- O'CONNOR INVESTIGATIONS LIMITEDDisolved- 09155581 - Dissolved on 18 January 2022 
- O'CONNOR INTL LIMITEDActive - Proposal to Strike off- 08304906 - Incorporated on 23 November 2012 
- O'CONNOR GROUP LIMITED- 09940856 - Incorporated on 7 January 2016 
- CLARE O'CONNOR LTDDisolved- 10738736 - Dissolved on 9 May 2023 
- ROGAN O'CONNOR LTD- 12899266 - Incorporated on 23 September 2020 
- O'CONNOR ANTIQUES LTDActive - Proposal to Strike off- 10902910 - Incorporated on 7 August 2017 
- NOREEN O'CONNOR LTDActive - Proposal to Strike off- 10165789 - Incorporated on 6 May 2016 
- JULIET O'CONNOR LTDDissolved- 11091934 - Dissolved on 10 September 2019 
- RICHARD O'CONNOR LTDActive - Proposal to Strike off- 11278300 - Incorporated on 27 March 2018 
- CLAIRE O'CONNOR LIMITEDActive - Proposal to Strike off- 10399650 - Incorporated on 28 September 2016 
- DANIEL O'CONNOR LTD- 10418073 - Incorporated on 10 October 2016 
- O'CONNOR FORMWORK LTD- NI679620 - Incorporated on 27 May 2021 
- LYNESS O'CONNOR LIMITED- 14438196 - Incorporated on 24 October 2022 
- O'CONNOR CONSULTING LTDDisolved- 14239185 - Dissolved on 4 June 2024 
- O'CONNOR MURRAY LIMITED- NI694695 - Incorporated on 20 February 2023 
- O'CONNOR RECRUITMENT LTDDisolved- 14912232 - Dissolved on 2 April 2024 
- O'CONNOR RECRUITMENT LTD- 15715038 - Incorporated on 11 May 2024 
- O'CONNOR & BETTY'S LIMITEDDisolved- 15296347 - Dissolved on 29 April 2025 
- O'CONNOR HOUSEKEEPING LIMITED- 14069215 - Incorporated on 26 April 2022 
- MR NEVILLE ALPHONSO JOHNSON & MRS HELEN LISA JOHNSON (SWIFT SECURITY AIB UK) LIMITEDActive - Proposal to Strike off- 11667805 - Incorporated on 8 November 2018