THE EXPLORATORIUM

EIN: 941696494 501(c)(3) Arts, Culture & Humanities

SAN FRANCISCO, CA

Total Revenue
$63,991,919
Total Expenses
$67,798,808
Total Assets
$292,041,625
Net Assets
$244,728,586
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Financial Vulnerability Assessment (Tuckman-Chang)

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Financial Trends

Organization Details

Formation Year
1968
Legal Domicile
CA
Principal Officer
MARK BIERMAN
Phone
4155284444
Tax Period
2024-07-01 to 2025-06-30

THE EXPLORATORIUM, founded in 1968, is a mid-sized nonprofit in the Arts, Culture & Humanities sector that reported $64.0M in total revenue in fiscal year 2024. Net assets of $244.7M represent 46 months of operating reserves.

Mission

THE EXPLORATORIUM IS A PUBLIC LEARNING LABORATORY EXPLORING THE WORLD THROUGH SCIENCE, ART, AND HUMAN PERCEPTION.OUR MISSION IS TO CREATE INQUIRY-BASED EXPERIENCES THAT TRANSFORM LEARNING WORLDWIDE.OUR VISION IS A WORLD WHERE PEOPLE THINK FOR THEMSELVES AND CAN CONFIDENTLY ASK QUESTIONS, QUESTION ANSWERS, AND UNDERSTAND THE WORLD AROUND THEM.WE VALUE LIFELONG LEARNING AND TEACHING, CURIOSITY AND INQUIRY, OUR COMMUNITY, ITERATION AND EVIDENCE, INTEGRITY AND AUTHENTICITY, SUSTAINABILITY, AND INCLUSION AND RESPECT.

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Trantor Score

Financial Health Score (300–850) · Liquidity · Solvency · Sustainability · Efficiency

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Liquidity (40%) • Solvency (30%) • Sustainability (20%) • Efficiency (10%)

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Financial Overview (2024)

Revenue Breakdown

Contributions & Grants $27,618,230
Program Service Revenue $29,866,618
Investment Income $4,092,353
Other Revenue $2,414,718
TOTAL REVENUE $63,991,919

Expense Breakdown

Grants Paid $29,357
Salaries & Benefits $45,465,147
Fundraising Expenses $3,519,497
Program Expenses $51,907,282
Other Expenses $22,304,304
TOTAL EXPENSES $67,798,808

Year-over-Year Comparison

2024 2023 Change
Revenue $63,991,919 $66,629,029 0.0%
Expenses $67,798,808 $65,980,256 +0.0%
Net Income $-3,806,889 $648,773 -6.9%
Key Indicators
✗ Grants to Organizations ✓ Grants to Individuals ✓ Lobbying ✗ Political Activity ✓ Foreign Activities ✗ Donor Advised Fund ✓ Schedule B Required
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Financial Health Indicators

Comprehensive financial analysis: Altman Z-Score, liquidity, solvency, sustainability, efficiency, and growth metrics

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Liquidity & Cash Position

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Altman Z-Score • Liquidity Ratios • Solvency Analysis • Growth Indicators • Efficiency Metrics

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Governance

Voting Members
33
Independent Members
33
Employees
724
Volunteers
175

Governance Policies

✓ Conflict of Interest Policy
✓ Whistleblower Policy
✓ Document Retention Policy

Special Practices & Reported Activities

✗ Operated a School
✗ Operated a Hospital
✗ Provided First Class Travel
✗ Reported Conflict of Interest
✗ Reported Asset Diversion
✗ Excess Benefit Transaction
✗ Made Political Expenditures
✓ Engaged in Lobbying
✗ Operated Donor Advised Fund
✗ Maintained Art Collections
✗ Filed Form 720

Compensation of Officers, Directors & Key Employees

Total Officers
6
$1,131,525
Total Directors
39
$0
Key Employees
3
$970,739
Highest Compensated
5
reported
Name Title Hours/Week Role Reportable Comp Other Comp Total
WILLIAM BILL F MELLIN CHAIR 2.00
Officer Director
$0 $0 $0
MARTHA EHMANN CONTE VICE-CHAIR 2.00
Officer Director
$0 $0 $0
SHARON FLANAGAN SECRETARY 2.00
Officer Director
$0 $0 $0
KEVIN FOSTER TREASURER 2.00
Officer Director
$0 $0 $0
RAVIN AGRAWAL DIRECTOR (THRU 12/31/2024) 2.00
Director
$0 $0 $0
GENO ARMSTRONG DIRECTOR (THRU 4/1/2025) 2.00
Director
$0 $0 $0
DARREN BECHTEL DIRECTOR 2.00
Director
$0 $0 $0
GARY BENGIER DIRECTOR (THRU 12/31/2024) 2.00
Director
$0 $0 $0
LAMAR BUNTS DIRECTOR 2.00
Director
$0 $0 $0
JASON CHENG DIRECTOR 2.00
Director
$0 $0 $0
GEORGE W COGAN DIRECTOR 2.00
Director
$0 $0 $0
W BREWSTER ELY DIRECTOR 2.00
Director
$0 $0 $0
CHRIS FOSTER DIRECTOR 2.00
Director
$0 $0 $0
LYNN C FRITZ DIRECTOR 2.00
Director
$0 $0 $0
JOSIE HASPEL DIRECTOR 2.00
Director
$0 $0 $0
JONATHAN HEILIGER DIRECTOR 2.00
Director
$0 $0 $0
FRANCES HELLMAN DIRECTOR 2.00
Director
$0 $0 $0
GREGORY HUNTER DIRECTOR 2.00
Director
$0 $0 $0
MIMI ITO DIRECTOR (THRU 10/29/2024) 2.00
Director
$0 $0 $0
MICHAEL R JACOBSON DIRECTOR 2.00
Director
$0 $0 $0
JAMES JONES DIRECTOR 2.00
Director
$0 $0 $0
ROBERTA KATZ DIRECTOR 2.00
Director
$0 $0 $0
MARTIN LAUBER DIRECTOR 2.00
Director
$0 $0 $0
PHIL MARINEAU DIRECTOR 2.00
Director
$0 $0 $0
ALISON MAUZE DIRECTOR 2.00
Director
$0 $0 $0
MARY HOPE MH MCQUISTON DIRECTOR 2.00
Director
$0 $0 $0
KENNETH G MOORE DIRECTOR 2.00
Director
$0 $0 $0
REMY NTSHAYKOLO DIRECTOR (THRU 12/31/2024) 2.00
Director
$0 $0 $0
SAUL PERLMUTTER DIRECTOR 2.00
Director
$0 $0 $0
CAMERON PHLEGER DIRECTOR 2.00
Director
$0 $0 $0
ALBERT BERT RICHARDS DIRECTOR 2.00
Director
$0 $0 $0
VIJAY SHRIRAM DIRECTOR 2.00
Director
$0 $0 $0
CRAIG SILVERSTEIN DIRECTOR 2.00
Director
$0 $0 $0
RACHEL SKIFFER DIRECTOR 2.00
Director
$0 $0 $0
E PAYSON SKIP SMITH DIRECTOR 2.00
Director
$0 $0 $0
REMY WILKINSON DIRECTOR (THRU 8/11/2024) 2.00
Director
$0 $0 $0
ESTHER WOJCICKI DIRECTOR 2.00
Director
$0 $0 $0
JENNIFER VAN NATTA DIRECTOR 2.00
Director
$0 $0 $0
DAN YUE DIRECTOR 2.00
Director
$0 $0 $0
MARK BIERMAN EXEC DIRECTOR 37.50
Officer
$744,010 $26,984 $770,994
LAURA ZANDER CHIEF FINANCIAL OFFICER (THRU 6/30/2025) 37.50
Officer
$328,417 $32,114 $360,531
ROBERT SEMPER CHIEF LEARNING OFFICER 37.50
Key Emp
$355,605 $17,296 $372,901
BLAIR WINN CHIEF ADVANCEMENT OFFICER 37.50
Key Emp
$282,663 $25,282 $307,945
JASON PACELY CHIEF PEOPLE OFFICER 37.50
Key Emp
$240,149 $49,744 $289,893
JULIE NUNN CHIEF BRAND OFFICER 37.50
Highest
$246,545 $24,278 $270,823
THOMAS ROCKWELL CHIEF CREATIVE OFFICER 22.50
Highest
$178,365 $44,787 $223,152
ANNE RICHARDSON CHIEF EXPERIENCE OFFICER 37.50
Highest
$296,384 $22,831 $319,215
ANNE HOLMES CHIEF STRATEGY OFFICER 37.50
Highest
$237,632 $24,351 $261,983
JULIE YU PRINCIPAL SCIENTIST 37.50
Highest
$195,237 $23,598 $218,835
Note: Compensation data is self-reported by the organization on their Form 990. "Reportable Comp" includes salary, bonuses, and other reportable compensation from the organization and related organizations. "Other Comp" includes benefits, deferred compensation, and non-taxable benefits.

Historical Data

Year Revenue Expenses Assets Net Income
2025 $63,991,919 $67,798,808 $292,041,625 $-3,806,889
2024 $66,629,029 $65,980,256 $293,014,681 $648,773
2023 $61,024,177 $64,760,247 $284,732,614 $-3,736,070
2022 $79,571,391 $59,221,371 $275,042,102 $20,350,020
2021 $47,989,738 $46,912,545 $286,875,309 $1,077,193
2020 $48,557,720 $52,960,158 $264,783,310 $-4,402,438
2019 $96,372,343 $53,538,400 $269,815,117 $42,833,943
2018 $51,507,512 $52,933,431 $226,313,174 $-1,425,919
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