Public Charity

CHATHAM DAY SCHOOL

CHATHAM DAY SCHOOL is a Public Charity headquartered in CHATHAM, NJ. Financial data from the 2025 filing: $7.6M revenue, $7.2M expenses, $22.4M total assets. 28 publicly reported grants to this organization, totaling roughly $716K, appear in IRS filings.

EIN: 137100017 CHATHAM, NJ Education N.E.C. NTEE: B99 Latest filing: 2025
Total Revenue$7.6M
Total Expenses$7.2M
Total Assets$22.4M
Grant Records28
Funding Total$716K
Filing Years2021–2025

Mission

CHATHAM DAY SCHOOL CELEBRATES AND VALUES EACH CHILD AS A UNIQUE LEARNER WITH EXTRAORDINARY POTENTIAL. WE OFFER AN ACADEMICALLY AMBITIOUS PROGRAM THAT PROMOTES INTELLECTUAL ACHIEVEMENT AND EMOTIONAL GROWTH IN A DIVERSE AND NUTURING ENVIRONMENT.

Where $100 goes at Chatham Day School

How Chatham Day School divides every $100 it spends, from its own Form 990 filings, averaged across 9 years.

$78 Programs the work itself
$19 Management running the organization
$3 Fundraising raising the next dollar

Inside the $78 for programs

$78
A co-educational day school enrolling students in grades preschool through eighth grade
All program spending
Share on LinkedIn Share on Facebook
Add this to your website

Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.

Officers & Directors

TRUSTEE Abby Wellington
BOARD CHAIR Amy Kelley
TRUSTEE Ashish Parikh
TREASURER Daniel Mon
DIRECTOR OF FINANCE Dan Opperthauser
HEAD OF SCHOOL David Buffum

Officer compensation and complete director data available with membership.

Top Grant Purposes

General Support
$598,972 24 grants
Education
$107,000 3 grants
Unspecified
$10,000 1 grant

Financial Trends

Year Revenue Expenses Assets
2025 $7.6M $7.2M $22.4M
2024 $8.4M $6.8M $22.4M
2023 $7.1M $6.5M $20.8M
2022 $6.7M $5.8M $20.7M
2021 $6.2M $5.4M $20.6M

Between 2021 and 2025, reported annual revenue grew from $6.2M to $7.6M (+22%), with total assets most recently reported at $22.4M.

Interactive year-over-year charts and full filing details available with membership.

See the full picture for CHATHAM DAY SCHOOL

Complete financials, all 28 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 880,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports
7-day free trial Cancel any time