Charter Schools Development Center (CSDC) 2026 Conference Charter Schools Development Center (CSDC) 2026 Conference

Hilary Harmssen

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Principal
JOAN Collaborative


Hilary Harmssen is a senior nonprofit leader with over 20 years of experience supporting charter schools and public education systems. At KIPP Northern California, she served as Chief External Impact Officer, leading communications, policy, fundraising, and community engagement for a network of high-performing charter schools. She built strong relationships with district authorizers, aligned stakeholders, and advanced equitable student outcomes. Earlier, at CCSA, Hilary led statewide efforts supporting hundreds of charter and district schools through advocacy, coalition-building, and strategic planning. She brings deep expertise in stakeholder engagement, governance, and navigating complex education environments.

LinkedIn: https://www.linkedin.com/in/hilary-joy-harmssen/

Sessions

Strong relationships with charter school authorizers are critical to a school's long-term success an…

Filling seats in today's charter school landscape requires more than a great school; it demands a st…