Patrick O’Brien

Chairman at MICRO-X LIMITED

Finance

Consumer Services

Health Technology

Profile

Patrick Gerard O’Brien currently works at Micro-X Ltd., as Chairman from 2025, Howjack Holdings Pty Ltd., as Chairman, Red Rock Leisure Pty Ltd., as Director, The Water & Carbon Group Pty Ltd., as Director from 2013, O'brien Capital Pty Ltd., as Director from 1999, and Patrick O’Brien & Associates Pty Ltd., as Managing Director.
Mr. O’Brien also formerly worked at Paywise Pty Ltd., as Chairman from 2019 to 2023 and Macquarie Group Ltd., as Senior Managing Director from 1996 to 2009.

Patrick O’Brien active positions

Companies	Position	Start
MICRO-X LIMITED	Chairman	2025-01-14
Red Rock Leisure Pty Ltd. Red Rock Leisure Pty Ltd. RestaurantsConsumer Services Operates bars and cafes	Director/Board Member	-
The Water & Carbon Group Pty Ltd. The Water & Carbon Group Pty Ltd. Engineering & ConstructionIndustrial Services Designs, builds and operates wastewater treatment & ecological infrastructure solutions	Director/Board Member	2013-06-30
O'brien Capital Pty Ltd.	Director/Board Member	1998-12-31
Patrick O’Brien & Associates Pty Ltd.	Chief Executive Officer	-
Howjack Holdings Pty Ltd.	Chairman	-

All active positions of Patrick O’Brien

Former positions of Patrick O’Brien

Companies	Position	End
Paywise Pty Ltd. Paywise Pty Ltd. Personnel ServicesCommercial Services Provides salary packaging solutions for public and private entities	Chairman	2023-03-31
MACQUARIE GROUP LIMITED	Chief Executive Officer	2008-12-31

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Experiences
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Linked companies

Private companies	8
Macquarie Group Ltd. Macquarie Group Ltd. Major BanksFinance Provides retail and business banking, asset & wealth management, capital, commodities and financing services	Finance
Red Rock Leisure Pty Ltd. Red Rock Leisure Pty Ltd. RestaurantsConsumer Services Operates bars and cafes	Consumer Services
Micro-X Ltd. Micro-X Ltd. Medical SpecialtiesHealth Technology Manufactures and designs X-ray products	Health Technology
The Water & Carbon Group Pty Ltd. The Water & Carbon Group Pty Ltd. Engineering & ConstructionIndustrial Services Designs, builds and operates wastewater treatment & ecological infrastructure solutions	Industrial Services
O'brien Capital Pty Ltd.
Patrick O’Brien & Associates Pty Ltd.
Paywise Pty Ltd. Paywise Pty Ltd. Personnel ServicesCommercial Services Provides salary packaging solutions for public and private entities	Commercial Services
Howjack Holdings Pty Ltd.