· Public charity
Tamalpais Pacific
Charitable activities that benefit and support the purposes of that class of organizations described in sections 501(c)(3) & 509(a)(1)&(2) whose mission includes the provision of housing & related services to low & moderate income persons, elderly people, and those with disabilities.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- $10k–50k4 grants · $119k
- $50k–250k5 grants · $531k
| Recipient | Amount |
|---|---|
| Habitat for Humanity | $165,000 |
| Buckelew Programs | $100,000 |
| Canal Alliance | $100,000 |
| Homeward Bound | $85,000 |
| The Living Room | $81,100 |
| The Redwoods | $35,000 |
| ArtWorks Downtown | $35,000 |
| Ross Valley Ecumenical House | $30,020 |
| Two Valleys Community Land Tr | $18,604 |
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 (FY20–24, $592k) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 99% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-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.
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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 7% of Tamalpais Pacific’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another. Read by recipient address, 99% of the giving stays in CA; read by stated purpose it is 92% — less of the work is directed home than the recipients' locations suggest.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +58% since the first grant, against +12% for the ones you funded once.
12 repeat relationships — 6 still active in FY2024, 6 since wound down; 3 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, 76% of grant dollars renewed an existing relationship; $154k 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
- HBHomeward Bound of Marin6× · 2017–2024 · $515k · revenue +331%
- TLTHE LIVING ROOM CENTER5× · 2020–2024 · $387k · revenue +162%
- PHPEP Housing3× · 2020–2022 · $250k · revenue +58%
Funded once
- ECEPISCOPAL COMMUNITY SERVICES OF SAN FRANCISCOone grant, 2023 · $200k · revenue +12%
MARIN CITY HEALTH AND WELLNESS CENTERone grant, 2019 · $100k · revenue +8%- BCBOLINAS COMMUNITY LAND TRUSTone grant, 2020 · $40k · revenue -23%
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.
Community Housing Sonoma County creates supportive housing communities for people living with disabling conditions, especially veterans.
Improve the quality of life for individuals in Alameda County, Contra Costa County, Solano County, Monterey County, Sacramento County and the surrounding area in the State of California.
Homes for Sonoma is a nonprofit developer creating quality workforce housing options that support safe and sustainable community, and finds efficient, scalable solutions to address the housing crisis in Sonoma County and throughout…
The primary purpose of this corporation is to provide and maintain housing opportunities for people with developmental disabilities and low income populations.
To alleviate and improve the housing condition of the needy, physically or mentally handicapped, elderly persons and others whose housing needs are not being adequately met in San Mateo County, CA.
To promote and provide affordable housing and accessible housing for individuals with developmental disabilities.
Interim, inc.'s mission is to provide services and affordable housing to supporting members of our community with mental illness in building productive and satisfying lives.
SVILC builds disability identity, culture, pride, creating opportunities for personal and community transformation, and partnering with others to ensure that civil and human rights are protected.
We work to end homelessness through housing solutions, supportive services, and connection to community. we advocate for equitable and just systems that ensure all individuals and families will have a safe place they can call home.
Housing counseling services to low and moderate income residents of the Bay Area. Services include placement, discrimination investigations, tenant and landlord dispute resolution, reverse mortgage counseling, and rental assistance…
Support and develop low-income affordable cooperative housing.
For reference, the grantee most central to the portfolio’s shape is Resources for Community Development and the most unlike its peers is Two Valleys Community Land Trust. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 40 years old; the field is 18. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
21 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.
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 Homeward Bound of Marin ↗
- Who funds THE LIVING ROOM CENTER ↗
- Who funds PEP Housing ↗
- Who funds RESOURCES FOR COMMUNITY DEVELOPMENT ↗
- Who funds EDEN HOUSING INC ↗
- Who funds BUCKELEW PROGRAMS ↗
- Who funds HABITAT FOR HUMANITY GREATER SAN FRANCISCO ↗
- Who funds EPISCOPAL COMMUNITY SERVICES OF SAN FRANCISCO ↗
- Who funds THE REDWOODS A COMMUNITY OF SENIORS ↗
- Who funds CANAL ALLIANCE ↗
- Who funds MARIN CITY HEALTH AND WELLNESS CENTER ↗
- Who funds EAH Inc ↗
- Who funds COMMUNITY LAND TRUST ASSOCIATION OF WEST MARIN ↗
- Who funds ROSS VALLEY ECUMENICAL HOUSING ASSOCIATION ↗
- Who funds BOLINAS COMMUNITY LAND TRUST ↗
- Who funds ART WORKS DOWNTOWN INC ↗
- Who funds ST VINCENT DE PAUL SOCIETY DISTRICT COUNCIL OF MARIN COUNTY ↗
- Who funds Two Valleys Community Land Trust ↗
- Who funds Center for Volunteer & Nonprofit Leadership ↗
- Who funds Gilead House ↗
- Who funds SAN FRANCISCO FOOD BANK ↗
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: Leonard & Beryl Buck Foundation · Marin Community Foundation · The San Francisco Foundation · Extrafood · McNabb Foundation · Peter E Haas Jr Family Fund · The William G Irwin Charity Foundation · Silicon Valley Community Foundation · Kaiser Foundation Hospitals · Hobsonlucas Family Foundation · THDF II Inc DBA The Home Depot Foundation & Homer Fund · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma
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 Tamalpais Pacific 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.
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 Tamalpais Pacific?
Find your warmest path to Tamalpais Pacific 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.