Hybrid Learning Transition



Dr. Ralph Maurer, Head of School

Dr. Ralph Maurer assumed the role of Head of School on July 1, 2018. He joined Oxbridge in January 2018 as Head of School-Elect.

Before joining Oxbridge, Dr. Maurer served as the headmaster of The International School Nido de Aguilas, an independent English-language international day school (Pre-K through 12) in Santiago, Chile. He is a regular contributor to the global discussion regarding innovation in independent schools, presenting at the National Association of Independent Schools (NAIS) annual conference and participating in the NAIS Institute for New Heads.

Prior, Dr. Maurer was a faculty member and administrator at the Freeman School of Business at Tulane University, where he led the entrepreneurship curriculum. While at Tulane, Dr. Maurer served as the founding executive director of the New Orleans Startup Fund, raising more than $4 million in investment capital to help rebuild the city after Hurricane Katrina. Additionally, he was a co-founder of the consulting firm EMH Strategy. At EMH, he and his partners developed strategic, financial, operational, and feasibility plans for educational institutions, including the Emeril Lagasse Foundation.

Dr. Maurer was raised in Gainesville, where both his parents taught at the University of Florida. He is a graduate of Phillips Exeter Academy. He earned a Bachelor of Science degree in communications studies from Northwestern University, a Master of Business Administration from the University of Florida, and a Ph.D. in management science and engineering from Stanford University. He lives in West Palm Beach with his wife, Dr. Meg Butler, a classical archeologist, and their son.



Courtney Portlock, Assistant Head of School

Mrs. Courtney Portlock assumed her role as Assistant Head of School on July 1, 2020. 
Mrs. Portlock brings more than 10 years of administrative experience in independent schools. She most recently held the position of director of the National Center for Girls' Leadership at Stuart Country Day School in Princeton, New Jersey, where she previously served as both the head of upper school and assistant head of upper school. During her time at Stuart she has kept her hand in the classroom, teaching courses in math and leadership. Prior to her tenure at Stuart Country Day, she was the director of diversity and community life at The Episcopal Academy in Newtown Square, Pennsylvania. Mrs. Portlock began her career at Episcopal teaching math, literature, diversity awareness courses, and coaching dance. Before this she spent three years in the finance and technology sectors with The Vanguard Group and MICRO E.D.S.
Mrs. Portlock is a passionate advocate for education that fosters leadership and facilitates meaningful inquiry. She has presented nationally on topics related to leadership, diversity, equity and inclusion, and women in STEM. She has served as a guest lecturer, co-teacher, and panelist for the University of Pennsylvania Graduate School of Education, and is highly involved in the national conversations regarding how independent schools can become continually better, and more accessible places of learning. 
Mrs. Portlock earned a B.S. in mathematics from the University of Pittsburgh, and a M.S.Ed. In school leadership from the University of Pennsylvania. She is currently a doctoral student at the University of Pennsylvania Graduate School of Education, and a graduate of Germantown Friends School in Philadelphia. 

Contact Us

Dr. Ralph Maurer
Head of School

Courtney Portlock
Assistant Head of School

Sam Cruz
Vice President & Chief Financial Officer

Rebecca De Jesús
Controller & Director of Finance

Scott Siegfried
Director of Advancement

Stan Ross
Dean of Students

Dr. Ann Masterman
Director of Admission

Zoë Losada
Interim Director of College Counseling

Pat Houlihan
Director of Athletics

Lisa Toth
Director of Transportation and School Events

Brandon Murray
IT Director

Molly Miller
Assistant Director of Development

Lisa Murphy
Director of Communications