- DAVID AND SIOBHAN LIMITEDActive - Proposal to Strike off- 07110743 - Incorporated on 22 December 2009 
- SIOBHAN LEANNE RIGBY LTDActive - Proposal to Strike off- 09572129 - Incorporated on 1 May 2015 
- WALDEN O'NEILL LTDDisolved- 09415661 - Dissolved on 11 March 2025 
- P.V. O'NEILL LIMITEDLiquidation- 00504069 - Incorporated on 2 February 1952 
- PETER O'NEILL LTD- NI068413 - Incorporated on 10 March 2008 
- NEILL 2 LIMITEDActive - Proposal to Strike off- 08596041 - Incorporated on 4 July 2013 
- R.S. O'NEILL LIMITEDActive - Proposal to Strike off- 08422938 - Incorporated on 27 February 2013 
- KEVIN O'NEILL LTD- 09400938 - Incorporated on 22 January 2015 
- D. O'NEILL LIMITEDDisolved- 11621055 - Dissolved on 25 October 2022 
- BRIAN NEILL (20447) LTDActive - Proposal to Strike off- 10112696 - Incorporated on 8 April 2016 
- MEGAN O'NEILL 6550 LTDActive - Proposal to Strike off- 10356324 - Incorporated on 2 September 2016 
- FIONA O'NEILL LTD.Active - Proposal to Strike off- 10507843 - Incorporated on 2 December 2016 
- O’NEILL AUTOS LTDDisolved- SC720556 - Dissolved on 27 June 2023 
- O'NEILLS BARS 2025 LTD- NI727887 - Incorporated on 27 March 2025 
- MOYNA O'NEILL LTD- 11435165 - Incorporated on 27 June 2018 
- A. G. O'NEILL LIMITED- NI017946 - Incorporated on 13 November 1984 
- KELLY & O'NEILL LTD- NI603399 - Incorporated on 8 June 2010 
- R.M. O'NEILL LIMITED- SC393078 - Incorporated on 8 February 2011 
- M T O'NEILL LIMITEDDisolved- 04766601 - Dissolved on 15 August 2023 
- SHANE O'NEILL LTD- NI045925 - Incorporated on 25 March 2003