Mission
WINCHESTER THURSTON SCHOOL ENGAGES EACH STUDENT IN A CHALLENGING AND INSPIRING LEARNING PROCESS THAT DEVELOPS THE MIND, MOTIVATES THE PASSION TO ACHIEVE, AND CULTIVATES THE CHARACTER TO SERVE.
Public Charity
WINCHESTER THURSTON SCHOOL
WINCHESTER THURSTON SCHOOL, of PITTSBURGH, PA, is a Public Charity tracked in Imperigo's IRS 990 database. The 2025 filing shows $29.7M in revenue, $28.6M in expenses, $62.5M in total assets. 55 publicly reported grants to this organization, totaling roughly $2.1M, appear in IRS filings.
EIN: 251030691
PITTSBURGH, PA
Latest filing: 2025
Total Revenue$29.7M
Total Expenses$28.6M
Total Assets$62.5M
Grant Records55
Funding Total$2.1M
Filing Years2021–2025
Where $100 goes at Winchester Thurston School
How Winchester Thurston School divides every $100 it spends, from its own Form 990 filings, averaged across 9 years.
$71
Programs
the work itself
$26
Management
running the organization
$3
Fundraising
raising the next dollar
Inside the $71 for programs
$40
Institutional instruction and related activities to approximately 685 students in grades jr
$21
Financial aid to approximately 293 students
$10
Operation and maintenance of plant facilities
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.
Sample Grants Received
PA EITC GRANT EXPENSE FOR 2024-2025
$9,500
ENVIRONMENT, ANIMALS
$215,183
PENNSYLVANIA EITC SCHOLARSHIPS
$141,800
ELEMENTARY AND SECONDARY SCHOOLS
$41,327
For grant recipient's exempt purposes
$31,902
Showing up to 5 of 55 total records — full history available with membership.
Officers & Directors
VICE PRESIDENT
Abigail Robinson Foster
INTERIM ASSISTANT HEAD OF SCHOOL FOR TEACHING AND
Amanda Welsh
TRUSTEE
Andrew Santelli
TRUSTEE
Brandilyn Y Dumas
EMERITUS
Carole Oswald Markus
DIRECTOR OF UPPER SCHOOL
Dana Kooistra
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $29.7M | $28.6M | $62.5M |
| 2024 | $30.2M | $27.2M | $58.7M |
| 2023 | $25.4M | $24.5M | $54.4M |
| 2022 | $27.5M | $22.4M | $52.1M |
| 2021 | $24.0M | $21.8M | $52.3M |
Between 2021 and 2025, reported annual revenue grew from $24.0M to $29.7M (+24%), with total assets most recently reported at $62.5M.
Interactive year-over-year charts and full filing details available with membership.