Sid Myer is the Chairman of the Myer Family Investments, the Myer family’s private investment company with a diversified portfolio of assets across most local and international asset classes. Previously, Sid was the CEO of the Yulgilbar Group of Companies with operating interests in agriculture, property investments and equity and debt portfolios invested locally and internationally.​
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Sid is currently Chairman of the National Portrait Gallery Australia Foundation, trustee of the Estate of Sidney Myer, and a trustee of the Sidney Myer Fund, and a director of Copia Investment Partners. In his former community roles, he has been directors of organisations such as Asialink and Asialink Business, St Catherine’s School, the Foundation for Rural and Regional Renewal, Zoos Victoria and Zoos Victoria Foundation, the Australian Thailand Institute.​
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In August 2008 he received an honour from President Friends of Indonesia and in 2011 he became a Member of the Order of Australia.​