- A. F. FERGUSON & CO LTDDisolved- 13038041 - Dissolved on 26 April 2022 
- LX FERGUSON LTDDisolved- 13682218 - Dissolved on 2 July 2024 
- NV FERGUSON LTDDisolved- 13887251 - Dissolved on 8 July 2025 
- K FERGUSONS LTD- 04194926 - Incorporated on 5 April 2001 
- DP FERGUSON LTDDisolved- 13962975 - Dissolved on 16 January 2024 
- A F FERGUSONS LTD- 14644370 - Incorporated on 6 February 2023 
- PM FERGUSON LTDDisolved- 13522924 - Dissolved on 24 December 2024 
- CHRIS MCWILLIAMS COMMUNICATIONS LIMITED- 12340209 - Incorporated on 29 November 2019 
- CAMPBELL MCWILLIAMS CONSULTING LIMITEDActive - Proposal to Strike off- SC282975 - Incorporated on 8 April 2005 
- PT MCWILLIAMS CONTRACTS LIMITEDActive - Proposal to Strike off- NI609281 
- FINNIESTON FRANCHI & MCWILLIAMS LLPDisolved- SO304538 - Dissolved on 26 December 2023 
- PT MCWILLIAMS EARTHWORKS LIMITED- NI623999 - Incorporated on 9 April 2014 
- MCWILLIAMS COMMERCIAL SERVICES LTDActive - Proposal to Strike off- 10655148 - Incorporated on 7 March 2017 
- MCWILLIAMS-WHITE MEDICAL LTD- 12094875 - Incorporated on 10 July 2019 
- MCWILLIAMS AND SON LIMITED- 13302023 - Incorporated on 30 March 2021 
- K FERGUSON TM LTDDisolved- 15122613 - Dissolved on 11 February 2025 
- SD FERGUSON LTD- 14085941 - Incorporated on 4 May 2022 
- MT FERGUSON LTD- 12259805 - Incorporated on 14 October 2019 
- CW FERGUSON LTDActive - Proposal to Strike off- 08524175 - Incorporated on 10 May 2013 
- FERGUSON TM LTD- 15109535 - Incorporated on 1 September 2023