Skip to content
Nonprofiteer
← All organizations

NATUREBRIDGE

EIN 94-2145930 SAUSALITO, CA

Browse the largest nonprofits in California

Revenue 2024
$22,346,456
Expenses 2024
$20,969,540

Program services were 82.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
C60M
Classification
1200
Street
1033 FORT CRONKHITE

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 · 2024

Mission

TO CONNECT YOUNG PEOPLE TO THE WONDER AND SCIENCE OF THE NATURAL WORLD, IGNITING SELF-DISCOVERY AND INSPIRING STEWARDSHIP OF OUR PLANET.

Activities or mission (Part I)

CONNECTING YOUTH TO THE WONDER OF NATURE THROUGH OUTDOOR EDUCATION AT NATIONAL PARKS.

  • NATUREBRIDGE CONNECTS YOUNG PEOPLE TO THE WONDER AND SCIENCE OF THE NATURAL WORLD, IGNITING SELF-DISCOVERY AND INSPIRING STEWARDSHIP OF OUR PLANET. WE DELIVER HANDS-ON OUTDOOR EDUCATION PROGRAMS IN SOME OF THE WORLD'S MOST BEAUTIFUL CLASSROOMS-OUR NATIONAL PARKS. FOUNDED IN 1971, OUR CAMPUSES ARE LOCATED IN YOSEMITE NATIONAL PARK, GOLDEN GATE NATIONAL RECREATION AREA, OLYMPIC NATIONAL PARK, AND PRINCE WILLIAM FOREST PARK.NATUREBRIDGE'S SCHOOL & GROUP EDUCATION PROGRAMS TAKE YOUNG PEOPLE OUT OF THE CLASSROOM AND INTO THE OUTDOORS FOR MULTI-DAY IMMERSIVE EXPERIENCES, HELPING STUDENTS CREATE LASTING CONNECTIONS WITH THEMSELVES, THEIR PEERS, AND THE NATURAL WORLD. WITH CHILDREN IMMERSED IN THE OUTDOORS, SCIENTIFIC PRINCIPLES ARE BROUGHT TO LIFE AND INSPIRE BOTH IN-DEPTH LEARNING AND A LIFELONG CONNECTION TO NATURE. EACH PROGRAM IS CUSTOMIZED TO MEET INDIVIDUAL SCHOOL GROUPS' ACADEMIC NEEDS AND ALIGN WITH STATE/NATIONAL SCIENCE STANDARDS. OPTIONAL PRE- AND POST-PROGRAM CLASSROOM VISITS FROM NATUREBRIDGE EDUCATORS ENABLE TEACHERS TO DEEPEN THE IMPACT OF THE NATUREBRIDGE EXPERIENCE THROUGHOUT AND BEYOND THE ACADEMIC SCHOOL YEAR.NATUREBRIDGE PROVIDES OUTDOOR EDUCATION PROGRAMS TO A DIVERSE AUDIENCE INCLUDING K-12 TEACHERS, TEENS AND FAMILIES. WE ALSO WORK WITH LEADERS IN THE FIELD OF EDUCATION TO ADVANCE SCIENTIFIC AND SOCIAL EMOTIONAL LEARNING NATIONWIDE. AT THE HEART OF OUR WORK IS OUR EVIDENCE-BASED CORE EDUCATIONAL FRAMEWORK, WHICH COMPRISES THREE THEMES: SENSE OF PLACE, INTERCONNECTIONS AND STEWARDSHIP. USING THIS ONE-OF-A-KIND FRAMEWORK IN OUR RANGE OF PROGRAMS, NATUREBRIDGE REACHES OVER 35,000 INDIVIDUALS IN A TYPICAL YEAR AND HELPS GROW THE NEXT GENERATION OF ENVIRONMENTAL STEWARDS.

    Expenses $17,365,832 · Grants $1,181,680 · Revenue $17,978,178

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

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.

  • Liz Valentine

    CHAIR OF THE BOARD

    Total calculated
    $0
    Hours/week
    2
  • Susan Boren King

    CHAIR OF THE BOARD (THRU 5/10/25)

    Total calculated
    $0
    Hours/week
    2
  • Ananda Baron

    VICE CHAIR

    Total calculated
    $0
    Hours/week
    2
  • Shane Tackett

    TREASURER

    Total calculated
    $0
    Hours/week
    2
  • Linda Fisher

    SECRETARY

    Total calculated
    $0
    Hours/week
    2
  • Vera Michalchik

    VICE CHAIR FOR EDUCATION

    Total calculated
    $0
    Hours/week
    2
  • Anne W Baxter

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Auny Abegglen

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Autumn Saxton-Ross

    DIRECTOR (THRU 5/9/25)

    Total calculated
    $0
    Hours/week
    2
  • Brad O'Brien

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Carroll C Yandell

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Chris Joseph

    DIRECTOR (THRU 5/9/25)

    Total calculated
    $0
    Hours/week
    2
  • Dan Cummings

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Garrett Kephart

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Geoff Given

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Ghessycka Bennett

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Glynnis Breen

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Jenny Koehler

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Kevin T Newman

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Krista Campbell

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Michelle Bonner Techel

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Monte S Meyers

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Penelope Lie

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Raoul Goff

    DIRECTOR (THRU 5/9/25)

    Total calculated
    $0
    Hours/week
    2
  • Sharon Coleman

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

The first 25 listed. 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
    $22,346,456
    Expenses
    $20,969,540
    Contributions
    $4,266,346
    Grants paid
    $1,181,680
  • 2023
    Revenue
    $20,194,199
    Expenses
    $18,436,797
    Contributions
    $4,390,160
    Grants paid
    $959,410
  • 2022
    Revenue
    $15,595,938
    Expenses
    $17,581,075
    Contributions
    $3,671,588
    Grants paid
    $2,613,072

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.

Other returns filed

  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2021 · 990

    Revenue
    $11,430,799
    Expenses
    $36,511,631
    Assets (EOY)
    $18,256,123
  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2020 · 990

    Revenue
    $7,780,069
    Expenses
    $5,802,900
    Assets (EOY)
    $43,943,887
  • 2019 · 990

    Revenue
    $15,639,255
    Expenses
    $15,153,725
    Assets (EOY)
    $45,206,184
  • 2018 · 990

    Revenue
    $19,439,441
    Expenses
    $18,866,127
    Assets (EOY)
    $43,335,252
  • 2017 · 990

    Revenue
    $21,334,330
    Expenses
    $19,073,203
    Assets (EOY)
    $43,818,504
  • 2016 · 990

    Revenue
    $25,279,485
    Expenses
    $17,571,451
    Assets (EOY)
    $40,785,424
  • 2015 · 990

    Revenue
    $19,706,584
    Expenses
    $16,572,417
    Assets (EOY)
    $35,120,945

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

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.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2024 return

  • PRESIDIO ENVIRONMENTAL INSTITUTE

    501(C)(3) · FIELD SCIENCE · CA · controlled entity

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 2024, the newest we have parsed for this organization.