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US nonprofit · EIN 522139122 · Washington, DCiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 522139122) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

21st Century School Fund Inc

Donations deductible
Revenue
$550k
year to 31 December 2025
Expenses
$693k
year to 31 December 2025
Total assets
$168k
$38k liabilities
Net assets
$130k
assets less liabilities
Directors and trustees
5
1.4 years on average
Staff
5
employees, year to 31 December 2025
Left since last filing
0
no seats appear to have opened
Officers and senior staff
7
named in Part VII
Exemption recognised again: the IRS automatically revoked this organisation’s exemption on 15 May 2024, and its IRS ruling date is now 1 December 2024 (a later recognition). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.
How am I connected?

21st Century School Fund Inc's network

5 peoplei5 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (5). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

5 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 4 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Jerry RosemanTrustee2025
1 yr
Mary FilardoExecutive Dir.2025
1 yr
Sarah WoodheadTrustee2025
1 yr
Sean O'DonnellDirector2025
1 yr
Will PerkinsTrustee2025
1 yr
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

7 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Ariel BierbaumBoard Membersince 2019
Jerry RosemanBoard member2020
Jael Anker-LagosTreasurersince 2018
Mary FilardoExec Director/CEOsince 2018
Marni AllenChairperson2018
Mildred MusgroveCompany secretarysince 2018
Sarah WooheadBoard Member2019

Pay and hours

year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Mary FilardoExecutive Dir.50$124k
Sean O'donnellDirector40$100k
Sarah WoodheadTrustee2$0
Jerry RosemanTrustee2$0
Will PerkinsTrustee2$0

About

Legal name
21st Century School Fund Inc
EIN
522139122
Address
1816 12th St Nw, Washington, DC, 20009-4422
State
District of Columbia
Mission
The 21st century school fund 21csf was founded on the premise that communities are responsible for creating healthy, safe, and educationally appropriate learning environments for their children. The mission of 21csf is to build the public will and capacity to improve public school facilities. (as filed on the Form 990)
Activity (NTEE)
S99 Community improvement and capacity building
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Community Improvement & Capacity Building
Size band
4 (IRS master file code)
Formed
1999
Principal officer
Mary Filardo (as named on the Form 990)
IRS ruling date
1 December 2024
Status
Code 01 (unconditional exemption)
Form 990 filings on record
3, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥1years on the filingsJerry Roseman
≥1years on the filingsMary Filardo
≥1years on the filingsSarah Woodhead
≥1years on the filingsSean O'Donnell

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$168k
Total liabilities
$38k
Net assets or fund balances
$130k
Contributions and grants received
$6k
Program service revenue
$544k
Employees
5

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
21st Century School Fund likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: DC Department of Licensing and Consumer Protection (DLCP), corporate registrations (opendata.dc.gov). Licence: CC BY 4.0. Attribution: DC DLCP. Data last fetched 18 October 2026.
State
District of Columbia
Entity type
Domestic Nonprofit Corporation
Status
Active - In Good Standing
Formed
13 January 1999
Registered agent
Mary Filardo (city and state not held)