Nonprofit · EIN 46-3745686
WILLIAM LOUIS-DREYFUS FOUNDATION
Tax-exempt · WILTON, CT 06897
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990-PF | -$629,117 | $2,052,857 | -$2,681,974 | $25,658,804 | $103,354 | $25,555,450 |
| August 31, 2024 | 990-PF | $520,362 | $2,449,705 | -$1,929,343 | $28,480,167 | $242,743 | $28,237,424 |
| August 31, 2023 | 990-PF | $532,718 | $1,619,721 | -$1,087,003 | $30,341,957 | $170,190 | $30,171,767 |
Financial details: 990-PF for the year ended August 31, 2025
Revenue
- Dividends
- $24,668
- Interest
- $324,796
- Net gain from sales of assets
- -$978,581
Expenses
- Grants and similar amounts paid
- $1,172,500
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $236,000
- Disbursements for charitable purposes
- $1,923,307
- Excise tax on investment income
- $4,855
Balance sheet and other
- Total assets, start of year
- $28,480,167
- Total assets, end of year
- $25,658,804
- Total liabilities, end of year
- $103,354
- Net assets, end of year
- $25,555,450
- Fair market value of assets
- $26,382,800
- Qualifying distributions
- $1,923,307
- Net investment income
- $349,464
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-PF for the year ended August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JEFF GILMAN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | PRESIDENT | 3 | $0 |
| JULIA HALL C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| PHOEBE LOUIS-DREYFUS C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| ROBERT L COSTELLO C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.13 | $0 |
| VINCENT CUONO C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | SECRETARY & TREASURER | 5 | $0 |
| PATRICK B FENN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| YOJI NIMURA C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | CHIEF INVESTMENT OFFICER | 1 | $0 |
| TOM WINGERTZAHN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | CHIEF FINANCIAL OFFICER | 1 | $0 |
| AVAILABLE UPON REQUEST C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | ART CURATOR Highest-paid employee | 40 | $0 |
| AVAILABLE UPON REQUEST C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | ART REGISTRAR Highest-paid employee | 40 | $0 |
990-PF for the year ended August 31, 2024: 10 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JEFF GILMAN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | PRESIDENT | 3 | $0 |
| JULIA HALL C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| PHOEBE LOUIS-DREYFUS C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| ROBERT L COSTELLO C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.13 | $0 |
| VINCENT CUONO C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | SECRETARY & TREASURER | 5 | $0 |
| PATRICK B FENN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| YOJI NIMURA C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | CHIEF INVESTMENT OFFICER | 1 | $0 |
| TOM WINGERTZAHN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | CHIEF FINANCIAL OFFICER | 1 | $0 |
| AVAILABLE UPON REQUEST C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | ART CURATOR Highest-paid employee | 40 | $0 |
| AVAILABLE UPON REQUEST C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | ART REGISTRAR Highest-paid employee | 40 | $0 |
990-PF for the year ended August 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JEFF GILMAN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | PRESIDENT | 3 | $0 |
| JULIA HALL C/O AVERY AND GREIG LLP 2811, WILSHIRE BLVD 700, SANTA MONICA, CA 90403 | DIRECTOR | 0.25 | $0 |
| PHOEBE LOUIS-DREYFUS C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | DIRECTOR | 0.25 | $0 |
| ROBERT L COSTELLO 5738 CHEENA DRIVE, HOUSTON, TX 770965924 | DIRECTOR | 0.13 | $0 |
| VINCENT CUONO C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | SECRETARY & TREASURER | 5 | $0 |
| PATRICK B FENN C/O AKIN GUMP STRAUSS HAUER FELD, LLC ONE BRYANT PARK, NEW YORK, NY 10036 | DIRECTOR | 0.25 | $0 |
| YOJI NIMURA C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | CHIEF INVESTMENT OFFICER | 1 | $0 |
| TOM WINGERTZAHN C/O LOUIS DREYFUS FAMILY OFFICE LLC, PO BOX 690, WILTON, CT 06897 | CHIEF FINANCIAL OFFICER | 1 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 690, WILTON, CT 06897-0690
- In care of
- % DEBBIE NEFF
- Signed the 990-PF
- TOM WINGERTZAHN, CHIEF FINANCIAL OFFICER
- Phone
- (203) 762-6134
- Website
- WLDFOUNDATION.ORG
- Return prepared by
- CBIZ ADVISORS LLC
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990-PF on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990-PF on file |
IRS record
- EIN
- 46-3745686
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private operating foundation
- Donations deductible (Pub 78)
- Private operating foundation, 50% limit
- Exempt since
- 2016
- Accounting year ends
- August
- Files
- Form 990-PF
- Category (NTEE)
- Arts, culture and humanities (A51)
- Assets (IRS master file)
- $25,658,804
- Income (IRS master file)
- $2,429,657
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | August 2025 | -$629,117 | $2,052,857 | $25,658,804 | XML |
| 990-PF | August 2024 | $520,362 | $2,449,705 | $28,480,167 | XML |
| 990-PF | August 2023 | $532,718 | $1,619,721 | $30,341,957 | XML |
| 990-PF | August 2022 | – | – | – | IRS |
| 990-PF | August 2021 | – | – | – | IRS |
| 990-PF | August 2020 | – | – | – | 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 46-3745686).
Questions about WILLIAM LOUIS-DREYFUS FOUNDATION
- What is the EIN of WILLIAM LOUIS-DREYFUS FOUNDATION?
- The employer identification number (EIN) of WILLIAM LOUIS-DREYFUS FOUNDATION is 46-3745686.
- Is WILLIAM LOUIS-DREYFUS FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2016.
- Are donations to WILLIAM LOUIS-DREYFUS FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private operating foundation, 50% limit).
- Which annual return does WILLIAM LOUIS-DREYFUS FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of WILLIAM LOUIS-DREYFUS FOUNDATION due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did WILLIAM LOUIS-DREYFUS FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended August 2025.
- Who are the officers and directors of WILLIAM LOUIS-DREYFUS FOUNDATION?
- The 990-PF for the year ended August 31, 2025 lists 10 people; 0 received compensation from the organization.
- How much revenue does WILLIAM LOUIS-DREYFUS FOUNDATION have?
- On its 990-PF for the year ended August 31, 2025 it reported revenue of -$629,117, expenses of $2,052,857 and total assets of $25,658,804 at year end.
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