Mission
TATNALL INSPIRES THE JOYFUL PURSUIT OF EXCELLENCE. WE VALUE CURIOSITY, WE FOSTER PERSEVERANCE, AND WE CULTIVATE CITIZENSHIP - ALL TO ENGAGE THE WORLD WITH COMMITMENT AND INTEGRITY.
Public Charity
THE TATNALL SCHOOL INC
THE TATNALL SCHOOL INC is a nonprofit organization categorized as Public Charity based in WILMINGTON, DE. Its most recent IRS filing (2025) reports revenue of $18.9M, expenses of $22.8M, total assets of $44.6M. Imperigo tracks 22 reported grant relationships connected to this organization totaling approximately $502K.
EIN: 510071443
WILMINGTON, DE
Elementary & Secondary Schools
NTEE: B20
Latest filing: 2025
Total Revenue$18.9M
Total Expenses$22.8M
Total Assets$44.6M
Grant Records22
Funding Total$502K
Filing Years2020–2025
Where $100 goes at The Tatnall School Inc
How The Tatnall School Inc divides every $100 it spends, from its own Form 990 filings, averaged across 7 years.
$82
Programs
the work itself
$16
Management
running the organization
$2
Fundraising
raising the next dollar
Inside the $82 for programs
$82
The organization conducts an educational institution which is co-educational for 520 students from pk3 through twelfth grade
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
SCHOLARSHIP
$15,000
EDUCATION
$15,100
SCHOLARSHIP
$15,000
GENERAL SUPPORT
$9,865
GENERAL SUPPORT
$9,865
Showing up to 5 of 22 total records — full history available with membership.
Officers & Directors
PRESIDENT
Abby Mrozinski
DIRECTOR OF ENROLLMENT
Alissa Mcgrisken
HEAD OF SCHOOL
Andrew Martire
VICE PRESIDENT
Bonnie Wu
HEAD OF MIDDLE SCHOOL
Brendan Minnihan
TRUSTEE
Caroline Mcilvain
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $18.9M | $22.8M | $44.6M |
| 2024 | $17.9M | $21.4M | $46.9M |
| 2023 | $18.9M | $20.2M | $48.3M |
| 2021 | $20.0M | $18.7M | $55.2M |
| 2020 | $17.9M | $18.4M | $49.9M |
Between 2020 and 2025, reported annual revenue grew from $17.9M to $18.9M (+6%), with total assets most recently reported at $44.6M.
Interactive year-over-year charts and full filing details available with membership.