· Private foundation
The Tietz Family 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 it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2024
- Under $10k7 grants · $28k
- $10k–50k6 grants · $75k
| Recipient | Amount |
|---|---|
| CENTER FOR SPIRITUAL LIVING | $20,000 |
| LANDPATHS | $15,000 |
| PAJARO VALLEY SHELTER SERVICE | $10,000 |
| CERES COMMUNITY PROJECT | $10,000 |
| ALEXANDER VALLEY FILM SOCIETY | $10,000 |
| RUSSIAN RIVERKEEPER | $10,000 |
| FARM TO PANTRY | $5,000 |
| THE LIVING ROOM LIFE CENTER | $5,000 |
| PROJECT QUETZAL | $5,000 |
| CORAZON HEALDSBURG | $5,000 |
| STEWARDS OF THE COAST & REDWOODS | $5,000 |
| Individual grant recipient | $2,000 |
| FOOD FOR THOUGHT | $1,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY20–24, $95k) land where the poverty rate runs at 10%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
20 repeat relationships: 12 still active in FY2024, 8 since wound down; 1 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, 95% of grant dollars renewed an existing relationship; $5k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- SRSANTA ROSA SYMPHONY ASSOCIATION4× · 2017–2020 · $100k · revenue +51%
- RRRussian Riverkeeper5× · 2020–2024 · $50k · revenue +125%
- PVPAJARO VALLEY SHELTER SERVICES5× · 2020–2024 · $40k · revenue +63%
Funded once
- PTPAUL TIETZ DONOR ADVISED FUNDone grant, 2020 · $2.1M
- SESonoma Ecology Centergraduatedone grant, 2021 · $5k · revenue +88%
- APALAMEDA POINT COLLABORATIVEgraduatedone grant, 2020 · $5k · revenue +317%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Sustainable Conservation advances the collaborative stewardship of Californias land, air, and water for the benefit of nature and people. For over three decades, Sustainable Conservation has built coalitions of people with different…
Sonoma County Conservation Action's mission is to better our quality of life in Sonoma County for all generations, through educating and directly engaging the public on local environmental issues and policies using grassroots organizing.
Address the homeless crisis in California.
We conserve the lands and waters of California's heartland.
At Yosemite Rivers Alliance, we unite conservation and community to protect and restore the three rivers that ?ow through the Yosemite Regionthe Tuolumne, Stanislaus, and Merced.
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…
To protect, restore, and sustain the natural and human environment in Amador and Calaveras counties for the benefit of current and future generations.
Our mission is to protect local nature and farmland to ensure a healthy environment for everyone.
To serve our community by providing direct access to sustainable sources of fresh produce and other unique foods, and provide education about food issues, both local and beyond.
Fort Ross Conservancy (FRC) is the not-for-profit partner of the Russian River Sector, Sonoma/Mendocino District of California State Parks. FRC works to preserve the nature and culture of the Sonoma Coast for the benefit of the public.
How this is measured
20 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 20 of the 31 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds SONOMA COUNTY COMMUNITY FOUNDATION ↗
- Who funds SANTA ROSA SYMPHONY ASSOCIATION ↗
- Who funds LandPaths ↗
- Who funds Russian Riverkeeper ↗
- Who funds PAJARO VALLEY SHELTER SERVICES ↗
- Who funds THE CERES COMMUNITY PROJECT ↗
- Who funds TRUE WEST FILM CENTER ↗
- Who funds THE CARTER CENTER INC ↗
- Who funds SCOPA HAS A DREAM INC DBA CORAZON HEALDSBURG ↗
- Who funds Farm to Pantry ↗
- Who funds Womens Recovery ServicesA Unique Place ↗
- Who funds Fisher River Valley Fire Rescue Auxiliary ↗
- Who funds Stewards of the Coast and Redwoods ↗
- Who funds FOOD FOR THOUGHT ↗
- Who funds Sonoma County Beekeepers Association ↗
- Who funds Sonoma Ecology Center ↗
- Who funds ALAMEDA POINT COLLABORATIVE ↗
- Who funds KOOTENAI WINTER SPORTS SKI EDUCATION FOUNDATIONINC ↗
- Who funds The Climate Center ↗
- Who funds REDWOOD GOSPEL MISSIONS ↗
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.
Open a dossier: Sonoma County Community Foundation · Sonoma County Vintners Foundation · McNabb Foundation · The Heck Foundation · Marin Community Foundation · Anthony Crabb and Barbara Grasseschi Foundation · Bothin Foundation · The San Francisco Foundation · Trione Foundation · The Joseph and Vera Long Foundation · Clif Family Foundation · St Louis Community Foundation Inc
How this is measured
How much its grantees rely on government
Each dot is one organization The Tietz Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Tietz Family Foundation. Bigger dots raise more.
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to The Tietz Family Foundation?
Find your warmest path to The Tietz Family 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.
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