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Person

Brian Charles Hartzer

Brian Charles Hartzer is a director of 1 company. Source: Companies House records.

Director at Quantium Health Limited

1 current role
2 previous roles
Served alongside 39 people

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Official record Companies House · updated 11th October 2026

Roles

3 roles across 3 organisations (1 current, 2 previous)

Current roles (1)

Quantium Health Limited
Director · 2026-present
Official record · Companies House

Source
Companies House
Organisation
Quantium Health Limited
Role
Director
Appointed
2026-06-11
Record reference
Company 14792421

Current

Previous roles (2)

Westpac Banking Corporation
Director · 2015-2019
Official record · Companies House

Source
Companies House
Organisation
Westpac Banking Corporation
Role
Director
Appointed
2015-02-02
Ended
2019-12-02
Record reference
Company FC000138

Previous
Coutts & Company
Director · 2010-2012
Official record · Companies House

Source
Companies House
Organisation
Coutts & Company
Role
Director
Appointed
2010-10-25
Ended
2012-06-15
Record reference
Company 00036695

Previous

Company roles, current and past, as filed at Companies House.

People Brian has served alongside

39 people across 3 organisations

Based on overlapping official board records. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.

Westpac Banking Corporation 16 people · 2015-present

Margaret Leone SealeServing together now · since 2019
Peter Stanley NashServing together now · since 2018
Nerida Frances CaesarServing together now · since 2017
Timothy Alexander Balfour HartinServing together now · since 2015
Peter Francis King2019
Steven John Harker2019
Rebecca Fui Yee Lim2016-2019
Craig William Dunn2015-2019
Catriona Alison Deans2015-2019
Elizabeth Blomfield Bryan2015-2016
Ewwn Graham Wolseley Crouch2015-2019
John Arthur2015-2016
Lindsay Philip Maxsted2015-2019
Peter John Oswin Hawkins2015-2019
Peter Ralph Marriott2015-2019
Robert George Elstone2015-2017

Quantium Health Limited 4 people · 2026-present

Adam John DriussiServing together now · since 2026
Barry SwartzbergServing together now · since 2026
Emile Johann StippServing together now · since 2026
Gregory SchneiderServing together now · since 2026

Coutts & Company 19 people · 1992-2012

Gavin Christopher Frost2011-2012
Gordon Francis Pell2010-2011
Home, David Alexander Cospatrick, the Earl of Home2010-2012
James Hedley Rawlingson2010-2011
Michael John Morley2010-2012
Nicholas Rory Tapner2010-2012
Sally Anne Doyle2010-2012
Hon Nicholas Assheton1999-2012 dates incomplete
Denis Marsden Child1997-2012 dates incomplete
Christopher Malcolm Horne1996-2012 dates incomplete
Sir David Burdett Money-Coutts1996-2012 dates incomplete
Carel Maurits Mosselmans1995-2012 dates incomplete
David Cameron Macdonald1995-2012 dates incomplete
Bernard Philip Horn1994-2012 dates incomplete
Roger Flemington1994-2012 dates incomplete
Michael Albemarle Bowes Lyon1993-2012 dates incomplete
Sir John Smith1993-2012 dates incomplete
Stuart Walter Marshall1993-2012 dates incomplete
Gerald Anthony Davies1992-2012 dates incomplete

Sources

Companies House: Officer appointments and resignations.
Edition: Register edition compiled 11th October 2026
Identity: Records are treated as the same person only where our identity-matching rules support it. Confirmed relationships are supported by the approved identity-matching evidence and rules. Likely relationships are supported by sufficient evidence to suggest the records concern the same individual, but are not established as confirmed; they are shown with the label “Likely the same person”. How people are matched

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