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Board of Trustees

Where students take their own path
Two upper school girls working together in the science lab using a microscope

The ZIS Board of Trustees is the guardian of the school's mission. It is the Board's responsibility to ensure that the mission is relevant and vital to the community it serves and to monitor the success of the school in fulfilling its mission.

Below are details of the ZIS Board of Trustees.

Carl Hollitscher

Carl Hollitscher
Chairman of the Board
Governance Committee

Carl Hollitscher is Austrian and Swiss and a ZIS parent. He works in asset management and joined the Board in 2020.

Noelle Ahlberg Kleiterp

Noelle Ahlberg Kleiterp
Board Secretary
Chair Governance Committee

Noelle Ahlberg Kleiterp is American and Dutch and a ZIS parent. She has experience in the finance sector and in consulting and joined the Board in 2021.

Essa Al Saleh

Essa Al-Saleh
Governance Committee

Essa Al-Saleh is Kuwaiti and American and a ZIS alumni and current parent.  He works in the logistics, strategy, advisory and investment areas and joined the Board in 2020.

Andreas Apitz

Andreas Apitz
Community Relations Committee

Andreas Apitz is Swiss and German and a ZIS parent. He works in an independent investment firm and joined the Board in 2022.

Isabel Amiro do Vale

Isabel Almiro do Vale
Chair Community Relations Committee

Isabel Almiro do Vale is Portuguese and British and is a ZIS Parent. She works in the chemical industry as a strategy and marketing leader and joined the Board in 2018.

Chicco Di Stasi

Chicco di Stasi
Corporate/Community 
Partnerships Committee

Chicco di Stasi is Italian and a ZIS parent. He works in banking and joined the Board in 2020.

Mariana Grigorian

Mariana Grigorian
Board Vice-Chair
Corporate/Community Partnerships Committee

Mariana Grigorian is Spanish and Armenian and a ZIS parent. She works in career guidance and joined the Board in 2020.

Alexandra Utterman

Alexandra Hallen Utterman
Governance Committee

Alexandra Hallen Utterman is American and a ZIS parent. She has experience in investment management and joined the Board in 2017.

Gijs Hilgers

Gijs Hilgers
Chair Finance Committee

Gijs Hilgers is Dutch and a ZIS parent. He has experience in banking and joined the Board in 2021.

Lola Kinder

Lola Kinder
Corporate/Community Partnerships Committee

Lola Kinder is Swiss and a ZIS parent. She works in the pharmaceutical industry and joined the Board in 2022.

Suzanne Rapetti-Hunsicker

Suzanne E. Rapetti-Hunsicker
Finance Committee

Suzanne E. Rapetti-Hunsicker is American and Swiss, a AISZ (ZIS) alumna and alumni parent. She is a partner in a project management and consulting company and joined the Board in 2019.

Claudia Liftschitz

Claudia Scheiner
Community Relations Committee

Claudia Scheiner is Swiss and a ZIS parent. She is a mediator and a justice of the peace and joined the Board in 2017.

Jonathan Toretta

Jonathan Toretta
Community Relations Committee

Jonathan Toretta is Swiss and American and a ZIS parent. He works in the science and technology sector and joined the Board in 2021.

Lemeng Zhang

Lemeng Zhang
Chair Corporate/Community Partnerships Committee
Finance Committee

Lemeng Zhang is Chinese and a ZIS parent. She has experience in consulting and investment management and joined the Board in 2017.