Skip to content
Nonprofiteer
← All organizations

BERKLEY FOUNDATION FOR HISTORICAL BOOKS AND DOCUMENTS

EIN 99-5033731 GREENWICH, CT

Browse the largest nonprofits in Connecticut

Revenue 2024
$100,005,000
Expenses 2024
$0

As filed

Subsection
03
NTEE code
T23
Classification
1000
Street
475 STEAMBOAT RD

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).

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • William R Berkley

    DIRECTOR, PRESIDENT & TREASURER

    Total calculated
    $0
    Hours/week
    0.5
  • William R Berkley Jr

    DIRECTOR, SECRETARY

    Total calculated
    $0
    Hours/week
    0.5
  • Marjorie Berkley

    DIRECTOR, EXECUTIVE VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    0.5
  • Kelly O'Donnell

    VICE PRESIDENT & ASSISTANT SECRETARY

    Total calculated
    $0
    Hours/week
    0.5

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. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $100,005,000
    Expenses
    $0
    Contributions
    $100,005,000
    Grants paid
    $0

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.

Grants paid

From Part XV of the 2024 Form 990-PF , the newest this foundation filed that we hold.

No grants paid are itemized in Part XV of this return.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

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 POF.

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 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.