- G.A.W.FERGUSON & CO- SC084670 - Incorporated on 20 September 1983 
- R & E FERGUSON 2 LIMITEDDisolved- 13110360 - Dissolved on 12 April 2022 
- OAKLANDS 123 LIMITEDLiquidation- 04487740 - Incorporated on 16 July 2002 
- MCWILLIAMS HOMES (NI) LTDActive - Proposal to Strike off- NI605113 - Incorporated on 15 November 2010 
- FERGUSON IT SERVICES LTDDisolved- 09179526 - Dissolved on 18 July 2023 
- MR.MR. LTDDisolved- 14252327 - Dissolved on 5 December 2023 
- MR MR2 LTD- 11218539 - Incorporated on 21 February 2018 
- J. J. MCWILLIAMS PROPERTY LTD- NI684078 - Incorporated on 26 November 2021 
- MR & MR LTD- 16489396 - Incorporated on 2 June 2025 
- P & R FERGUSON LTD.Disolved- SC226022 - Dissolved on 27 June 2023 
- FERGUSON B LTDActive - Proposal to Strike off- 06191208 - Incorporated on 29 March 2007 
- D&T FERGUSON LTD- SC681988 - Incorporated on 25 November 2020 
- A & J FERGUSON LTD- 13603981 - Incorporated on 6 September 2021 
- K D FERGUSON LTD.- SC746145 - Incorporated on 3 October 2022 
- JOHN MCWILLIAMS & SONS LIMITEDDissolved- SC239650 - Dissolved on 20 October 2012 
- MCWILLIAMS HOLDINGS (NI) LTDDissolved- NI605147 - Dissolved on 12 December 2014 
- MCWILLIAMS CAR SALES LIMITED- NI050889 - Incorporated on 9 June 2004 - 27 Carrickblacker Road, Craigavon, BT63 5AX 
- NIALL MCWILLIAMS CONSULTANCY LIMITEDDisolved- 11329714 - Dissolved on 25 April 2023 
- MCWILLIAMS PROPERTY INVESTMENTS LIMITED- 16259357 - Incorporated on 18 February 2025 
- M F FERGUSON LLPDissolved- OC339366 - Dissolved on 15 May 2018