Nonprofit · EIN 94-1429538
SAN FRANCISCO ZOOLOGICAL SOCIETY
Tax-exempt · SAN FRANCISCO, CA 94132
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $23,127,512 | $29,726,366 | -$6,598,854 | $19,954,512 | $5,406,248 | $14,548,264 |
| June 30, 2024 | 990 | $25,512,249 | $26,714,244 | -$1,201,995 | $24,465,668 | $4,405,935 | $20,059,733 |
| June 30, 2023 | 990 | $22,451,713 | $24,696,357 | -$2,244,644 | $23,812,552 | $3,960,498 | $19,852,054 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $7,817,981
- of which government grants
- $4,045,000
- Program service revenue
- $14,029,744
- Investment income
- $995,635
- Net rental income
- $300,000
- Net gain from sales of assets
- $5,960
- Net income from fundraising events
- -$15,848
- Other revenue
- $284,152
Expenses
- Grants and similar amounts paid
- $1,804,834
- Compensation of officers, directors and key employees
- $637,239
- Other salaries and wages
- $9,953,904
- Salaries, compensation and benefits (total)
- $13,972,057
- Professional fundraising fees
- $0
- Legal fees
- $237,226
- Accounting fees
- $68,104
- Occupancy
- $4,626,671
- Travel
- $66,563
- Depreciation
- $110,110
- Program services (functional)
- $25,533,318
- Management and general (functional)
- $3,568,038
- Fundraising (functional)
- $625,010
Balance sheet and other
- Total assets, start of year
- $24,465,668
- Total assets, end of year
- $19,954,512
- Total liabilities, end of year
- $5,406,248
- Net assets, end of year
- $14,548,264
- Land, buildings and equipment
- $563,934
- Publicly traded securities
- $14,825,758
- Net assets without donor restrictions
- $9,240,619
- Net assets with donor restrictions
- $5,307,645
- Gross receipts
- $29,755,227
- Employees
- 259
- Volunteers
- 212
- Year formed
- 1954
- State of legal domicile
- CA
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 for the year ended June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| TANYA PETERSON | CEO & EXECUTIVE DIRECTOR Officer | 37.5 | $351,000 | $45,597 |
| JEFFREY PACE | CHIEF FINANCIAL OFFICER Officer | 37.5 | $225,770 | $14,872 |
| DOMINICK DORSA | EVP OF ANIMAL CARE & WELLNESS Highest-paid employee | 37.5 | $170,404 | $21,511 |
| PAULO VERGARA | EVP OF GUEST CONNECTIONS Highest-paid employee | 37.5 | $160,385 | $21,010 |
| ADRIAN MUTLOW | CHIEF VETERINARIAN Highest-paid employee | 37.5 | $157,015 | $7,851 |
| VITUS LEUNG | EVP OF HR/DEPUTY DIRECTOR Highest-paid employee | 37.5 | $136,123 | $6,806 |
| TAE NHO | VICE PRESIDENT OF TECHNOLOGY Highest-paid employee | 37.5 | $127,400 | $6,370 |
| MARIE-CLAUDE NADEAU | CHAIRMAN OF THE BOARD Trustee or director, Officer | 3 | $0 | $0 |
| JOHN PATRICK FLYNN | VICE CHAIR Trustee or director | 1 | $0 | $0 |
| JOSHUA ADLER | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| EDWIN ALVAREZ MD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| WILLIAM ANDERECK | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ELIZABETH BEATTY | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| KERRY DEICHEN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MATTHEW DELJA | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
15 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MIKE DOVEY | DIRECTOR Trustee or director | 0.5 | $0 |
| CHRISTOPHER FARINACCI | DIRECTOR Trustee or director | 0.5 | $0 |
| ANTOINETTE FREITAS-KRAJCAR | DIRECTOR Trustee or director | 0.5 | $0 |
| JANIE FRIEND | DIRECTOR Trustee or director | 0.5 | $0 |
| SARAH GAMMILL | DIRECTOR Trustee or director | 0.5 | $0 |
| SIDNEY GOODWILL | DIRECTOR Trustee or director | 0.5 | $0 |
| MARGARET HAUBEN | DIRECTOR Trustee or director | 0.5 | $0 |
| JULIA LW HEIDMANN | DIRECTOR Trustee or director | 0.5 | $0 |
| MELINDA HENDERSON | DIRECTOR Trustee or director | 0.5 | $0 |
| DOUGLAS MAGOWAN | DIRECTOR Trustee or director | 0.5 | $0 |
| JOAN MURPHY | DIRECTOR Trustee or director | 1 | $0 |
| MARK ROBERTS | DIRECTOR Trustee or director | 0.5 | $0 |
| DAVID THOMASON | DIRECTOR Trustee or director | 0.5 | $0 |
| KEVIN XU | DIRECTOR Trustee or director | 0.5 | $0 |
| MARIA ALVAREZ | DIRECTOR Trustee or director | 0.5 | $0 |
990 for the year ended June 30, 2024: 49 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| TANYA PETERSON | CEO & EXECUTIVE DIRECTOR Officer | 37.5 | $320,000 | $41,290 |
| TIMOTHY WU | EVP OF PHILANTHROPY Highest-paid employee | 37.5 | $212,308 | $21,976 |
| VITUS LEUNG | EVP OF HR/DEPUTY DIRECTOR Highest-paid employee | 37.5 | $202,400 | $10,120 |
| VINCENT GRUBBS | CHIEF FINANCIAL OFFICER THRU 03/24 Officer | 37.5 | $184,230 | $17,732 |
| PAULO VERGARA | EVP OF GUEST SERVICES & GUEST CONNECTIONS Highest-paid employee | 37.5 | $145,000 | $14,382 |
| SUSAN ROE | DIRECTOR OF ADVANCEMENT Highest-paid employee | 37.5 | $125,000 | $17,611 |
| DOMINICK DORSA | EVP OF ANIMAL CARE & WELLNESS Highest-paid employee | 37.5 | $121,616 | $17,442 |
| JEFF PACE | CFO AS OF 05/24 Officer | 37.5 | $26,019 | $1,894 |
| MELINDA EISENHUT-DUNN | CHAIRMAN OF THE BOARD Trustee or director, Officer | 3 | $0 | $0 |
| JOSHUA S ADLER MD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARIA ALVAREZ | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| EDWIN ALVAREZ MD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| WILLIAM ANDERECK | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ELENA M ASTURIAS | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ELIZABETH BEATTY | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ALEX BECKMAN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| VERONICA BELL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ROSEMARY BOCCIO JOCHIM | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| T BRADFORD CANFIELD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| KERRY DEICHEN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MATTHEW DELJA | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ALEXANDER P DOLL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MIKE DOVEY | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| DONNA EGAN KAMPSCHUUR | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| JOHN PATRICK FLYNN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ANTOINETTE FREITAS-KRAJCAR | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| JANIE FRIEND | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| SARAH GAMMILL | DIRECTOR Trustee or director | 1 | $0 | $0 |
| SIDNEY GOODWILL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARGARET HAUBEN | DIRECTOR Trustee or director | 1 | $0 | $0 |
| JULIA LW HEIDMANN | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MELINDA HENDERSON | DIRECTOR Trustee or director | 1 | $0 | $0 |
| NICOLE LAMPSA HSUEH | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MICHAEL D KAHN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| REMY KLEIN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| LYNNE LONGMIRE | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| DOUGLAS MAGOWAN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| KELLY PHAIR MCCARTHY | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MATTHEW MILLER | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| JOAN MURPHY | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MARIE-CLAUDE NADEAU | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| EDWARD A OATES | DIRECTOR Trustee or director | 1 | $0 | $0 |
| EDWARD POOLE | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARK ROBERTS | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| SARAH A SCHOELLKOPF PHD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARY SUTTON | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| DAVID THOMASON | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| KEVIN XU | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| CHARLEY ZECHES | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
990 for the year ended June 30, 2023: 42 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| TANYA PETERSON | CEO & EXECUTIVE DIRECTOR Officer | 37.5 | $320,000 | $38,897 |
| VINCENT GRUBBS | CHIEF FINANCIAL OFFICER Officer | 37.5 | $210,000 | $20,908 |
| TIMOTHY WU | EXECUTIVE VICE PRESIDENT OF PHILANTHROPY Highest-paid employee | 37.5 | $200,000 | $20,408 |
| VITUS LEUNG | EXECUTIVE VP OF HR/DEPUTY DIRECTOR Highest-paid employee | 37.5 | $201,477 | $10,074 |
| DIANA BOON | MEDICAL DIRECTOR/ ANIMAL WELLNESS Highest-paid employee | 37.5 | $139,423 | $12,918 |
| SUSAN ROE | DIRECTOR OF DEVELOPMENT Highest-paid employee | 37.5 | $125,000 | $16,658 |
| ROBIN WU | VP OF EDUCATION & COMMUNITY ENGAGEMENT Highest-paid employee | 37.5 | $110,000 | $15,908 |
| EDWARD POOLE | CHAIRMAN OF THE BOARD Trustee or director, Officer | 3 | $0 | $0 |
| JOSHUA S ADLER MD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARIA ALVAREZ | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| WILLIAM ANDERECK | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ELENA M ASTURIAS | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ROSEMARY BAKER | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ALEX BECKMAN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| VERONICA BELL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| T BRADFORD CANFIELD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MATTHEW COOK | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ALEXANDER P DOLL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MIKE DOVEY | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MELINDA EISENHUT-DUNN | DIRECTOR Trustee or director | 1 | $0 | $0 |
| JOHN PATRICK FLYNN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| ANTOINETTE FREITAS-KRAJCAR | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| JANIE FRIEND | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| SARAH GAMMILL | DIRECTOR Trustee or director | 1 | $0 | $0 |
| SIDNEY GOODWILL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARGARET HAUBEN | DIRECTOR Trustee or director | 1 | $0 | $0 |
| JULIA LW HEIDMANN | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MELINDA HENDERSON | DIRECTOR Trustee or director | 1 | $0 | $0 |
| NICOLE LAMPSA HSUEH | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MICHAEL D KAHN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| DONNA EGAN KAMPSCHUUR | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MELISSA MA | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| DOUGLAS MAGOWAN | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| KELLY PHAIR MCCARTHY | DIRECTOR Trustee or director | 1 | $0 | $0 |
| JOAN MURPHY | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MARIE-CLAUDE NADEAU | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| EDWARD A OATES | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MARK ROBERTS | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| SARAH A SCHOELLKOPF PHD | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| MARY SUTTON | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| DAVID THOMASON | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| CHARLEY ZECHES | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 1 ZOO RD, SAN FRANCISCO, CA 94132-1027
- Principal officer (990 for 2024)
- CASSANDRA COSTELLO, 1 ZOO ROAD, SAN FRANCISCO, CA 94132
- Signed the 990
- JEFF PACE, CFO
- Phone
- (415) 753-7175
- Website
- WWW.SFZOO.ORG
- Return prepared by
- GILBERT CPAS
California records
California keeps its own records of charities and corporations. Search them by EIN 94-1429538 or by the name SAN FRANCISCO ZOOLOGICAL SOCIETY.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
TO CONNECT ALL PEOPLE WITH WILDLIFE, INSPIRE CARING FOR NATURE, AND ADVANCE CONSERVATION ACTION.
Program accomplishments
- GENERAL PUBLIC SERVICE: FOOD, MERCHANDISE, RIDES, AND PARKING. THE SAN FRANCISCO ZOO SERVES HUNDREDS OF THOUSANDS OF VISITORS ANNUALLY AND IS OPEN TO THE PUBLIC 365 DAYS A YEAR. THE FACILITY IS LOCATED ON 90 ACRES ON THE EDGE OF THE PACIFIC OCEAN IN THE CITY OF SAN FRANCISCO.Expenses $1,292,343 · revenue $3,205,110
- MEMBERSHIP SERVICES, ADMISSIONS, EDUCATIONAL PROGRAMS, AND PUBLICATIONS: EDUCATIONAL PROGRAMS AND SERVICES INCLUDING DOCENT-GUIDED TOURS, ADULT AND YOUTH VOLUNTEER PROGRAMS, ZOO CAMP, CHILDREN'S AND ADULT CLASSES, OVERNIGHTS, CONSERVATION LECTURE SERIES, ZOO MOBILE, WILDLIFE THEATRE PRESENTATIONS, AND TEACHER RESOURCES.Expenses $5,740,892 · revenue $11,124,634
- ANIMAL AND BOTANICAL COLLECTIONS: THE SAN FRANCISCO ZOO IS HOME TO THOUSANDS OF ENGANGERED AND RESCUED ANIMALS COMPRISED OF SPECIES FROM AROUND THE WORLD. THE ZOO PARTICIPATES IN CONSERVATION PROGRAMS AIMED AT PROTECTING AND SAVING ENDANGERED ANIMALS. THE ZOO MAINTAINS GARDENS SHOWCASING A VARIETY OF PLANT SPECIES.Expenses $18,500,083 · grants $1,804,834
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 94-1429538
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1956
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Animal-related (D500)
- Assets (IRS master file)
- $19,954,512
- Income (IRS master file)
- $29,755,227
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $23,127,512 | $29,726,366 | $19,954,512 | XML |
| 990 | June 2024 | $25,512,249 | $26,714,244 | $24,465,668 | IRS |
| 990 | June 2023 | $22,451,713 | $24,696,357 | $23,812,552 | XML |
| 990 | June 2022 | $36,024,993 | $26,338,435 | $23,753,003 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | IRS |
| 990 | June 2018 | – | – | – | 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 94-1429538).
Questions about SAN FRANCISCO ZOOLOGICAL SOCIETY
- What is the EIN of SAN FRANCISCO ZOOLOGICAL SOCIETY?
- The employer identification number (EIN) of SAN FRANCISCO ZOOLOGICAL SOCIETY is 94-1429538.
- Is SAN FRANCISCO ZOOLOGICAL SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1956.
- Are donations to SAN FRANCISCO ZOOLOGICAL SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SAN FRANCISCO ZOOLOGICAL SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of SAN FRANCISCO ZOOLOGICAL SOCIETY due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SAN FRANCISCO ZOOLOGICAL SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of SAN FRANCISCO ZOOLOGICAL SOCIETY?
- The 990 for the year ended June 30, 2025 names CASSANDRA COSTELLO.
- Who are the officers and directors of SAN FRANCISCO ZOOLOGICAL SOCIETY?
- The 990 for the year ended June 30, 2025 lists 30 people; 7 received compensation from the organization, the highest $351,000 (TANYA PETERSON, CEO & EXECUTIVE DIRECTOR).
- How much revenue does SAN FRANCISCO ZOOLOGICAL SOCIETY have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $23,127,512, expenses of $29,726,366 and total assets of $19,954,512 at year end.
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- SAN FRANCISCO SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS EIN 94-0836580 · last filed 990 for 2025
- CALIFORNIA TROUT EIN 23-7097680 · last filed 990 for 2025
- WILDAID INC EIN 20-3644441 · last filed 990 for 2025
- MUTTVILLE EIN 26-0416747 · last filed 990 for 2024
- GREATER FARALLONES ASSOCIATION EIN 94-3227237 · last filed 990 for 2025
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All nonprofits in SAN FRANCISCO · California · Animal-related