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Nonprofit · EIN 45-2656760

STRING THEORY SCHOOLS

Tax-exempt · PHILADELPHIA, PA 19102

Financials

$4.4M$4M2023$4.7M$4.3M2024
Revenue Expenses · by fiscal year end
Financials of STRING THEORY SCHOOLS by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$4,737,319$4,279,260$458,059$3,848,729$225,444$3,623,285
June 30, 2024990$4,373,844$4,010,055$363,789$3,395,921$230,695$3,165,226
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$6,400
Program service revenue
$4,602,000
Investment income
$81,646
Other revenue
$47,273

Expenses

Grants and similar amounts paid
$0
Other salaries and wages
$1,709,430
Salaries, compensation and benefits (total)
$2,318,030
Professional fundraising fees
$0
Legal fees
$139,937
Accounting fees
$16,450
Travel
$567
Depreciation
$12,918
Program services (functional)
$3,831,503
Management and general (functional)
$447,757

Balance sheet and other

Total assets, start of year
$3,395,921
Total assets, end of year
$3,848,729
Total liabilities, end of year
$225,444
Net assets, end of year
$3,623,285
Land, buildings and equipment
$23,646
Net assets without donor restrictions
$3,623,285
Gross receipts
$4,737,319
Employees
19
Volunteers
0
Year formed
2011
State of legal domicile
PA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
ANGELA COROSANITECEO
Officer
40$380,582$44,482
J JASON COROSANITECIO
Officer
20$140,224$41,545
MICHELLE FAULKNERDIRECTOR OF SPEC ED
Highest-paid employee
40$153,884$26,294
ALLISON HUSSEYPSYCHOLOGIST
Highest-paid employee
40$146,093$31,251
MATTHEW WASCODIRECTOR OF FACILITIES
Highest-paid employee
40$117,609$47,253
THAYNE DIBBLECOMPLIANCE MANAGER
Highest-paid employee
40$133,452$30,892
GREG BEIDLEMANDIRECTOR OF TECH
Highest-paid employee
40$129,237$34,696
ANGELINA DINADIRECTOR OF DATA MANAGEMENT
Highest-paid employee
40$115,400$37,070
MARY RITA D'ALESSANDROBOARD PRESIDENT
Trustee or director, Officer
2$0$0
FRANK GENTHERVICE PRESIDENT
Trustee or director, Officer
2$0$0
SANDRA MILLERSECRETARY
Trustee or director, Officer
2$0$0
KAREN RAEZERTREASURER
Trustee or director, Officer
2$0$0
990 for the year ended June 30, 2024: 16 people
NameTitleHours / weekCompensationOther / benefits
ANGELA COROSANITECEO
Officer
40$436,492$44,482
J JASON COROSANITECIO
Officer
40$254,559$41,545
ALLISON HUSSEYPSYCHOLOGIST
Highest-paid employee
40$144,429$29,988
MICHELLE FAULKNERDIRECTOR OF SPEC ED
Highest-paid employee
40$147,098$24,990
DANIELLE SHYLITDIRECTOR OF INNOVATION
Highest-paid employee
40$123,202$39,820
MATTHEW WASCODIRECTOR OF FACILITIES
Highest-paid employee
40$113,417$47,253
GREG BEIDLEMANDIRECTOR OF TECH
Highest-paid employee
40$124,325$32,505
THAYNE DIBBLECOMPLIANCE MANAGER
Highest-paid employee
40$123,633$29,666
DINA ANGELINADIRECTOR OF DATA MANAGEMEN
Highest-paid employee
40$106,209$34,622
THOMAS MOSCADIRECTOR OF TEACHING AND L
Highest-paid employee
40$107,871$3,879
MARY RITA D'ALESSANDROBOARD PRESIDENT
Trustee or director, Officer
2$0$0
SANDRA MILLERSECRETARY
Trustee or director, Officer
2$0$0
JOANN STIO RESIGNED 6242024TREASURER
Trustee or director, Officer
2$0$0
FRANK GENTHERBOARD MEMBER
Trustee or director, Officer
2$0$0
NORMAN BALCHUNAS RESIGNED 6242024BOARD MEMBER
Trustee or director
2$0$0
DAVID RAEZER RESIGNED 6242024BOARD MEMBER
Trustee or director
2$0$0

Address and contacts

Address (IRS master file)
1600 VINE ST 8TH FLOOR, PHILADELPHIA, PA 19102-1100
In care of
% GERALD SANTILLI
Principal officer (990 for 2024)
ANGELA COROSANITE, 1600 VINE STREET, PHILADELPHIA, PA 19102
Signed the 990
ANGELA COROSANITE, CEO
Phone
(856) 505-1300
Return prepared by
HAEFELE FLANAGAN & CO PC

Mission

PROVIDE STIMULATING CURRICULUM WITH AN INTERNATIONAL FOCUS, EMPHASIZING THE ARTS, LANGUAGES, IDEAS, AND HISTORIES, FROM AN ARRAY OF CULTURES

990 for the year ended June 30, 2025

Program accomplishments

  • THE PRIMARY MISSION OF STRING THEORY SCHOOLS IS TO PROVIDE AN INTELLECTUALLY STIMULATING CURRICULUM WITH AN INTERNATIONAL FOCUS, EMPHASIZING THE ARTS, LANGUAGES, IDEAS, AND HISTORIES, FROM AN ARRAY OF CULTURES FROM AROUND THE WORLD TO MEET ITS GOALS, THE SCHOOL DRAWS HEAVILY ON THE RESOURCES AVAILABLE IN PHILADELPHIA- THE MUSEUMS, HISTORIC LANDMARKS, BUSINESSES, SCHOOLS, PARKS, COMMUNITIES, AND FAMILIES
    Expenses $3,831,503 · revenue $4,608,400

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
45-2656760
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Donations deductible (Pub 78)
Supporting organization of unknown type
Exempt since
2014
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B900)
Assets (IRS master file)
$3,848,729
Income (IRS master file)
$4,737,319

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$4,737,319$4,279,260$3,848,729IRS
990June 2024$4,373,844$4,010,055$3,395,921IRS
990June 2023$4,139,575$3,774,842$2,995,732IRS
990June 2022$3,922,429$4,491,778$2,668,571IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 45-2656760).

Questions about STRING THEORY SCHOOLS

What is the EIN of STRING THEORY SCHOOLS?
The employer identification number (EIN) of STRING THEORY SCHOOLS is 45-2656760.
Is STRING THEORY SCHOOLS tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
Are donations to STRING THEORY SCHOOLS tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does STRING THEORY SCHOOLS file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of STRING THEORY SCHOOLS due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did STRING THEORY SCHOOLS last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of STRING THEORY SCHOOLS?
The 990 for the year ended June 30, 2025 names ANGELA COROSANITE.
Who are the officers and directors of STRING THEORY SCHOOLS?
The 990 for the year ended June 30, 2025 lists 12 people; 8 received compensation from the organization, the highest $380,582 (ANGELA COROSANITE, CEO).
How much revenue does STRING THEORY SCHOOLS have?
On its 990 for the year ended June 30, 2025 it reported revenue of $4,737,319, expenses of $4,279,260 and total assets of $3,848,729 at year end.

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