History of Deloitte in Australia

About Us

History of Deloitte Australia

Every business starts somewhere and Deloitte in Australia traces its history back to the 19th century.

Our heritage

The firm’s roots were originally established in 1891 when Yarwood Vane and Co opened for business. The accountancy firm consistently won work in Sydney and elsewhere to become a leading entrepreneurial business.

Almost 100 years later – and through multiple mergers including partner names such as Dulhunty Grant and Co, Irish Young and Outhwaite – the firm took the name Deloitte Haskins and Sells in 1980.

Significant milestones followed:

  • In 1989, Deloitte Haskins and Sells Australia became a member firm of Deloitte Ross Tohmatsu International and the Australian firm became known as Deloitte Ross Tohmatsu
  • In 1993 the partnership adopted the name Deloitte Touche Tohmatsu
  • In 1993 Deloitte Touche Tohmatsu merged with Duesburys, then the largest second-tier firm in Australia. This merger occurred in Sydney, Melbourne and Brisbane
  • In 1994 Deloitte Touche Tohmatsu merged with BDO Nelson Parkhill in Western Australia
  • In 2005 Deloitte Touche Tohmatsu merged with PKF in Adelaide, Darwin, Alice Springs and Katherine
  • In 1994 the firm merged with Haly and Co in Brisbane and Kidsons-DFK in Papua New Guinea
  • In 2006 mid-market accounting firm Horwarth's NSW joined the practice and today, we’re known as Deloitte Australia
  • In 2015, Cindy Hook made history when she became the first female CEO of a large professional services firm in Australia.
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