- MALLEY PROPERTY LIMITED- 09911798 - Incorporated on 10 December 2015 
- O'MALLEY HOSPITALITY GROUP LIMITED- 11847971 - Incorporated on 26 February 2019 
- O MALLEY CONSTRUCTION CO. LTDDissolved- 08731809 - Dissolved on 26 May 2015 
- O'MALLEY PLANT SERVICES LIMITED- 08404645 - Incorporated on 15 February 2013 
- O'MALLEY PLANT HIRE LIMITED- 05536605 - Incorporated on 15 August 2005 
- O'MALLEY ELECTRICAL SERVICES LIMITED- 09236098 - Incorporated on 26 September 2014 
- O'MALLEY FINANCE SERVICES LTD- SC490368 - Incorporated on 3 November 2014 
- O'MALLEY COMMERCIAL SERVICES LIMITEDActive - Proposal to Strike off- 09487323 - Incorporated on 12 March 2015 
- E. O'MALLEY ASSOCIATES LIMITEDActive - Proposal to Strike off- 10426805 - Incorporated on 13 October 2016 
- M O'MALLEY INVESTMENTS LIMITED- 10554758 - Incorporated on 10 January 2017 
- O'MALLEY TRANSPORT SERVICES LTD- NI684884 - Incorporated on 10 January 2022 
- O'MALLEY BUILDING SERVICES LTDDisolved- 13849499 - Dissolved on 27 June 2023 
- FRIENDS OF O'MALLEY DANCERS- CE035411 
- UNIQUE REBELS UNION LTD- 07799711 - Incorporated on 6 October 2011 
- O'MALLEY&CO TOOL & PLANT HIRE LTD- 12161502 - Incorporated on 19 August 2019 
- THE MR AND MRS EMPIRE LTD- 15603811 - Incorporated on 29 March 2024 
- MR & MRS NIK LTD- 09626652 - Incorporated on 6 June 2015 
- MR AND MRS A LTDActive - Proposal to Strike off- 11538245 - Incorporated on 28 August 2018 
- O'MALLEY'S ADVISORY LIMITEDDisolved- 10182274 - Dissolved on 7 June 2022 
- MR & MRS VAN LTD- 14374749 - Incorporated on 25 September 2022