· Public charity
Rethink Charity
RETHINK CHARITY's mission is to encourage effective altruism by creating initiatives that facilitate interpersonal engagement with the objective of exposing the wider public to altruism projects and energizing those already involved.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2023.
Where the money goes
Your grants by size, and where they go.
The 11 grants below total $1,136,502 — the rows itemised in this filing. The $1,232,267 headline is the total grant expense reported on the return, so the remaining $95,765 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
By grant size · FY2023
- Under $10k4 grants · $28k
- $10k–50k4 grants · $122k
- $50k–250k1 grant · $139k
- $250k+2 grants · $847k
| Recipient | Amount |
|---|---|
| NONLINEAR INC | $527,325 |
| TSINGHUA EDUCATION FOUNDATION | $320,000 |
| MALARIA CONSORTIUM US | $138,794 |
| CENTRE FOR EFFECTIVE ALTRUISM US | $45,555 |
| SECUREBIO INC | $36,922 |
| ANIMAL CHARITY EVALUATORS | $28,564 |
| VIDA PLENA | $11,027 |
| RETHINK PRIORITIES | $8,285 |
| ANIMAL ETHICS | $7,386 |
| ALLFED INSTITUTES | $7,352 |
| EVERY ORG | $5,292 |
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 (FY19–23, $1.3M) 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 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.
Which US states your grants reach
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 +47% since the first grant, against -7% for the ones you funded once.
23 repeat relationships — 6 still active in FY2023, 17 since wound down; 5 grantees were first funded in FY2023 (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 FY2023, 67% of grant dollars renewed an existing relationship; $377k 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
- RPRethink Priorities3× · 2020–2023 · $1.3M · revenue +851% · 55% of their budget
GIVEDIRECTLY INC3× · 2019–2021 · $801k · revenue +358%- THTHE HUMANE LEAGUE3× · 2019–2021 · $596k · revenue +110%
Funded once
- STSpeculative Technologies Incone grant, 2022 · $925k · revenue -7% · 79% of their budget
- NINONLINEAR INCone grant, 2022 · $253k · revenue -89% · 41% of their budget
- AFASSOCIATION FOR HEALTH LEARNING AND INFERENCE INCgraduatedone grant, 2021 · $188k · revenue +939%
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.
A nonprofit scientific research organization that develops vaccines and antibodies for hiv, tuberculosis, and emerging infectious diseases.
Climate catalyst sparks collective action to tackle the biggest climate challenges we face today: cutting emissions in heavy industries.
E3g is a leading international not-for-profit think tank specialising in climate diplomacy harnessing expertise in the politics and economics of climate change.
Using legal advocacy to make advances in science and technology safer for people and the planet.
To drive global coordination that minimizes extreme AI risks and ensures the benefits of AI are shared by all. SAIF fosters responsible governance to reduce catastrophic risks through shared understanding and collaboration among key global…
Our mission is to create a fair and inclusive economy where underserved people have quality financial choices and opportunities to improve their economic well-being. we find and help build innovative companies with the potential to reach…
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
Well Aware's mission is to provide innovative and sustainable solutions to water scarcity and contamination in East Africa.
To launch breakthrough climate mitigation efforts by identifying, supporting, and unleashing innovative leaders with transformative strategies.
To improve the efficacy, speed, cost, sustainability, and scaling of conservation solutions through harnessing exponential technology, innovation, and entrepreneurship to prevent human-induced extinction.
To provide multi-specialty surgical care, humanitarian aid and educational support to people in low- and middle-income countries.
To offer the dignity of fair employment to people living in impoverished communities, who become transformational agents of global forest restoration.
For reference, the grantee most central to the portfolio’s shape is Evidence Action and the most unlike its peers is Every Org. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 13 years old; the field is 16. You back the younger end — and your money leans older still.
The field is 22% startups (under 5 years old) — 21% of your grantees by number, and just 25% of your money.
The orgs you fund almost never close — 2% lost their exemption, against 13% 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.
37 grantees tracked through their own filings, 2017–2026.
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 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 37 of the 42 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 Rethink Priorities ↗
- Who funds Speculative Technologies Inc ↗
- Who funds GIVEDIRECTLY INC ↗
- Who funds THE HUMANE LEAGUE ↗
- Who funds THE GOOD FOOD INSTITUTE INC ↗
- Who funds EFFECTIVE VENTURES FOUNDATION USA INC ↗
- Who funds MALARIA CONSORTIUM US INC ↗
- Who funds TSINGHUA EDUCATION FOUNDATION NA INC ↗
- Who funds EVIDENCE ACTION ↗
- Who funds NONLINEAR INC ↗
- Who funds ASSOCIATION FOR HEALTH LEARNING AND INFERENCE INC ↗
- Who funds Animal Equality ↗
- Who funds ANIMAL CHARITY EVALUATORS ↗
- Who funds COALITION FOR RAINFOREST NATIONS SECRETARIAT ↗
- Who funds PLAYERS PHILANTHROPY FUND INC ↗
- Who funds The Fistula Foundation ↗
- Who funds COOL EARTH ACTION USA INC ↗
- Who funds NEW INCENTIVES ↗
- Who funds Meridian Institute ↗
- Who funds CLEAN AIR TASK FORCE INC ↗
- Who funds THE CLEAR FUND ↗
- Who funds Vida Plena ↗
- Who funds HELEN KELLER INTERNATIONAL ↗
- Who funds MERCY FOR ANIMALS INC ↗
- Who funds SECUREBIO INC ↗
- Who funds WILD ANIMAL INITIATIVE INC ↗
- Who funds GIVEPOWER FOUNDATION ↗
- Who funds SIGHTSAVERS INC ↗
- Who funds LIVING GOODS ↗
- Who funds LEVERAGE RESEARCH INC ↗
- Who funds TIME DOLLAR INSTITUTE INC ↗
- Who funds STRONGMINDS INC ↗
- Who funds ANIMAL ETHICS INC ↗
- Who funds ALLFED INSTITUTE ↗
- Who funds MACHINE INTELLIGENCE RESEARCH INSTITUTE INC ↗
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: Effective Ventures Foundation USA Inc · Founders Pledge Inc · Good Ventures Foundation · Silicon Valley Community Foundation · Every Org · Berkeley Existential Risk Initiative · Humane America Animal Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Daffy Charitable Fund · Rsf Social Finance Inc · Double Up Drive Inc · Kh Dominion Foundation 5507-21-40
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 Rethink Charity 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, a single department, or state — 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 Rethink Charity?
Find your warmest path to Rethink Charity 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.