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HACKLEY SCHOOL
TARRYTOWN, NY · EIN 131740452 · Form 990 · FY2024 · NTEE E200 · Health Care · Very Large (>$50M) · hackleyschool.org
revenue
$71.2M
expenses
$62.0M
net assets
$278.6M
employees
407
volunteers
746
program ratio
86%
mission · from form 990

THE SCHOOL IS AN INDEPENDENT CO-ED COLLEGE PREPARATORY SCHOOL SERVING GRADES K THROUGH 12.

profile · synthesized from sources

Hackley School is an independent co-educational college preparatory school serving students in grades K through 12 on a 285-acre campus in Tarrytown, New York. The school emphasizes character, scholarship, and personal growth through a rigorous academic curriculum, arts, athletics, and experiential learning. It offers need-based financial aid and extracurricular support to ensure access for students from diverse backgrounds.

irs program accomplishments · form 990 part iii · fy2024

What they reported doing

  1. #1 primary $552K
    AUXILIARY ACTIVITIES INCLUDES SERVICES INDIRECTLY RELATED TO INSTRUCTION SUCH AS STUDENT ACTIVITIES EXPENSES, MUSIC INSTITUTE, DRIVERS EDUCATION, ETC., AS WELL AS SUMMER PROGRAMS.
named programs · 5 · from sources

What they call their work

5-Day Boarding Program
Boarding option for Upper School students, allowing them to reside on campus during the week and return home on weekends.
Financial Aid Program
Need-based financial aid program that supports students in grades K-12, determined through Clarity application and family financial assessment.
Hackley Extracurricular Support
Program providing financial aid recipients with reduced rates and funding for academic and extracurricular activities, including trips, tutoring, and cultural exchange programs.
Music Institute
Instructional and performance program offering music education and enrichment opportunities for students and community members.
Summer Programs
Annual summer programs for students, including academic enrichment and recreational activities, part of auxiliary activities.
activities · 13 groups

What they do

  • Structured Student Enrollment Process 1 activity
    • Administer competitive admissions process for K–12 enrollment
      Manages a structured admissions process requiring preliminary applications, supporting documents (transcripts, recommendations, standardized test scores), and ISEE/SSAT exams for applicants to Grades 5–11, with decisions released via an online portal on set dates.
  • Independent and Charter K-12 Schools 1 activity
    • Deliver K–12 education with small class sizes and individualized support
      Provides comprehensive college preparatory education to 860 students from Kindergarten through Grade 12 on a 285-acre campus, maintaining an average class size of 16 and a student-teacher ratio of approximately 6:1 to foster independent thinking and lifelong success.
  • Campus Construction and Renovation Projects 1 activity
    • Develop and maintain educational facilities and campus infrastructure
      Has constructed and maintains key campus facilities including the Allen Center for the Creative Arts and Technology (completed in 2024), the Walter C. Johnson Center for Health and Wellness, Lower School, Middle School, Science Building, and over 200 acres of open space used for education and recreation.
  • Research and Scholarly Fellowship Support 1 activity
    • Facilitate independent research opportunities for students
      Offers independent research programs in English, history, and science that enable students to contribute to academic scholarship under faculty and expert mentorship.
  • Admissions and Enrollment Support Services 1 activity
    • Host admissions tours and information sessions for prospective families
      Conducts in-person and virtual information sessions and student-led campus tours throughout the year, including visits to major facilities such as the Allen Center for the Creative Arts and Technology and the Johnson Center for Health and Wellness, to engage prospective families.
  • Student Club and Organization Support 1 activity
    • Host speaker series and student club programs
      Organizes a speaker series that brings distinguished guests to campus to expand student perspectives and supports student clubs that promote leadership, personal growth, and engagement with social causes.
  • Onsite & Outreach Environmental Education Programs 1 activity
    • Offer experiential and outdoor education programs
      Provides experiential learning and outdoor education across 285 acres of campus featuring forest trails, orchard, apiary, open fields, and outdoor classrooms to support science education and holistic student development.
  • Summer Academic Enrichment Programs 1 activity
    • Operate summer programs and auxiliary educational services
      Runs summer programs and offers services indirectly related to instruction, including music institute, driver's education, and other student activities as part of its educational mission.
  • Community Space Provision 1 activity
    • Provide facilities rental supporting educational mission
      Offers facilities rental services as an auxiliary activity that supports the school’s broader educational goals and operations.
  • After-School Academic and Enrichment Programs 1 activity
    • Run Hudson Scholars enrichment program for local middle school students
      Operates Hudson Scholars, a tuition-free academic enrichment program for middle school students from Sleepy Hollow and Tarrytown focused on academic achievement, character development, and leadership.
  • Financial Aid and Scholarship Access Programs 1 activity
    • Support student participation in extracurricular activities through funding
      Provides financial support for extracurricular participation proportional to a student’s financial aid award, including up to $800 per year through the Extracurricular Fund for financial aid recipients.
  • Teacher Professional Development 1 activity
    • Train early-career teachers through Associate Teacher program
      Operates a teacher training program for Associate Teachers to develop instructional skills and prepare for roles as Lead Teachers, contributing to faculty development and educational capacity building.
  • Uncategorized 1 activity
    • Repurpose campus natural resources for educational and functional use
      Repurposed salvaged wood from the fallen Old Oak tree into functional campus artifacts such as a podium, desk, and benches, integrating sustainability and stewardship into campus culture.
financials · form 990 · fy2024
revenue
Total revenue$71.23M
Contributions & grants$15.94M22%
Program service revenue$49.06M69%
Investment income$5.23M7%
Other revenue$999K
expenses
Total expenses$61.97M
Program expenses86%
Admin / overhead10%
Fundraising4%
Salaries & benefits$32.67M
Grants paid out$9.23M
Largest expense lineCompensation
balance sheet
Total assets$308.69M
Cash$21.76M
Investments$99.86M
Liabilities$30.08M
Net assets$278.61M
Liquid reserves23.6 mo
6 years on record · 2019–2024 · YoY revenue +13.9%
leadership · form 990 part vii · fy2024

Who runs it

paid leadership · 8
NameTitleHours/wkCompensation
CHARLES FRANKLIN HEAD OF SCHOOL 50 $632K
MICHAEL WIRTZ HEAD OF SCHOOL (THRU 6/30/23) 0 $458K
ERIN BERNSTEIN CHIEF FINANCIAL OFFICER 40 $350K
JOHN P GANNON DIRECTOR OF DEVELOPMENT 40 $301K
ANDREW M KING DIRECTOR OF UPPER SCHOOL 40 $264K
CYNDY JEAN ASSOCIATE HEAD OF SCHOOL 40 $216K
ROBERT ALDRICH DIRECTOR OF OPERATIONS AND 40 $213K
LISA OBERSTEIN DIRECTOR OF LOWER SCHOOL 40 $209K
board members · 17
  • AMY WONG — TRUSTEE
  • CHRISTOPHER P BOGART — TRUSTEE
  • DANIEL E RIFKIN — TRUSTEE
  • DAVID I GLUCKMAN — TREASURER
  • DAWN N FITZPATRICK — TRUSTEE- (THRU 12/2024)
  • DOMINIQUE ALPUCHE — TRUSTEE - (FROM 02/2025)
  • ERIC B GYASI — SECRETARY
  • H RODGIN COHEN — TRUSTEE
  • HANNAH E SAUJET — TRUSTEE
  • HARVINDER SANDHU MD — PRESIDENT
  • JEFFERY A LIBERT — TRUSTEE
  • JOHN C CANONI — TRUSTEE
  • JOHN R TORELL IV — TRUSTEE
  • JUMAANE SAUNDERS — TRUSTEE
  • KAVEH KHOSROWSHAHI — VICE PRESIDENT
  • KEVIN KEARNS — TRUSTEE - (FROM 02/2025)
  • LINDA HOLDEN-BRYANT — TRUSTEE
relationships · 9

Who they work with

  • Barnard College Partner — Co-founded by Mrs. Frances Hackley, reflecting shared historical ties in education and women's advancement.
  • Charles Franklin Partner — Head of School who participates in admissions events and open houses.
  • Clarity Partner — Partner organization through which families submit financial aid applications
  • Hudson Scholars Partner — Tuition-free enrichment program run by Hackley School for middle schoolers from Sleepy Hollow and Tarrytown.
  • ISAAGNY Network — Follows the ISAAGNY Notification and Reply Date Calendar for admissions decisions and enrollment confirmations.
  • Lead Teachers Partner — Collaborative teaching partners who mentor Associate Teachers in the Lower School.
  • Local organizations and community groups Partner — Hackley partners with local organizations and community groups through campus rentals.
  • Manassas Industrial School for Colored Youth Government — Supported by Mrs. Frances Hackley, indicating historical engagement with institutions serving marginalized communities.
  • Sheila Hicks-Rotella Partner — Director of Enrollment Management at Hackley School, leading admissions outreach and engagement.
strategies · 5

How they approach the work

Named approaches extracted from this org’s sources. Where others share an approach, follow it to see the full set of orgs running it.

  • Experiential Environmental Education
    methodology: experiential-environmental-education
    By integrating the natural landscape and outdoor infrastructure into academic and co-curricular programming, Hackley deepens student learning because direct, nature-based experiences foster environmental stewardship and experiential understanding.
  • Inclusive Community as Educational Foundation
    methodology: inclusive-community-building
    By building an inclusive, diverse community grounded in mutual respect and interpersonal connection, Hackley enhances educational outcomes because students learn more effectively in environments where belonging, varied perspectives, and shared curiosity are prioritized.
  • Mentor-Based Education
    methodology: mentor-based education
    By training educators to serve as mentors, coaches, and role models, Hackley School fosters student exploration, risk-taking, and lifelong learning because strong relational support enhances character development and academic engagement.
  • Need-Based Financial Aid for Diversity and Equity
    methodology: need-based financial aid
    By providing need-based financial aid and proportionally aligning extracurricular support with tuition aid, Hackley ensures equitable access and builds a socioeconomically diverse student body because diversity of background enriches the educational experience for all students.
  • Whole-Child Holistic Development
    methodology: whole-child education
    By integrating academic, artistic, athletic, and character-based experiences through experiential and classroom-extending learning, Hackley nurtures independent thinking and compassionate leadership because holistic development produces more resilient, thoughtful individuals.