- MR MR LTDActive - Proposal to Strike off- 15533685 - Incorporated on 1 March 2024 
- HARRIS & HARRIS LIMITED- 06475290 - Incorporated on 16 January 2008 
- M CONNORS LLPDissolved- OC315677 - Dissolved on 10 April 2007 
- TJ O'CONNOR LTDDissolved- 11000644 - Dissolved on 2 July 2019 
- PJ O'CONNOR LTDDisolved- NI645537 - Dissolved on 11 January 2022 
- O'CONNORS LLP- OC305740 - Incorporated on 8 October 2003 
- NJ CONNOR LTD- SC540732 - Incorporated on 21 July 2016 
- D. T. CONNOR & CO. LTD- 13448562 - Incorporated on 10 June 2021 
- MF CONNOR LTDActive - Proposal to Strike off- 13798579 - Incorporated on 13 December 2021 
- OD CONNOR LTDDisolved- 14112038 - Dissolved on 6 February 2024 
- HARRIS HARRIS LTDDisolved- 12168963 - Dissolved on 11 January 2022 
- CK O'CONNOR CYFDissolved- 04502577 - Dissolved on 27 September 2011 
- MR&MRS B'S LTDDissolved- 10677155 - Dissolved on 20 August 2019 
- MR&MRS LTDActive - Proposal to Strike off- 12389034 - Incorporated on 7 January 2020 
- DLP DERIVATIVES LLPActive - Proposal to Strike off- OC354152 - Incorporated on 15 April 2010 
- OCONNOR ELECTRICAL LIMITED- 02766143 - Incorporated on 20 November 1992 
- PETER HARRISON HERITAGE FOUNDATIONDisolved- 08174202 - Dissolved on 13 December 2022 
- MR & MRS O LTD.Active - Proposal to Strike off- SC217464 - Incorporated on 29 March 2001 
- MR & MRS W LTD- 08480767 - Incorporated on 9 April 2013 
- MR&MRS LTDActive - Proposal to Strike off- 10922002 - Incorporated on 18 August 2017