 9 December 2003 
- TOULMIN & HEFFERNAN LIMITEDActive - Proposal to Strike off- 03023840 - Incorporated on 20 February 1995 
- HEFFERNAN CONSULTANCY LIMITEDActive - Proposal to Strike off- 06747906 - Incorporated on 12 November 2008 
- HEFFERNAN CONSTRUCTION LTDLiquidation- 07546128 - Incorporated on 28 February 2011 
- HEFFERNAN PROPERTIES LIMITED- 12335802 - Incorporated on 27 November 2019 
- CLAIRE HEFFERNAN LTD- 09827235 - Incorporated on 16 October 2015 
- HEFFERNAN CONSTRUCTION LIMITED- 14344516 - Incorporated on 8 September 2022 
- JOHN HEFFERNAN LIMITEDDisolved- 13564620 - Dissolved on 7 February 2023 
- LUKE LTD- 12382456 - Incorporated on 2 January 2020