· Private foundation
Harry and Helen Tassell Family Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k7 grants · $25k
- $10k–50k2 grants · $40k
| Recipient | Amount |
|---|---|
| DELTA LEARNING CENTER | $20,000 |
| OPPORTUNITY JUNCTION | $20,000 |
| LIVERMORE VALLEY ARTS | $5,550 |
| GHOSTLIGHT THEATRE | $5,000 |
| ANTIOCH HISTORICAL SOCIETY | $5,000 |
| CARMEL ART ASSOCIATION | $5,000 |
| SUNSET CULTURAL CENTER | $2,500 |
| ANTIOCH ROTARY CLUB | $1,750 |
| BONITA VALLEY COMMUNITY CHURCH | $200 |
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.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 100% of your 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.
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.
13 repeat relationships — 9 still active in FY2025, 4 since wound down.
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 FY2025, 100% of grant dollars renewed an existing relationship; $0 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
- OJOPPORTUNITY JUNCTION INC8× · 2017–2025 · $105k · revenue +126%
- DLDELTA LEARNING CENTER6× · 2019–2025 · $87k · revenue +23%
- GTGHOSTLIGHT THEATRE ENSEMBLE6× · 2019–2025 · $20k · revenue +88%
Funded once
- FYFONTANA YOUTH FOUNDATIONone grant, 2019 · $6k
- LLVPACone grant, 2023 · $2k
- ABANTIOCH BAND BOOSTERS ASSOCone grant, 2021 · $1k
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.
To champion the performing arts in Santa Rosa for all. To connect people with one another and with art that can enrich their lives. To embrace people from all backgrounds. To provide exceptional service to our resident companies and to…
Promotes Arts in Lake County through the operation of an Art Gallery and a Community Theatre.
Theater production to local community
Regional theater
Provide community theatre entertainment
Organize, manage, and support the Diablo Symphony.
The promotion of the performing arts, particularly theatre. 6 productions were offered to the public during the year.
The promotion of the performing and fine arts, the enhancement of the artistic climate and activities, and the stimulation of interest in and appreciation for the performing, visual, and fine arts in the City of Camarillo and surrounding…
To provide the community with artistic programs
The Center for the Arts is a cultural and educational organization that promotes and presents the literary, visual and performing arts for the enrichment of the community.
Community theater
For reference, the grantee most central to the portfolio’s shape is Antioch Rotary Club and the most unlike its peers is Carmel Art Association. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
8 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. 8 of the 18 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.
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: Antioch Community Foundation Attn Keith Archuleta · Amazonsmile Foundation
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 Harry and Helen Tassell Family 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.
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.