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· Public charity
Theatre Bay Areas mission is to unite, strengthen, promote and advance the theatre community in the San Francisco Bay Area, working on behalf of the conviction that the performing arts are an essential public good, critical to a healthy and truly [continued next page]
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2018–2025.
Beneath the NTEE codes, this is what the grant descriptions actually say.
…and in their own words, year by year
Words distinctive to each year’s grant purposes (TF-IDF) · event-driven terms in cyan.
Your grants by size, and where they go.
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY24–24, $12k) land where the poverty rate runs at 10% — the area typically sits at 8%. 100% of those dollars reach neighborhoods with above-average need. 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 line in 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, United Way ALICE — shown as context about the area, never attributed to your giving.
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 +91% since the first grant, against +27% for the ones you funded once.
5 repeat relationships — 2 still active in FY2025, 3 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.
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.
Theatre Bay Areas mission is to unite, strengthen, promote and advance the theatre community in the San Francisco Bay Area, working on behalf of the conviction that the performing arts are an essential public good, critical to a healthy…
Marin theatre company produces world-class theatre for the county of marin and bay area communities. mtc strives to set a national standard for intimate theatre experiences of the highest quality, featuring provocative plays by passionate…
Produces and presents professional theatre productions.
Know Theatre is a small professional theatre showcasing voices, new works, & plays that embrace the inherent theatricality of the live experience. Know Theatre seeks to be a place where artists and audiences feel welcome to take artistic…
Live theatre; for benefit of actors, directors and public
Producing professional-caliber theater aimed at a broad audience with the intent of strengthening the civic life and dialogue, providing inclusive hands-on theater.
Rogue Machine produces world premiere of new plays, primarily by Los Angeles-based playwrights, and plays new to Los Angeles, including American, West Coast, and Regional Premieres of significant contemporary theatrical works. Rogue…
Aurora Theatre Company inspires new audiences and longtime theatre lovers alike with the visceral power of live theatre. Our venues, the most intimate professional stages in the Bay Area, highlight great acting, nuanced language, and an…
Theater and other contemporary arts
To present world-class productions of classic, adapted, and original plays, and to provide a wide array of education and enrichment programming for area students and theatre-goers.
Second Thought Theatre provides an intimate and unique theatrical experience by empowering top local artists to take risks and by showcasing writers who boldly tackle the difficult and demanding questions of our rapidly changing world.
For reference, the grantee most central to the portfolio’s shape is Oakland Theater Project and the most unlike its peers is Sew Productions Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue.
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
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: Phyllis C Wattis Foundation · The Zellerbach Family Foundation · Fleishhacker Foundation · The William & Flora Hewlett Foundation · Kenneth Rainin Foundation · Gerbode Foundation · The Sam Mazza Foundation · The Rock Foundation · Koret Foundation · The Shubert Foundation Inc · East Bay Community Foundation · The San Francisco 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.
Every dot is one organisation Theatre Bay Area 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. 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.
Through Plinth
This dossier was generated cold from public filings. In Plinth it’s a working system — every applicant assessed and every grant monitored. Here’s a taste, run on one of your grantees: Alternative Theatre Ensemble.
Agentic due diligence · confidence × risk
Limited financial data in public filings.
8 years of Form 990 filings, still active; revenue up +91% since.
US 501(c)(3); EIN 861110074 on file with current IRS Form 990 filings.
Board composition & governance documents — verified live in Plinth from the applicant.
OFAC / UN sanctions screening — run live in Plinth at assessment.
Staffing, M&E and activity alignment — assessed live in Plinth from submitted proposals.
Live · Plinth’s real DD engine
Run the actual assessment on Alternative Theatre Ensemble, cold from public data.
Generated live from public IRS filings + open web sources by Plinth’s agentic engine. Shown as an illustration of the product, not a formal assessment.
Post-award monitoring · continuous checks
What you see here is static and public. In Plinth it’s operational — the full six-pillar framework on every applicant (with their own documents + live registry and sanctions checks), monitoring dashboards on every award, custom board reports, and eligibility routing for intake.
Preview generated from this grantee’s public IRS filings and independent reporting. Pillars marked “live in Plinth” require the applicant’s submitted documents. Shown as illustration, not a formal assessment.
Warm introductions · Powered by PlinthPro
Find your warmest path to Theatre Bay Area through people who sit on both boards. Search for your organization and Plinth traces the introduction across shared trustees and officers.
Every link is a documented governance overlap in public IRS 990 filings — not a personal network — and each hop carries its own confidence tier. Low-confidence or distant paths are held back rather than guessed.