How Callisto Works

Callisto is an online sexual assault reporting system designed to create a more empowering reporting experience for survivors. It has shown to improve reporting and outcomes for student survivors of sexual assault. It provides three options:


Save time-stamped records of an assault


Survivors wait an average of 11 months to report their assault to authorities


Report electronically to campus authorities


Less than 10% of survivors will ever report their assault


Report only if another survivor names the same perpetrator


Up to 90% of assaults are committed by repeat perpetrators

Callisto provides survivors with a confidential and secure way to create a time-stamped record of an assault and report electronically to campus authorities. It gives survivors the option to report their perpetrator only if someone else names the same assailant. This matching system is the first of its kind, and it means that survivors who want to protect their community from repeat perpetrators can do so together.

It was hard to imagine coming forward in an immediately public way, but to start by chronicling what had occurred would have been a helpful and important first step.
― Anonymous, Male Survivor of Sexual Assault

Our Partners

We partner with campuses dedicated to preventing sexual assault, supporting survivors, and holding perpetrators accountable.

University of San Francisco

Founding Institution

Pomona College

Founding Institution

Central College

Coe College

Canisius College

St. John's University

Hobart and William Smith Colleges

Stanford University

University of Denver

Loyola Marymount University

University of Southern California

University of Oregon

Being a Callisto Campus means that we take sexual assault prevention and response seriously.
― Callisto Campus Administrator

Our Supporters

Callisto has an incredible community of donors and volunteers whose contributions make our work possible.

They include:

New York Women's Foundation

Levi Strauss Foundation

NoVo Foundation

New York State Health Foundation

PIMCO Foundation

Fast Forward

The Harnisch Foundation

Callisto has also had over 600 individual donors contribute to our work. Many are survivors or allies of survivors who care deeply about Callisto and the impact it has on the lives of those who have experienced sexual assault.

Marrying technology, empowerment and systems change, Callisto delivers a potent solution to promote access to justice for survivors of gender-based violence. The Levi Strauss Foundation is excited about its tremendous potential
― Daniel Lee, Executive Director of Levi Strauss Foundation

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