- HAYDEN PERSONNEL LIMITEDDisolved- 06142149 - Dissolved on 8 August 2023 
- HAYDEN WHOLESALE LIMITEDDissolved- 07059035 - Dissolved on 26 April 2011 
- HAYDEN THOMAS LIMITED- 07454159 - Incorporated on 29 November 2010 
- HAYDEN FOSTER LIMITED- 05881183 - Incorporated on 19 July 2006 
- HAYDEN PHYSIO LIMITED- 09779031 - Incorporated on 15 September 2015 
- HAYDEN SOLICITORS LTD- 08455031 - Incorporated on 21 March 2013 
- HAYDEN BLEST LIMITED- 14344641 - Incorporated on 8 September 2022 
- HAYDEN MOORES LIMITEDDisolved- 14613646 - Dissolved on 2 July 2024 
- HAYDEN FLOORING LTD- 15890194 - Incorporated on 11 August 2024 
- HAYDEN PROJECTS LIMITED- 16253398 - Incorporated on 14 February 2025 
- HAYDEN CONFORMITAS LTD- 16363245 - Incorporated on 3 April 2025 
- HAYDEN ECKHOFF LTDActive - Proposal to Strike off- 08215610 - Incorporated on 14 September 2012 
- HAYDEN RIGGING LTD.- 09105621 - Incorporated on 27 June 2014 
- HAYDEN MCMAHON LTD- 10849437 - Incorporated on 4 July 2017 
- HAYDEN CHILLED LTDDisolved- SC601033 - Dissolved on 21 June 2025 
- HAYDEN TRADING LTD- 14442343 - Incorporated on 25 October 2022 
- BRUCE SUTHERLAND INC.- 01384639 - Incorporated on 17 August 1978 
- SUBSTATION SOLUTIONS LIMITEDDissolved- 06941292 - Dissolved on 16 October 2012 
- K.G. MCCOLL AND COMPANY LIMITED- 01135945 - Incorporated on 25 September 1973 
- H & SR PROPERTIES LTDDisolved- 10097193 - Dissolved on 7 May 2024