- NEILL HOMES LTD- 12894861 - Incorporated on 21 September 2020 
- NEILL GROUP LTDDisolved- SC672812 - Dissolved on 27 June 2023 
- O'NEILL'S AUTOS LTDDisolved- 14230686 - Dissolved on 19 December 2023 
- BRIAN O NEILL LTDDisolved- NI691920 - Dissolved on 1 April 2025 
- NEILLTECH LTDDisolved- 14824747 - Dissolved on 8 October 2024 
- T&B NEILL LIMITED- 15903746 - Incorporated on 19 August 2024 
- CLARE O'NEILL LTD- 15915372 - Incorporated on 23 August 2024 
- M S NEILL LIMITED- 06908640 - Incorporated on 18 May 2009 
- O'NEILL H&S LIMITEDDisolved- SC477915 - Dissolved on 20 July 2021 
- D O'NEILL LIMITED- 08798579 - Incorporated on 2 December 2013 
- O'NEILL GROUP LTD- NI695701 - Incorporated on 24 March 2023 
- NEILLRHOS LTD- 16275546 - Incorporated on 25 February 2025 
- D.O.N. TAVERNS LIMITEDActive - Proposal to Strike off- 05128563 - Incorporated on 14 May 2004 
- THE MR AND MRS EMPIRE LTD- 15603811 - Incorporated on 29 March 2024 
- SOLV-X PRODUCTS LTD- NF003711 - Incorporated on 5 August 2003 
- MIMRAM SITE SERVICES LIMITEDLiquidation- 04384028 - Incorporated on 28 February 2002 
- O'NEILL MECHANICAL & ELECTRICAL SERVICES LIMITED- NI039851 - Incorporated on 14 December 2000 
- MDS GLOBAL SOURCING LIMITED- 16307855 - Incorporated on 11 March 2025 
- 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