- DERMOT MURPHY LTDDisolved- NI667388 - Dissolved on 3 August 2021 
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- 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 
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- MR JOHNSTONE'S T.B LIMITEDActive - Proposal to Strike off- 08055187 - Incorporated on 2 May 2012 
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- JOHN HERBERT GALLIMORE LTD- 13783336 - Incorporated on 6 December 2021 
- MR JOHN CONSULTING LIMITEDDisolved- 10226270 - Dissolved on 26 April 2022