- MATTHEW O'DONNELL LLPDisolved- OC366107 - Dissolved on 15 February 2022 
- O'DONNELL ENGINEERING LTD.Active - Proposal to Strike off- SC391962 - Incorporated on 21 January 2011 
- M O'DONNELL LIMITED- 08159331 - Incorporated on 27 July 2012 
- O'DONNELL CONSTRUCTION LIMITEDLiquidation- 01998324 - Incorporated on 11 March 1986 
- O'DONNELL COMPOSITES LTD- 09188684 - Incorporated on 28 August 2014 
- PATRIC O'DONNELL LIMITEDActive - Proposal to Strike off- 09228950 - Incorporated on 22 September 2014 
- O'DONNELL STONEBUILD LIMITEDActive - Proposal to Strike off- SC491267 - Incorporated on 14 November 2014 
- O'DONNELL HOLDINGS LIMITED- 09705597 - Incorporated on 28 July 2015 
- MYLES O'DONNELL LTDActive - Proposal to Strike off- 09736684 - Incorporated on 17 August 2015 
- O'DONNELL TOWNSEND LIMITEDActive - Proposal to Strike off- 11643595 - Incorporated on 25 October 2018 
- O'DONNELL OFFSHORE LIMITED- 11684560 - Incorporated on 19 November 2018 
- O'DONNELL ASSETS LIMITED- 12460324 - Incorporated on 13 February 2020 
- O'DONNELL FABRICATIONS LIMITEDDisolved- 12904611 - Dissolved on 13 July 2021 
- O'DONNELL SURVEYING LIMITED- 10071923 - Incorporated on 18 March 2016 
- SHREYA O'DONNELL LIMITEDActive - Proposal to Strike off- 11095977 - Incorporated on 5 December 2017 
- O'DONNELL CATERING LTDActive - Proposal to Strike off- NI650269 
- ANTHONY O'DONNELL LTDDisolved- 13033178 - Dissolved on 26 April 2022 
- GOODINGS O'DONNELL LTDDisolved- 12953488 - Dissolved on 22 March 2022 
- O'DONNELL PROPERTY LTD- 15133928 - Incorporated on 12 September 2023 
- KENNETH O'DONNELL LTD- 16226702 - Incorporated on 3 February 2025