California · Public charity
Naturebridge
To connect young people to the wonder and science of the natural world, igniting self-discovery and inspiring stewardship of our planet.
- $1.2M
- Granted FY2025(still arriving)
- 84
- Itemized grants FY2025
- 50
- Organizations funded FY2024
- 22%
- First-time grantees FY2024
- Itemized, FY2025
- $832k
- The rest is grants the schedule does not break out
- Median grant, FY2025
- $8,432
- Largest grant, FY2025
- $44,367
- Organizations funded a year
- 12 to 76
- FY2017 to FY2024
- States reached, FY2025
- 5
- Total assets, FY2025
- $21M
How open it is to new grantees
In FY2024, 22% of the organizations Naturebridge funded were first-time grantees, receiving 17% of its grant dollars.
New vs renewed · share of each year
In FY2024, 83% of grant dollars renewed an existing relationship; $107k went to new ones.
RenewedFirst-time
Where new relationships form · theme of each grantee’s first grant
EducationHuman ServicesEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2025still arriving | 57 | $832k | 25% |
| FY2024 | 50 | $622k | 22% |
| FY2023 | 56 | $794k | 29% |
| FY2022 | 12 | $196k | 25% |
| FY2020 | 38 | $566k | 16% |
| FY2019 | 71 | $942k | 18% |
| FY2018 | 76 | $1.5M | 33% |
| FY2017 | 66 | $832k | n/a |
100% classified
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Education$5.7MRecreation & Sports$517kEnvironment$217kYouth Development$7k
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
WA
OR
NV
WY
CA
VA
DC
TX
Top grantees
Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| National Mall and Memorial Parks | $603,204 | 5 | n/a |
| DC Public Schools | $546,351 | 8 | n/a |
| Mountain View Whisman School | $224,201 | 7 | n/a |
| Environmental Charter Schools | $199,660 | 7 | 0% |
| The Woods Project | $186,006 | 7 | 4% |
| Mariposa and El Portal Elementary Schools | $165,984 | 7 | n/a |
| Port Angeles School District | $165,843 | 5 | n/a |
| Sfusd | $149,080 | 6 | n/a |
| Two Rivers Public Charter School Inc | $134,301 | 8 | 0% |
| Bdc a Public Charter School Inc | $131,090 | 6 | 0% |
Show all 153 grantees
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| National Mall and Memorial Parks | $603,204 | 5 | n/a |
| DC Public Schools | $546,351 | 8 | n/a |
| Mountain View Whisman School | $224,201 | 7 | n/a |
| Environmental Charter Schools | $199,660 | 7 | 0% |
| The Woods Project | $186,006 | 7 | 4% |
| Mariposa and El Portal Elementary Schools | $165,984 | 7 | n/a |
| Port Angeles School District | $165,843 | 5 | n/a |
| Sfusd | $149,080 | 6 | n/a |
| Two Rivers Public Charter School Inc | $134,301 | 8 | 0% |
| Bdc a Public Charter School Inc | $131,090 | 6 | 0% |
| Sacramento City Unified School District | $130,768 | 7 | n/a |
| Redwood City School District | $130,432 | 7 | n/a |
| San Juan Unified School District | $126,707 | 7 | n/a |
| Los Angeles Unified School District | $114,929 | 8 | n/a |
| Elk Grove Unified School District | $100,826 | 6 | n/a |
| Kipp Bay Area Schools | $91,260 | 5 | 0% |
| Santa Monica Malibu Unifed School District | $80,852 | 6 | n/a |
| John F Kennedy Middle School Expeditionary Education Foundation | $79,366 | 6 | 15% |
| DC Bilingual Public Charter School | $76,851 | 7 | 0% |
| Prince William Public Schools | $74,814 | 4 | n/a |
| Ravenswood City School District | $74,485 | 4 | n/a |
| Berkeley Unified School Dist | $73,194 | 5 | n/a |
| Arroyo Grande High School | $69,382 | 4 | n/a |
| Spokane International Academy | $66,936 | 7 | 0% |
| Cupertino Union School District | $66,352 | 3 | n/a |
| American Cancer Society | $65,414 | 8 | n/a |
| Kipp DC Public Charter Schools | $65,320 | 4 | 0% |
| Washington Yu Ying Public Charter School | $63,795 | 4 | 0% |
| Starlight Elementary | $61,532 | 6 | n/a |
| Montebello Unified School | $61,221 | 7 | n/a |
| San Leandro Adult Career Education Center | $58,264 | 6 | n/a |
| Lompoc Unified School Dist | $58,121 | 1 | n/a |
| Bremerton School District | $54,285 | 7 | n/a |
| Pacoima Charter School | $51,121 | 2 | 0% |
| Aspire Public Schools | $49,020 | 6 | 0% |
| Selma Unified School District | $48,942 | 4 | n/a |
| Oakland Unified School District | $44,910 | 3 | n/a |
| Ingenuity Prep | $43,505 | 3 | n/a |
| Calistoga Joint Unified School District | $40,912 | 3 | n/a |
| Beaverton School District | $40,448 | 5 | n/a |
| Caliber Public Schools | $39,152 | 5 | 0% |
| Seattle Public Schools | $38,810 | 5 | n/a |
| Quillayute Valley School District | $38,524 | 5 | n/a |
| Sherman Oaks Community Charter | $36,385 | 5 | n/a |
| Quilcene School District | $34,332 | 5 | n/a |
| Achievement Preparatory Academy Public Charter School | $33,600 | 3 | 0% |
| Hamilton Elementary School | $32,609 | 4 | n/a |
| Vintage High School | $30,449 | 5 | n/a |
| Extera Public Schools | $28,566 | 3 | 0% |
| Cotati -Rohnert Park Unified School Dist | $28,515 | 3 | n/a |
| Neighborhood Youth Association | $28,331 | 3 | 2% |
| Democracy Prep Congress Heights Public Charter School | $27,640 | 3 | 0% |
| St Helena Unified School District | $26,658 | 3 | n/a |
| Mt Si High School | $26,516 | 3 | n/a |
| Multiplier | $25,085 | 1 | 0% |
| Willow Parents and Faculty Association | $22,968 | 4 | 5% |
| Hood Canal School District | $22,884 | 3 | n/a |
| Leonardo Da Vinci Parent Teacher Council | $22,860 | 1 | 8% |
| Robla School District | $22,625 | 4 | n/a |
| Excel Academy Public Charter School | $21,875 | 2 | 0% |
| Alliance for Education | $21,839 | 3 | 0% |
| Franklin-McKinley School District | $21,500 | 3 | n/a |
| West Contra Costa Unified School District | $20,983 | 2 | n/a |
| The Oakland Public Education Fund | $20,733 | 3 | 0% |
| Alliance Judy Ivie Burton Technology Academy High School | $20,418 | 2 | 0% |
| Friends of Laces | $20,306 | 3 | 2% |
| Windsor Unified School District | $18,935 | 1 | n/a |
| Grant Union High School | $18,932 | 3 | n/a |
| Rosie the Riveter Trust | $18,537 | 3 | 1% |
| PTA Ca Congress of Parents-Sierra Oaks School PTA | $18,514 | 3 | 6% |
| Gustine High School | $18,403 | 2 | n/a |
| Sacred Heart Nativity School | $18,363 | 3 | n/a |
| Bridges Public Charter School | $18,315 | 3 | 0% |
| Novato Unified School District | $18,151 | 3 | n/a |
| Multnomah Envir Studies Magnet | $17,813 | 1 | n/a |
| Friends of Reed Inc | $17,024 | 2 | 2% |
| PTA California Congress of Parents Teachers & Students INC | $16,936 | 3 | n/a |
| Glenwood Elementary School | $16,693 | 2 | n/a |
| North Hollywood High School Animal Studies/Biological Sciences Zoo | $16,481 | 2 | n/a |
| Louisa Boren STEM K-8 PTA 615183 | $15,389 | 2 | 15% |
| Belleview Elementary School | $14,638 | 1 | n/a |
| Centinela Valley Union High Schol District | $13,958 | 2 | n/a |
| Friends of the Ihp | $13,585 | 2 | 6% |
| Hope Community Public Charter School | $13,540 | 2 | 0% |
| St Patrick Academy | $13,213 | 2 | n/a |
| Coast Unified School District | $13,069 | 2 | n/a |
| Washington State University | $12,903 | 1 | n/a |
| St Charles Borromeo | $12,900 | 2 | n/a |
| Esparto Unified School District | $12,828 | 2 | n/a |
| DC Preparatory Academy | $12,825 | 1 | 0% |
| Mission Preparatory Inc | $12,671 | 1 | 0% |
| Alliance College-Ready Public Schools Foundation | $12,664 | 1 | n/a |
| Mission Dolores Academy | $12,615 | 2 | n/a |
| Connect Community Charter School | $12,614 | 2 | 0% |
| Gateway Community Charters | $12,556 | 2 | 0% |
| Gateway Public Schools | $12,303 | 2 | 0% |
| Redwood High School | $12,275 | 2 | n/a |
| Compton Unified School District Education Foundation Inc | $12,274 | 1 | n/a |
| Cutler-Orosi Joint Unified | $12,030 | 2 | n/a |
| Alum Rock Union Elementary School District | $11,851 | 2 | n/a |
| Young Men's Christian Association of Silicon Valley | $11,434 | 2 | 0% |
| Endeavor College Preparatory Charter | $11,283 | 1 | n/a |
| Paso Verde School PTA | $10,976 | 1 | n/a |
| Salinas Union High School District | $10,584 | 1 | n/a |
| University of Washington | $10,159 | 1 | n/a |
| San Diego Unified School District | $10,017 | 1 | n/a |
| South Kitsap School District | $9,875 | 1 | n/a |
| Buena Vista Horace Mann K-8 Community School | $9,528 | 1 | n/a |
| Chimacum School District | $9,236 | 1 | n/a |
| Stockton Unified School District | $9,231 | 1 | n/a |
| Endeavor College Preparatory Charter School | $8,837 | 1 | 0% |
| Para Los Ninos | $8,790 | 1 | 0% |
| Crescent Elementary School | $8,420 | 1 | n/a |
| Bright Star Schools | $8,210 | 1 | 0% |
| Credo High School | $7,962 | 1 | 0% |
| La Trade Technical College | $7,898 | 1 | n/a |
| Mountain Creek Middle School | $7,593 | 1 | n/a |
| The Language Academy of Sacramento | $7,524 | 1 | 0% |
| Alliance Jack H Skirball Middle School | $7,264 | 1 | 0% |
| Tekoa School District #265 | $7,232 | 1 | n/a |
| Temple City Unified School District | $7,222 | 1 | n/a |
| Linden High School | $6,975 | 1 | n/a |
| The Boys & Girls Clubs of the Olympic Peninsula | $6,828 | 1 | 0% |
| Olympia School District | $6,774 | 1 | n/a |
| Green Dot Public Schools | $6,717 | 1 | 0% |
| Bishops Peak PTA | $6,707 | 1 | 6% |
| Tree of Life International Charter School | $6,498 | 1 | 0% |
| Howard University Middle School of Mathematics & Science | $6,480 | 1 | 0% |
| Washoe County School District | $6,410 | 1 | n/a |
| Ceiba Public Schools | $6,349 | 1 | 0% |
| The Alice Birney Parent Guild | $6,239 | 1 | 3% |
| New Roads School | $6,058 | 1 | 0% |
| Fairmont Elementary PTA | $6,048 | 1 | 6% |
| Peninsula College | $6,004 | 1 | n/a |
| National Parks Friends Alliance | $6,000 | 1 | 1% |
| Boys and Girls Club of Whittier Inc | $5,983 | 1 | 0% |
| Alliance College-Ready Middle Academy #5 | $5,981 | 1 | 0% |
| West Fresno Health Care Coalition Dba West Fresno Family Resource Center | $5,894 | 1 | 1% |
| San Diego Unified School District Community Service Association | $5,728 | 1 | 6% |
| High Tech High | $5,725 | 1 | 0% |
| Rooftop Elementary PTA | $5,684 | 1 | 1% |
| City of Patterson Rec | $5,522 | 1 | n/a |
| Suquamish Elementary | $5,510 | 1 | n/a |
| Mary McLeod Bethune Day Academy Public Charter School | $5,505 | 1 | 0% |
| California Montessori Project | $5,481 | 1 | 0% |
| Bf Day Ptsa King County 61585 | $5,473 | 1 | 2% |
| Creative Minds International Public Charter School | $5,420 | 1 | 0% |
| Dana Middle School PTO | $5,353 | 1 | n/a |
| Spokane Public School District #81 | $5,351 | 1 | n/a |
| El Rancho Usd Food Service | $5,192 | 1 | n/a |
| Everett Public Schools | $5,137 | 1 | n/a |
| Sierra Foothill Charter School | $5,081 | 1 | 0% |
| PTA California Congress of Parents Teachers & Students Inc | $5,001 | 1 | 6% |
Plus 1 recipient with no EIN on record ($8k), not named here.
Where it is load-bearing
Each grantee by its size and the share of its budget Naturebridge supplied at peak.
Tap a dot to name the grantee.
How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 66.
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
For Inspiration and Recognition of Science and Technology (FIRST)NH33× affinity28 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →
Open a dossier: For Inspiration and Recognition of Science and Technology (FIRST) · GenYOUTH Incorporated · Round It Up America Inc · Project Lead the Way Inc · Project Lead the Way Inc · The Family Giving Tree · Intrepid Philanthropy Foundation · Silicon Schools Fund Inc · Charter Fund Inc D/B/A Charter School Growth Fund · Share Our Strength · Education Forward DC · Action for Healthy Kids
How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.
About Naturebridge
- How much does Naturebridge give?
- Naturebridge reported 84 itemized grants totaling $832,310, out of $1,181,680 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 12 and 76 organizations a year over FY2017 to FY2024.
- What does Naturebridge fund?
- By grant dollars over FY2017 to FY2025, its largest causes are Education (89%), Recreation & Sports (8%), Environment (3%).
- Who are Naturebridge's largest grantees?
- By total granted over FY2017 to FY2025: National Mall and Memorial Parks ($603k), DC Public Schools ($546k), Mountain View Whisman School ($224k).
- Does Naturebridge fund new organizations?
- In FY2024, 22% of the organizations it funded were first-time grantees.
- Which funders back the same organizations as Naturebridge?
- Its strongest co-funders, measured against what their size predicts, include For Inspiration and Recognition of Science and Technology (FIRST), GenYOUTH Incorporated, Round It Up America Inc.
- Where is Naturebridge based?
- Naturebridge is based in CA.
Play a game based on Naturebridge’s filings →
More from the funding graph
The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home