People
John Amussen

John Amussen

Controller/Business Manager

Marlborough School

Los Angeles, CA

John Amussen has over three decades of experience as a financial executive in Los Angeles. He spent nearly two decades in film industry finance, working for Columbia Pictures, Paramount Pictures and 20th Century Fox. In 2015, he transitioned to independent school finance, taking the position of chief operating & financial officer at Milken Community Schools in Los Angeles. In 2019 Amussen joined Marlborough as their Controller and Business Office Manager. He was born in New York City, attended high school in Minneapolis and received an A.B. in American Civilization from Brown University. He holds an MBA from the Anderson School of Business at UCLA.

Online Courses

Past Webinars

  • The Fine Art of Handling Conflict for Business Officers This item is protected

    December 5, 2025
    This webinar will equip attendees with practical strategies to navigate disputes with clarity and confidence, and offers actionable insights on handling complaints and resolving conflict in ways that foster collaboration and strengthen relationships.
  • Tuition, Trends, Trouble: What College Closures Signal for Independent Schools This item is protected

    November 21, 2025
    Explore financial sustainability for independent schools by analyzing college closures. Learn strategies to navigate risks and build resilience based on what may be gleaned from higher ed’s warning signs.
  • Small School, Big Solutions: Navigating Mission, Money and Innovation This item is protected

    November 7, 2025
    The financial reality of a school can deeply inform its mission. Discover how a small school's inherent need for innovation sparks powerful, scalable solutions for schools of all sizes to be nimble when resources are limited.
  • Durable Campus Planning: Aligning Vision with Strategic Purpose This item is protected

    October 24, 2025
    Learn how The Governor’s Academy aligned educational priorities with campus development in a new campus planning process that engaged the school community. The resulting plan now guides the adaptive reuse of facilities and enhanced academic programs.
  • Cyber Breach Breakdown: Risk Mitigation Tactics for Independent K-12 Schools This item is protected

    September 26, 2025
    82% of K-12 schools have experienced a cyber incident. This webinar equips business and technology leaders with practical tactics for cyber threat detection, response, and prevention, safeguarding their schools' financial and reputational integrity.

Net Assets Articles