Administrators
- Edward P. Hardiman, Ph.D., Headmaster
- Keith A. Crowley, Ph.D., Principal/Associate Head of School
- Stacy Banos, Assistant Principal for Academics, Grades 9 and 10
- Kevin Collins, Chief Advancement Officer
- Cynthia R. Fanikos, Chief Financial Officer/Chief Operations Officer
- Jim Frackleton, Assistant Head of School for Marketing and Communications
- Kerry Gallagher, J.D., Assistant Principal for Teaching and Learning
- Jason Larocque, Associate Principal for Grades 6, 7 and 8/Middle School Director
- Mark McManmon, Ed.D., Assistant Principal for Academics, Grades 11 and 12
- Wendy Olson, Assistant Principal for Student Life
- Michael Orlando, Ed.D. '02, Assistant Principal for Mission and Identity
- Jameson Pelkey, Athletic Director
- Raisa Carrasco-Velez, Director of Multicultural Affairs and Community Development
- Gianna Voccola, Assistant Head of School for Enrollment Management
Trustees
- Paul J. Nasser P'13, Board Chair: CFO/COO, Intercontinental Real Estate Corp.
- Jeffrey Kaneb '82 P'14, Vice Chair: Executive Vice President, HP Hood, Inc.
- Edward P. Hardiman, Ph.D. P'19 '21 '26 Headmaster
- Paul G. Barker, Ed.D., President, Our Lady of Good Counsel High School
- Kevin T. Bottomley P'02, Director, People's United Financial, Inc.
- Jay Burke '82 P'13, Head of Fidelity Fund and Investment Operations, Fidelity Management & Research Company
- Kevin B. Churchwell, M.D. P'15 '17, President and Chief Operating Officer, Boston Children's Hospital
- Kathleen Colin, Executive Director of Sponsorship for the Sisters of Notre Dame de Namur, US East-West Province
- Michael Cusack P'16, Co-Chief Operating Officer, Alliant Specialty Group
- Matthew J. Cushing '88 P'25, VP, Chief Commercial Officer & General Counsel, Pegasystems, Inc.
- Jonathan DeSimone '88 P'16 '18, Chief Executive Officer Designate, Alcentra
- Kevin Dwan '92, Portfolio Manager, MFS Investment Management
- Julie Everett P'18, Vice President of Finance, The Crosby Company of NH
- Mark R. Gudaitis '84, Managing Director, Atlantic Trust
- Thomas L. Guidi '70 P'97 '09, Retired Partner, Hemenway & Barnes, LLP
- James Hoefner, President, TEK Stainless Piping Product
- Jonathan Lewis '86, Partner, Debevoise & Plimpton LLP
- Michael C. Mason, Ph.D., Assistant Chair, Liberal Arts Department, Berklee College of Music
- Taidgh McClory '93, Founder and Social Impact Entrepreneur
- Stuart Meurer P'18 '21, President, Windover Construction
- Carmen R. Monks '83 P'23 '25, Managing Director-UHNW Sales, Citigroup Private Bank
- Richard Montoni '69, Vice Chairman of the Board MAXIMUS
- Katherine O'Dair, Ph.D., Dean of Students, Harvard College
- Timothy M. Tully Jr. P'14 '19, Principal, Autumn Wind LLC
- Christine Zampell P'00, Zampell Companies