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US nonprofit · EIN 112656357 · Oakland, CAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 112656357) - 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 tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.State registers Colorado Secretary of State (17 October 2026).Licence US Federal Government public domain.How we handle data

The National Center for Science Education Inc

Donations deductible
Revenue
$2.5m
year to 31 December 2025
Expenses
$1.5m
year to 31 December 2025
Total assets
$4m
$135k liabilities
Net assets
$3.9m
assets less liabilities
Directors and trustees
13
4.5y av
Staff
12
10 volunteers
Left since last filing
3
23% of the board
Officers and senior staff
5
named in Part VII
How am I connected?

The National Center for Science Education Inc's network

13 people2 organisationsi13 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Violet dotted lines (2) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

13 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 in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 12 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Amanda TownleyExecutive Dir.2024
2 yrs
Astrid BroertjesCFO2024
2 yrs
Emily SimsDirector2024
2 yrs
Jo HandelsmanDirector2022
4 yrs
Joseph GravesDirector2021
5 yrs
Kenneth Miller DirectorPresident2018
8 yrs
Marshall ShepherdDirector2024
2 yrs
Maya GarciaDirector2022
4 yrs
Michael Haas DirectorTreasurer2019
7 yrs
Michael LubicDirector2019
7 yrs
Michael MannDirector2020
6 yrs
Prosanta ChakrabartyDirector2024
2 yrs
Sarah George DirectorCompany secretary2024
2 yrs
Under 5 years5 to 6 years6 years or moreShow all 13 →

Officers and senior leadership

5 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Amanda TownleyExecutive Dir.2023
Ann ReidExecutive Dir.2019
Astrid Broertjes OperDirectorsince 2022
Glenn BranchDeputy Directorsince 2023
Rae Holzman OperationsDirectorsince 2018

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
Amanda TownleyExecutive Dir.40$176k$9k
Glenn BranchDeputy Director40$129k$21k
Paul OhCommunications Dir40$114k$11k
Astrid BroertjesCFO40$74k$21k
Kenneth Miller DirectorPresident0.5$0
Michael Haas DirectorTreasurer0.5$0
Sarah George DirectorSecretary0.5$0
Prosanta ChakrabartyDirector0.5$0
Fouad Abd-el-KhalickDirector0.5$0
Joseph GravesDirector0.5$0
Maya GarciaDirector0.5$0
Leonardo BanchikDirector0.5$0
Prosanta ChakrabartyDirector0.5$0
Marshall ShepherdDirector0.5$0
Emily SimsDirector0.5$0
Tom MattzieDirector0.5$0
Eric RothschildDirector0.5$0

Colorado roster

14 listediOfficers, directors and trustees from the latest filing with the Colorado Secretary of State (document 20263029627). Titles are as filed; some entries are registered agents or custodians of records rather than board members. Source: data.colorado.gov, public domain.
NameTitle as filed
Sarah GeorgeDirector
Amanda TownleyExecutive Director
Maya GarciaDirector
Glenn BranchDeputy Director
Astrid Broertjes
Michael HaasTreasurer
Miller KennethPresident
Kenneth MillerBoard President
Michael LubicDirector
Marshall SheperdBoard Member
Emily SimsBoard Member
Astrid BroertjesDirector of Operations
Joseph GravesDirector
Prosanta ChakrabartyBoard Member

About

Legal name
The National Center for Science Education Inc
EIN
112656357
Address
230 Grand Avenue, Oakland, CA, 94610-4589
State
California
Mission
The National Center for Science Education NCSE is a not-for-profit organization that helps ensure students across the country receive an accurate and effective evolution and climate science education. We do this by supporting teachers with resources and best teaching practices by monitoring and mobilizing against efforts to undermine science education, whether at the statehouse or in the... (as filed on the Form 990)
Activity (NTEE)
U50Z Science and technology research
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Science & Technology
Size band
6 (IRS master file code)
Formed
1983
Principal officer
Amanda Townley (as named on the Form 990)
IRS ruling date
1 November 1983
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsKenneth Miller Director
≥7years on the filingsMichael Haas Director
≥7years on the filingsMichael Lubic
≥6years on the filingsMichael Mann

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
$4m
Total liabilities
$135k
Net assets or fund balances
$3.9m
Contributions and grants received
$2.3m
Program service revenue
$0
Employees
12
Volunteers
10

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$1.3m$1.6mDeficit $254k

As filed on the IRS Form 990. US dollars.

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.
National Center for Science Education, Inc. 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: Colorado Secretary of State (CDOS), business entities (data.colorado.gov 4ykn-tg5h). Licence: public domain. Data last fetched 18 October 2026.
State
Colorado
Entity type
nonprofit corporation
Status
Good Standing
Formed
10 November 2021
Registered agent
National Center for Science Education, Inc. (city and state not held)

This register does not publish officers or directors.