· Private foundation
Tahoe Blue Foundation
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2022–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k20 grants · $35k
- $10k–50k6 grants · $91k
- $50k–250k2 grants · $130k
| Recipient | Amount |
|---|---|
| MARIN ACADEMY | $80,000 |
| SMITHSONIAN INSTITUTION | $50,000 |
| URBAN SCHOOL OF SAN FRANCISCO | $33,333 |
| URBAN SCHOOL OF SAN FRANCISCO | $17,500 |
| URBAN SCHOOL OF SAN FRANCISCO | $10,000 |
| BUILDING 21 | $10,000 |
| TAHOE FUND | $10,000 |
| MOUNT TAMALPAIS SCHOOL | $10,000 |
| 826 VALENCIA INC | $5,342 |
| CALIFORNIA FILM INSTITUTE | $5,217 |
| SMITHSONIAN INSTITUTION | $5,000 |
| SMITHSONIAN INSTITUTION | $2,500 |
| MILL VALLEY LIBRARY FOUNDATION | $2,500 |
| THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY | $2,500 |
| SMITHSONIAN INSTITUTION | $2,315 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY22–24, $2k) land where the poverty rate runs at 6%, against an area that typically sits at 10%. 34% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
19 repeat relationships — 17 still active in FY2024, 2 since wound down; 4 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 99% of grant dollars renewed an existing relationship; $2k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- MTMOUNT TAMALPAIS SCHOOL3× · 2022–2024 · $173k · revenue +44%
SMITHSONIAN INSTITUTION3× · 2022–2024 · $122k · revenue +5%- MAMARIN ACADEMY2× · 2023–2024 · $90k · revenue +4%
Funded once
THE CENTER FOR REPRODUCTIVE RIGHTS INCone grant, 2023 · $10k · revenue -4%- CHCOMMUNITY HOUSING FOUNDATION MILL VALLEYone grant, 2023 · $5k · revenue -94%
- LTLEAGUE TO SAVE LAKE TAHOEgraduatedone grant, 2023 · $1k · revenue +34%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.
The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
To promote philanthropy to make santa cruz county a better place to live, now and in the future.we bring together people, ideas, and resources to inspire philanthropy and accomplish great things.
The association serves its members by creating resources that enable california school administrators to develop and apply creative leadership and management skills and in turn, improve the educational process for all students.
Guided by the principles of academic rigor and diversity, the international school of san francisco offers programs of study in french and english to prepare its graduates for a world in which the ability to think critically and to…
Ca fwd drives action to identify solutions that can be taken to scale to meet the challenges the state is facing. the organization is driven by the belief that regional solutions across the state will help ensure economic, environmental,…
The ucla foundation is the giving, receiving, and investing arm of the ucla campus. the foundation enables private donors to help build, sustain and advance one of the world's finest academic and research institutions. private philanthropy…
The mission of the university of california, irvine foundation (uc irvine foundation) is to raise and manage private funds to support uc irvine's broader mission of excellence in teaching, research and public service. to this end, the uc…
The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.
To support educational, research and public functions and programs of the riverside campus of the university of california.
The trust for public land creates parks and protects land for people, ensuring healthy, livable communities for generations to come. in the past year, we helped communities to plan for parks and conservation, fund parks and conservation,…
For reference, the grantee most central to the portfolio’s shape is Hawaii Community Foundation and the most unlike its peers is League to Save Lake Tahoe. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 30 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 3% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 14% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
36 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 36 of the 38 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds MOUNT TAMALPAIS SCHOOL ↗
- Who funds URBAN SCHOOL OF SAN FRANCISCO ↗
- Who funds SMITHSONIAN INSTITUTION ↗
- Who funds MARIN ACADEMY ↗
- Who funds TAHOE FUND ↗
- Who funds BUILDING 21 ↗
- Who funds IMAGINE WORLDWIDE ↗
- Who funds CALIFORNIA FILM INSTITUTE ↗
- Who funds 826 Valencia ↗
- Who funds THE CENTER FOR REPRODUCTIVE RIGHTS INC ↗
- Who funds TREVOR PROJECT INC ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds MILL VALLEY LIBRARY FOUNDATION ↗
- Who funds COMMUNITY HOUSING FOUNDATION MILL VALLEY ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds SAN FRANCISCO FOOD BANK ↗
- Who funds GLIDE FOUNDATION ↗
- Who funds GOLDEN GATE NATIONAL PARKS CONSERVANCY ↗
- Who funds Tahoe Rim Trail Association ↗
- Who funds LEAGUE TO SAVE LAKE TAHOE ↗
- Who funds MARIN HUMANE SOCIETY ↗
- Who funds HAWAII COMMUNITY FOUNDATION ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds ST VINCENT DE PAUL SOCIETY DISTRICT COUNCIL OF MARIN COUNTY ↗
- Who funds Save The Children Federation Inc ↗
- Who funds LOUDOUN CITIZENS FOR SOCIAL JUSTICE ↗
- Who funds BLUE ANGELS FOUNDATION INC ↗
- Who funds Oakland Lacrosse Club ↗
- Who funds Project Open Hand ↗
- Who funds BLOOD CANCER UNITED INC ↗
- Who funds OUTWARD BOUND CALIFORNIA ↗
- Who funds SWEETWATER MUSIC HALL INC ↗
- Who funds BREAKTHROUGH T1D ↗
- Who funds MAUI HUMANE SOCIETY ↗
- Who funds Sacramento Region Community Foundation ↗
- Who funds HEADLANDS CENTER FOR THE ARTS ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Marin Community Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · The San Francisco Foundation · Silicon Valley Community Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · The Kurt and Julie Hauser Foundation · Robert K & Barbara J Straus Family Foundation Inc · The Springcreek Foundation · Swig Foundation · Hobsonlucas Family Foundation · Impactassetsinc
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Tahoe Blue Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- Save the Children Federation Inc — 30% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Tahoe Blue Foundation?
Find your warmest path to Tahoe Blue Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.