Hamish Tyrwhitt

Hamish Tyrwhitt

Corporate Officer/Principal at
The Institution of Engineers Australia

Net worth: 867 434 $ as of 2026-05-30

63 year
Industrial Services
Consumer Durables
Energy Minerals

Profile

Hamish Gordon Tyrwhitt currently works at Forum Mondial de L'Economie, as Governor-Infrastructure & Urbanisation Group, The Institution of Engineers Australia, as Member, and Hong Kong Institution of Engineers, as Member.
Mr. Tyrwhitt also formerly worked at Depa PLC, as Group Chief Executive Officer & Executive Director from 2016 to 2019, Asia Resource Minerals Ltd., as Chief Executive Officer & Non-Executive Director in 2015, CIMIC Group Ltd., as CEO, Non-Independent Executive Director & MD from 2011 to 2014, Arabtec Holding PJSC, as Group Chief Executive Officer from 2016 to 2019, Macmahon Holdings Ltd., as Independent Non-Executive Chairman from 2023 to 2025, Design Studio Group Ltd., as Non-Executive Director from 2016 to 2019, CPB Contractors Pty Ltd., as Managing Director from 2007 to 2013, PT Berau Coal Energy, as President Director-Designate in 2015, Jordan Wood Industries, as Non-Independent Non-Executive Director, Leighton Contractors (Asia) Ltd., as Managing Director in 2011, Leighton Asia Ltd., as Managing Director from 2007 to 2012, Leighton Contractors (Malaysia) Sdn.
Bhd., as Director & General Manager, Leighton Welspun Contractors Pvt Ltd., as Managing Director, PT Berau Coal, as President Director-Designate, Habtoor Leighton Group, as Director, The Leighton Group, Inc., as Project Manager, and John Holland Construction Pty Ltd., as Principal.
Mr. Tyrwhitt received his undergraduate degree from The University of Western Australia.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2025-10-23 1,199,605 ( 0.06% ) 867 434 $ 2026-05-30

Hamish Tyrwhitt active positions

CompaniesPositionStart
Corporate Officer/Principal -
Corporate Officer/Principal -
Corporate Officer/Principal -

Former positions of Hamish Tyrwhitt

CompaniesPositionEnd
MACMAHON HOLDINGS LIMITED Chairman 2025-10-23
ARABTEC HOLDING Chief Executive Officer 2019-05-14
DESIGN STUDIO GROUP LTD Director/Board Member 2019-05-07
ASIA RESOURCE MINERALS PLC Chief Executive Officer 2015-06-30
BERAU COAL ENERGY TBK PT Chief Executive Officer 2015-04-29
See the detail of Hamish Tyrwhitt's experience

Training of Hamish Tyrwhitt

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

61

1st degree connections

21

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies21

Consumer Durables

Industrial Services

Energy Minerals

Industrial Services

Energy Minerals

Consumer Durables

Energy Minerals

Commercial Services

Consumer Services

Industrial Services

Commercial Services

Commercial Services

Consumer Durables

Commercial Services

Industrial Services

Consumer Durables

Industrial Services

Industrial Services

John Holland Construction Pty Ltd.

Energy Minerals

Industrial Services

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