· Private foundation
Protostar Foundation
TO IDENTIFY, DEVELOP, AND/OR INVEST IN PROJECTS THAT SERVE UNSERVED OR UNDERSERVED NEEDS.
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
- Under $10k4 grants · $12k
- $10k–50k3 grants · $68k
| Recipient | Amount |
|---|---|
| LA JOLLA MUSIC SOCIETY | $30,000 |
| NEW YORK JUNIOR TENNIS & LEARNING | $27,500 |
| NORTH COAST REPERTORY THREATRE | $10,000 |
| SILKROAD'S GLOBAL MUSIC WORKSHOP | $5,000 |
| JUNIOR TENNIS FOUNDATION | $3,000 |
| AMERICAN FOUNDATION FOR SUICIDE PREVENTION | $2,500 |
| CENTER FOR HEALING AND JUSTICE THROUGH SPORT | $1,000 |
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 (FY17–24) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 35% of your 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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +16% since the first grant, against -41% for the ones you funded once.
10 repeat relationships — 5 still active in FY2024, 5 since wound down; 2 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, 92% of grant dollars renewed an existing relationship; $6k 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
- DTDIVERSIONARY THEATRE PRODUCTIONS INC4× · 2018–2022 · $30k · revenue +49%
- NCNORTH COAST REPERTORY THEATRE2× · 2022–2024 · $15k · revenue +27%
- KCKINGS COUNTY TENNIS LEAGUE2× · 2021–2022 · $10k · revenue +137%
Funded once
- TBTHE BROOKLYN NETS & NEW YORK LIBERTY FOUNDATIONone grant, 2021 · $10k · revenue -88%
- IAIPALPITI ARTISTS INTERNATIONAL INCone grant, 2021 · $2k · revenue -41%
- ECEAST COUNTY COMMUNITY TENNIS ASSOCIATIONone grant, 2022 · $2k
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 develop the character of young people through tennis and education, emphasizing the ideals and life of arthur ashe. see part iii, line 1 for more detail.
To promote and develop the game of tennis as a means to healthful recreation and physical fitness and to operate a year-round public recreational facility.
The organization was formed to 1) foster and promote national and international amateur tennis competition and develop amateur athletes for that competition by providing instruction and equipment; 2) promote the sport of tennis to…
San Diego Junior Theatre (Junior Theatre) was incorporated in 1948 as a nonprofit corporation and is the oldest youth theatre in the nation, offering affordable camps, classes, and outreach programs for children ages 3-18; as well as six…
The usta mission is growing tennis to inspire healthier people and communities everywhere.usta is the national governing body for the sport of tennis and the recognized leader in promoting and developing the sport's growth on every level…
The Princeton Tennis Program (PTP) is a nonprofit, year-round community tennis association serving youth and adults of the greater central New Jersey region. PTPs mission is growing the game of tennis by offering high quality group…
Our mission is to promote and develop the growth of tennis in Minnesota, North Dakota, South Dakota and northwestern Wisconsin.
CTA provides a full range of tennis programs and activities for people of all ages, abilities and backgrounds and creates opportunities to enjoy the social, physical and health benefits provided by the sport of tennis.
To serve men's professional tennis worldwide by showcasing the greatest players at the best tournaments, to entertain millions of fans around the globe, and inspire the next generation of fans and players.
For reference, the grantee most central to the portfolio’s shape is Center for Healing and Justice Through Sport and the most unlike its peers is The Brooklyn Nets & New York Liberty Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
13 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. 13 of the 15 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 LA JOLLA MUSIC SOCIETY ↗
- Who funds DIVERSIONARY THEATRE PRODUCTIONS INC ↗
- Who funds NORTH COAST REPERTORY THEATRE ↗
- Who funds UNSCRIPTED LEARNING ↗
- Who funds THE BROOKLYN NETS & NEW YORK LIBERTY FOUNDATION ↗
- Who funds KINGS COUNTY TENNIS LEAGUE ↗
- Who funds CITY PARKS FOUNDATION INC ↗
- Who funds JUNIOR TENNIS FOUNDATION INC ↗
- Who funds Mountain View Sports & Racquet Club ↗
- Who funds AMERICAN FOUNDATION FOR SUICIDE PREVENTION ↗
- Who funds IPALPITI ARTISTS INTERNATIONAL INC ↗
- Who funds EAST COUNTY COMMUNITY TENNIS ASSOCIATION ↗
- Who funds CENTER FOR HEALING AND JUSTICE THROUGH SPORT ↗
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: The Conrad Prebys Foundation · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Protostar 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.