Meet the team

The AO Trauma team is committed to the AO Foundation's mission and manages the day-to-day operations worldwide, supporting members and faculty and conducting innovative educational events worldwide.

AO Trauma Management


Tobias Huettl

Tobias Hüttl

Executive Director

Marilena Bonetti

Marilena Bonetti

Executive Assistant

Fabienne Heim

Fabienne Heim-Jenny

Project Coordinator Administration and Accounting

AO Trauma Education


Michael Redies

Michael Redies

Senior Global Education Manager

Bettina Bolliger

Bettina Bolliger

Senior Project Manager Educational Events

Anna Dönz

Anna Dönz

ORP Project Coordinator

Claudia Guentensperger

Claudia Güntensperger

Education Project Manager AO Courses

Jana Kamber

Jana Kamber

Project Coordinator Davos Courses

Silvia Liebing

Silvia Liebing

Fellowships

Kathrin Luessi

Kathrin Lüssi

Senior Project Manager Educational Projects

Barbara Niederee

Barbara Niederee

Project Manager Curriculum Implementation

Erna Perren

Erna Perren

Project Assistant Davos Courses

Esther Segessenmann

Esther Segessenmann

Education Commission Project Coordinator

Marlene Sieber

Marlene Sieber

ORP Project Coordinator

Marc Stal

Marc Stal

Project Manager Global Educational Events

Maria Berni

Maria Anisimova Berni

Project Manager Education

Iris Tobler

Iris Tobler

Project Coordinator Fellowships

Isabel van Rie

Isabel van Rie Richards

ORP Project Manager

AO Trauma Research


Philipp Buescher

Philipp Büscher

Research Manager

Tania Bosque

Tania Bosque

Project Assistant

AO Trauma community development


Christoph Volz

Christoph Volz

Community Development Manager

Rilana Buesching

Rilana Büsching

Community Development Project Coordinator

Sabine König

Sabine König

Project Manager Communications

Sylvia Hartog

Sylvia Hartog-Meisser

Membership & Int. Marketing Project Manager

AO Trauma Asia Pacific (AOTAP)


Isabella Wong

Isabella Wong

Regional Director AOTAP

Beatrice Mak

Beatrice Mak

Senior Project Manager

Jennifer Hung

Jennifer Hung

Project Manager

Cathy Yuen

Cathy Yuen

Project Assistant

AO Trauma Europe and Southern Africa (AOTESA)


Christoph Volz

Christoph Volz

Regional Director AOTESA

Felix Alonso

Felix Alonso

Project Manager Education AOTESA

Anja Sutter

Anja Sutter

Project Manager Education AOTESA

Nicola Bauer

Nicola Bauer

Project Assistant AOTESA

Bettina Bolliger

Bettina Bolliger

Project Manager European Masters Courses

George Clay

George Clay

General Secretary AO Trauma Germany

Larissa Welti

Larissa Welti

Project Manager Education AOTESA

Claudio Gubser

Claudio Gubser

Project Assistant Education AOTESA

AO Trauma Latin America (AOTLA)


Jaime Acosta

Jaime Acosta

Regional Director AOTLA

Juan Alzate

Education Coordinator

Nohelia Laiton Reyes

Accounting Assistant

Luz Angela Pardo Barrero

Education Coordinator

Maritza Virgüez Ortiz

Education Coordinator

AO Trauma Middle East and Northern Africa (AOTMENA)


Philipp Buescher

Philipp Büscher

Regional Director AOTMENA

Elena Gutierrez

Elena Gutierrez

Senior Education Project Manager AOTMENA

Alina Völkening

Project Assistant AOTMENA

Tania Bosque

Tania Bosque

Project Assistant

AO Trauma North America (AOTNA)


Steve Schwartz

Executive Director AOTNA

Andrea McClimon

Andrea McClimon

Regional Director AOTNA

Kelly McCormick

Kelly McCormick

Programs Manager (Fellowships and Research)

Lucy O’Hara

Lucy O’Hara

Education Development Manager

Steve Oliver AOTrauma North America

Steve Oliver

Digital Marketing Manager

Chitra Subramaniam

Chitra Subramaniam

Chief Learning Officer (Education)

AO Trauma voices

“It is an amazing experience working with the dedicated and passionate surgeons and ORPs from different countries with different cultures. I feel so fortunate that I can provide support to keep the AO spirit going.”

Isabella Wong (HK)

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