- MCGRATH & O'NEILL LTDLiquidation- 10350089 - Incorporated on 27 August 2016 
- GRIME SCENE LTDActive - Proposal to Strike off- 11901302 - Incorporated on 23 March 2019 
- MCGRATH CIVILS LTD- 09761075 - Incorporated on 3 September 2015 
- SUTTON MCGRATH HARTLEY LTD- 03090779 - Incorporated on 14 August 1995 
- BJ MCGRATH LIMITEDLiquidation- SC340105 - Incorporated on 25 March 2008 
- DECLAN MCGRATH LTDDissolved- 08041998 - Dissolved on 24 September 2013 
- MCGRATH FIXING LTD- 09659771 - Incorporated on 26 June 2015 
- CONOR MCGRATH UI LTDDisolved- 11729554 - Dissolved on 7 February 2023 
- CLAIRE MCGRATH LTDDisolved- 13883334 - Dissolved on 2 July 2024 
- THOMAS MCGRATH LTD- 15118289 - Incorporated on 6 September 2023 
- BRENDAN KEMP BOILER DESIGN LIMITEDActive - Proposal to Strike off- 10168968 - Incorporated on 9 May 2016 
- TEARLACH BYFORD-FLOCKHART LIMITEDDisolved- 07087161 - Dissolved on 19 July 2022 
- LAST ROUND PRODUCTIONS LTD- 13630343 - Incorporated on 19 September 2021 
- MCGRATH GLOBAL LTD- 08496284 - Incorporated on 19 April 2013 
- MCGRATH TV LIMITEDActive - Proposal to Strike off- 10827424 - Incorporated on 20 June 2017 
- KNIGHT-MCGRATH LLPDissolved- OC345075 - Dissolved on 14 April 2015 
- MCGRATH HEALTH LTD- NI653428 - Incorporated on 1 June 2018 
- J MCGRATH MEDIA (UK) LTD- 11481549 - Incorporated on 24 July 2018 
- MCGRATH PAVING LTD- 10293203 - Incorporated on 25 July 2016 
- AG MCGRATH LIMITEDDissolved- 10821907 - Dissolved on 4 December 2018