- O'HALLORAN CONSULTANCY LIMITED- 04588106 - Incorporated on 12 November 2002 
- O'HALLORAN ELECTRICAL LIMITEDActive - Proposal to Strike off- 09519030 - Incorporated on 31 March 2015 
- ALISON O'HALLORAN LIMITEDActive - Proposal to Strike off- 09496390 - Incorporated on 18 March 2015 
- O'HALLORAN SUPPLIES LIMITEDLiquidation- 09605187 - Incorporated on 22 May 2015 
- O'HALLORAN RESTAURANT LIMITED- 12098915 - Incorporated on 11 July 2019 
- MR JOHN INTERNATIONAL LTD- 15732972 - Incorporated on 21 May 2024 
- DERMOTT LIMITEDDisolved- 14561955 - Dissolved on 24 December 2024 
- DERMOT JASPER LTDDisolved- 14691288 - Dissolved on 30 July 2024 
- MR DARRYL JOHN EVANS LTDDisolved- 15406074 - Dissolved on 17 June 2025 
- MR JOHNSTONE'S T.B LIMITEDActive - Proposal to Strike off- 08055187 - Incorporated on 2 May 2012 
- THE LAW CHIEF JUSTICE MR NEVILLE A. JOHNSON (UK) LIMITEDActive - Proposal to Strike off- 04585990 - Incorporated on 8 November 2002 
- NICOLA OHALLORAN PROPERTY LTDDisolved- 12548516 - Dissolved on 18 June 2024 
- J P HALLORAN LIMITEDActive - Proposal to Strike off- 05561961 - Incorporated on 13 September 2005 
- MR JOHN KIMBELL LIMITEDDisolved- 12104025 - Dissolved on 24 December 2024 
- JOHN HERBERT GALLIMORE LTD- 13783336 - Incorporated on 6 December 2021 
- MR JOHN CONSULTING LIMITEDDisolved- 10226270 - Dissolved on 26 April 2022 
- PAUL JOHN O'HALLORAN- Born February 1970 - C/O RODLIFFE ACCOUNTING LTD LEVEL 33, 25 CANADA SQ, LONDON, ENGLAND, E14 5LB 
- RYAN JOHN HALLORAN- Born May 1987 - 20-22 WENLOCK ROAD, LONDON, ENGLAND, N1 7GU 
- BRIAN O HALLORAN LTD- 15311823 - Incorporated on 27 November 2023 
- DERMOT COSTELLO LIMITED- 04852958 - Incorporated on 31 July 2003