- BRETT CONSULTANCY LIMITEDActive - Proposal to Strike off- SC159041 - Incorporated on 5 July 1995 
- BRETT INVESTMENT LIMITED- SC244273 - Incorporated on 20 February 2003 
- BRETT CONSTRUCTION LIMITED- 06136057 - Incorporated on 5 March 2007 
- BRETT HORSEPOWER LIMITED- 05814538 - Incorporated on 12 May 2006 
- BRETT PAVING LIMITEDDisolved- 00493368 - Dissolved on 1 July 2025 
- BRETT RAIL LIMITEDActive - Proposal to Strike off- 05645905 - Incorporated on 6 December 2005 
- BRETT FUELS LIMITED- 05332724 - Incorporated on 14 January 2005 
- BRETT PLUMBING LIMITED- 03822741 - Incorporated on 10 August 1999 
- BRETT INCORPORATED LIMITED- 04869163 - Incorporated on 18 August 2003 
- ARTHUR BRETT LIMITEDDissolved- 06525631 - Dissolved on 6 March 2012 
- BRETT MASON LIMITEDActive - Proposal to Strike off- 07579748 - Incorporated on 28 March 2011 
- BRETT BUILDERS LTDActive - Proposal to Strike off- 07696572 - Incorporated on 7 July 2011 
- BRETT THORNEWELL LTDActive - Proposal to Strike off- 07470508 - Incorporated on 15 December 2010 
- BRETT SLOOTS LIMITEDActive - Proposal to Strike off- 07856891 - Incorporated on 22 November 2011 
- JOSEPH BRETT LIMITED- 06271946 - Incorporated on 7 June 2007 
- BRETT GOODS LIMITEDDisolved- SC481872 - Dissolved on 15 April 2025 
- BRETT SARGESSON LTDActive - Proposal to Strike off- 08674568 - Incorporated on 3 September 2013 
- BRETT COULSON LIMITED- 08665112 - Incorporated on 27 August 2013 
- BRETT & PARKER LIMITEDActive - Proposal to Strike off- 08315193 - Incorporated on 3 December 2012 
- BRETT & ASSOCIATES LTD- 10741297 - Incorporated on 26 April 2017