- MCCARTHY MARLAND LIMITED- 08188611 - Incorporated on 22 August 2012 
- MCCARTHY RAIL LIMITEDActive - Proposal to Strike off- 07567763 - Incorporated on 17 March 2011 
- ROY MCCARTHY LIMITEDLiquidation- 01393606 - Incorporated on 11 October 1978 
- MICHAELA MCCARTHY LTD- 07667578 - Incorporated on 13 June 2011 
- MCCARTHY LAW LIMITED- SC458919 - Incorporated on 11 September 2013 
- SCOTT MCCARTHY LIMITED- 09031214 - Incorporated on 8 May 2014 
- TRISH MCCARTHY LIMITED- 09104525 - Incorporated on 26 June 2014 
- CIARAN MCCARTHY LTDActive - Proposal to Strike off- 08645206 - Incorporated on 9 August 2013 
- MCCARTHY ELECTRICAL LIMITED- 09766941 - Incorporated on 8 September 2015 - Stockley Park, 4 Longwalk Rd, Uxbridge, Hayes, UB11 1FE 
- IRIS MCCARTHY LIMITED- 10021154 - Incorporated on 23 February 2016 
- MCCARTHY ESTATES LIMITEDDisolved- 12658099 - Dissolved on 16 November 2021 
- MCCARTHY PRODUCTIONS LIMITED- 12737181 - Incorporated on 13 July 2020 
- CAMERON MCCARTHY LTDDisolved- SC666629 - Dissolved on 16 July 2024 
- MCCARTHY VENTURES LIMITEDActive - Proposal to Strike off- 10981284 - Incorporated on 26 September 2017 
- EMER MCCARTHY LIMITEDActive - Proposal to Strike off- 11994435 - Incorporated on 14 May 2019 
- MCCARTHY PROPERTY LTDActive - Proposal to Strike off- 12074429 - Incorporated on 28 June 2019 
- MCCARTHY AVIATION LTDActive - Proposal to Strike off- 11133432 - Incorporated on 4 January 2018 
- MCCARTHY SOLUTIONS LIMITED- 10300605 - Incorporated on 28 July 2016 
- MCCARTHY RESOURCING LIMITEDActive - Proposal to Strike off- 10497106 - Incorporated on 25 November 2016 
- MCCARTHY PSYCHOLOGY LIMITEDDisolved- 13467166 - Dissolved on 1 November 2022