- DONNELLO LTD- 15627137 - Incorporated on 8 April 2024 
- PAUL O'DONNELL & ASSOCIATES CONSULTANCY AND TRAINING SERVICES LIMITEDDissolved- 04345872 - Dissolved on 30 June 2015 
- AFFILIO LTD- 11620545 - Incorporated on 12 October 2018 
- DONNELLIS LTDActive - Proposal to Strike off- 11575084 - Incorporated on 18 September 2018 
- L.IR.DONNELLY LTD- 12006273 - Incorporated on 20 May 2019 
- M DONNELLY TM LTDDisolved- 13606820 - Dissolved on 9 May 2023 
- IE DONNELLY LTD- 13567721 - Incorporated on 16 August 2021 
- BEN O'DONNELL LTDDisolved- NI673454 - Dissolved on 22 March 2022 
- BR DONNELLY LTDDisolved- 13516893 - Dissolved on 20 February 2024 
- LT DONNELLY LTDDisolved- 14090478 - Dissolved on 8 October 2024 
- O'DONNELL DISTRIBUTION LTD- SC755896 - Incorporated on 19 January 2023 
- O'DONNELL DEVELOPMENTS LIMITEDDisolved- 02606227 - Dissolved on 22 February 2023 
- O'DONNELL DESIGN LTD- SC736487 - Incorporated on 24 June 2022 
- O'DONNELL CONSULTANCY LIMITEDActive - Proposal to Strike off- 06890526 - Incorporated on 28 April 2009 
- O'DONNELL FLUIDS LIMITEDDissolved- 04189817 - Dissolved on 18 November 2014 
- O'DONNELL ASSOCIATES LIMITEDActive - Proposal to Strike off- 07558954 - Incorporated on 10 March 2011 
- GABRIEL O'DONNELL LIMITEDDisolved- 07683618 - Dissolved on 14 February 2023 
- O'DONNELL CONSULTING LIMITEDActive - Proposal to Strike off- 07119887 - Incorporated on 8 January 2010 
- PAT O'DONNELL & COMPANY- FC031734 - Incorporated on 24 July 1973 
- MICHAEL O'DONNELL LTDActive - Proposal to Strike off- 08836678 - Incorporated on 8 January 2014