- JONJO O’NEILL JR LTD- 11906509 - Incorporated on 26 March 2019 
- FP O'NEILL LIMITEDActive - Proposal to Strike off- 10275374 - Incorporated on 13 July 2016 
- DAISY O'NEILLS LTD- NI641990 - Incorporated on 7 November 2016 
- NEILL WALKER LTDActive - Proposal to Strike off- 10512060 - Incorporated on 6 December 2016 
- O'NEILL LONDON LTD- 08877881 - Incorporated on 5 February 2014 
- SARAH MA O'NEILL LTD.Disolved- 09665569 - Dissolved on 27 July 2021 
- O'NEILL MOTORS LTDDissolved- NI632974 - Dissolved on 14 August 2018 
- NEILL SANDYS LTDDissolved- 09055955 - Dissolved on 3 July 2018 
- JOSEPH S O'NEILL LTDActive - Proposal to Strike off- 09521614 - Incorporated on 1 April 2015 
- NEILL SPORTS LTDActive - Proposal to Strike off- 10590243 - Incorporated on 30 January 2017 
- S J NEILL DESIGN LTDActive - Proposal to Strike off- 10986094 - Incorporated on 28 September 2017 
- YVONNE O'NEILL LTD- SC578399 - Incorporated on 9 October 2017 
- OJ NEILL LIMITEDActive - Proposal to Strike off- 11145258 - Incorporated on 11 January 2018 
- JOHNNY O NEILL LTDDisolved- NI689887 - Dissolved on 24 December 2024 
- NEILL GEORGE LTDDisolved- 13226665 - Dissolved on 8 February 2022 
- O'NEILL BRUGGE LTDDisolved- 15231326 - Dissolved on 17 December 2024 
- EARTHSEER LTD- NI051606 - Incorporated on 31 August 2004 
- GERARD SERVICES (UK) LTD- 07778154 - Incorporated on 19 September 2011 
- PETER GERARD TRADE LTDDissolved- 04796575 - Dissolved on 30 March 2010 
- MR & MRS GIN LTDDisolved- 10554971 - Dissolved on 1 April 2025