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LONGVIEW PHILANTHROPY USA INC

EIN 93-2664730 CLAYMONT, DE

Largest nonprofits in Delaware

Revenue 2025
$21,167,086
Expenses 2025
$15,612,226

Program services were 92.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
T05
Classification
1200
Street
2093 PHILADELPHIA PIKE 7230

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2025

Mission

WE EXIST TO MOVE AS MUCH IMPACT-ADJUSTED MONEY AS POSSIBLE TO THOSE WORKING TO REDUCE CATASTROPHIC AND EXISTENTIAL RISKS. IN PRACTICE, WE PROMOTE EFFECTIVE PHILANTHROPY THAT REDUCES THE RISK OF A MAJOR GLOBAL CATASTROPHE THROUGH THREE MAIN TYPES OF ACTIVITIES: ADVISING, GRANTMAKING, AND EVENTS.

  • GRANTMAKING - GRANTS FROM VARIOUS INTERNAL FUNDS TO HELP FURTHER THE ORGANIZATION'S MISSION.

    Expenses $13,283,347 · Grants $12,599,230

  • ADVISING - OFFER DONOR EDUCATION, GRANT RECOMMENDATIONS, AND GRANT OUTCOME REPORTING TO HIGH-NET-WORTH PHILANTHROPISTS.

    Expenses $823,953

  • EVENTS - BRINGING TOGETHER MAJOR PHILANTHROPISTS, ACADEMICS, INDUSTRY LEADERS, PUBLIC INTELLECTUALS, POLICYMAKERS, AND OTHERS TO FOSTER AN ECOSYSTEM OF THOUGHTFUL PEOPLE WORKING FOR POSITIVE CHANGE.

    Expenses $347,644

As filed on the 2025 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Ben Millwood

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Justin Rockefeller

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Tyler Whitmer

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Natalie Cargill

    PRESIDENT

    Total calculated
    $126,809
    From this org
    $98,922
    From related orgs
    $0
    Other
    $27,887
    Hours/week
    40

  • Andrew Player

    TREASURER & SECRETARY, HEAD OF GRANTS MANAGEMENT

    Total calculated
    $176,019
    From this org
    $130,554
    From related orgs
    $0
    Other
    $45,465
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $130,554
    Bonus
    $0
    Other
    $0
    Deferred
    $12,758
    Nontaxable benefits
    $32,707
    Filer's total
    $176,019

  • Carl Alexander Robichaud

    NUCLEAR WEAPONS PROGRAM DIRECTOR

    Total calculated
    $267,440
    From this org
    $186,481
    From related orgs
    $0
    Other
    $80,959
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $186,481
    Bonus
    $0
    Other
    $0
    Deferred
    $18,594
    Nontaxable benefits
    $62,365
    Filer's total
    $267,440

  • Matthew Gentzel

    NUCLEAR WEAPONS POLICY PROGRAM OFFICER

    Total calculated
    $218,130
    From this org
    $172,922
    From related orgs
    $0
    Other
    $45,208
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $172,922
    Bonus
    $0
    Other
    $0
    Deferred
    $16,664
    Nontaxable benefits
    $28,544
    Filer's total
    $218,130

  • Aidan O'Gara

    CHIEF COMMUNICATIONS OFFICER

    Total calculated
    $237,529
    From this org
    $199,039
    From related orgs
    $0
    Other
    $38,490
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $199,039
    Bonus
    $0
    Other
    $0
    Deferred
    $18,842
    Nontaxable benefits
    $19,648
    Filer's total
    $237,529

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $21,167,086
    Expenses
    $15,612,226
    Contributions
    $20,927,481
    Grants paid
    $12,599,230
  • 2024
    Revenue
    $10,007,719
    Expenses
    $3,269,897
    Contributions
    $9,999,060
    Grants paid
    $1,347,842

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Form 990-N e-Postcard, tax year 2023

Tax period
1 January 2023 to 31 December 2023
Principal officer
Andrew Player
Mailing address
2093 Philadelphia Pike Suite 7230Claymont DE 19703
Website
https://www.longview.org/

As filed, from the IRS e-Postcard file of 2 November 2026. The IRS publishes only each organization's most recent postcard, so earlier years are not shown. A 990-N carries no financial detail. The postcard also gives the principal officer's address, which is not shown here.

Grants made

The 10 largest by cash amount. The API serves every itemized grant.

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.