Head of School's Office
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Sarah Pelmas
Interim Head of School
Sarah Pelmas
Sarah Pelmas is serving as Beaver’s Interim Head of School for the 2025–26 academic year. She brings more than 25 years of experience in independent schools as a teacher, leader, and innovator.
She spent nearly a decade as Head of School at The Winsor School and has held leadership roles at National Cathedral School in Washington, D.C., and San Francisco University High School, where she began her career as an Upper School English teacher.
A former Beaver parent (Class of 2025!), Sarah knows and loves the Beaver community. She brings warmth, energy, and a collaborative spirit to the role as she leads the school forward.
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Zaira Santiago
Associate Head of School for Special Projects
Zaira Santiago
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Kathy Tarnoff
Executive Assistant to the Head of School