- DANIEL JOHN O'BRIEN LTDDisolved- 12463665 - Dissolved on 29 March 2022 
- DANIEL R O'BRIEN O0060 LTDDisolved- 04846894 - Dissolved on 26 November 2024 
- DANIEL SEAN O'BRIEN LTD.Disolved- 11219672 - Dissolved on 20 June 2023 
- MR. JOHN NEEDisolved- NI610586 - Dissolved on 18 June 2024 
- O'BRIEN & IVANOVIC LTD- 05713975 - Incorporated on 17 February 2006 
- DANIEL O'BRIEN INNOVATIONS LIMITEDDissolved- 08185773 - Dissolved on 26 September 2017 
- JOHN DANIEL LTDActive - Proposal to Strike off- 11476756 - Incorporated on 22 July 2018 
- JOHN O'BRIEN ESTATES LTD- 07180209 - Incorporated on 5 March 2010 
- TLCJ MR N A JOHNSON LIMITEDDisolved- 12680774 - Dissolved on 30 January 2024 
- MR AND MRS JOHNCOCK LTDDissolved- 09566798 - Dissolved on 8 May 2018 
- DANIEL JOHNS LTDLiquidation- 08559585 - Incorporated on 6 June 2013 
- JOHN O'BRIEN REMOVALS LTD- 07885852 - Incorporated on 19 December 2011 
- PORTLAND HULL LTD- 11251297 - Incorporated on 13 March 2018 
- DANIEL JOHNS BIRMINGHAM LTDDisolved- 10589283 - Dissolved on 27 July 2024 
- JOHN DANIEL LIMITED- 04854249 - Incorporated on 1 August 2003 
- JOHN O'BRIEN CONSULTING LIMITED- 13120214 - Incorporated on 7 January 2021 
- JOHN O'BRIEN CONSTRUCTION LTD- 06550432 - Incorporated on 1 April 2008 
- JOHN O'BRIEN ENVIRONMENTAL LIMITEDActive - Proposal to Strike off- 14788281 - Incorporated on 10 April 2023 
- MR JOHN'S LIMITEDActive - Proposal to Strike off- 04692323 - Incorporated on 10 March 2003 
- MR NIGEL JOHN LTDActive - Proposal to Strike off- 15513862 - Incorporated on 22 February 2024