· Private foundation
Rubblestone 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 you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2019–2024.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| MSPCA | $6,000 |
| GENERATIONS MUSIC FOR JUSTICE | $5,000 |
| MOTHER JONES | $3,500 |
| MOUNT HOLYOKE COLLEGE | $2,500 |
| UNION OF CONCERNED SCIENTISTS | $2,100 |
| MASS LAW REFORM INSTITUTE | $2,000 |
| STORY OF STUFF PROJECT | $1,750 |
| BBMC CHARITABLE AND EDUCATION FUND | $1,500 |
| BEST FRIENDS ANIMAL SOCIETY | $1,000 |
| EMERALD NECKLACE CONSERVANCY | $1,000 |
| FRIENDSHIPWORKS | $1,000 |
| EARTH JUSTICE | $1,000 |
| DSA FUND | $500 |
| PAN MASS CHALLENGE | $500 |
| JAMAICA PLAIN TUESDAY CLUB | $500 |
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 (FY19–24, $12k) land where the poverty rate runs at 16%, against an area that typically sits at 10%. 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.
65 repeat relationships — 17 still active in FY2024, 48 since wound down; 8 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, 61% of grant dollars renewed an existing relationship; $12k 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
- IDInfact DBA Corporate Accountability5× · 2019–2023 · $43k · revenue +14%
MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS4× · 2021–2024 · $15k · revenue +49%- NWNational Women's Health Network4× · 2019–2022 · $14k · revenue +259%
Funded once
- MJMOTHER JONES FOUNDATIONone grant, 2022 · $13k
- GGENERATIONSone grant, 2022 · $5k
- TTWOCIRCLESone grant, 2020 · $3k
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.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
To drive transformational adaptation to protect communities across the country from higher seas, stronger storms, and more frequent flooding.
Nacwa is the national voice of public clean water utilities, shaping water policy, convening a vibrant peer network, and empowering water leaders.
Friends of the earth strives for a more healthy and just world by defendng the environment and human health while advancing social and economic justice by conducting research and education, transforming the economy so it protects the…
Empowering financial professionals and consumers through world-class advocacy and education.
Eastern national promotes the public's understanding and support of america's national parks and other public trust partners by providing quality educational experiences, products and services.
Aclu foundation of ma was established to defend freedoms guaranteed in the constitution and bill of rights through public education and litigation.
The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.
For reference, the grantee most central to the portfolio’s shape is Massachusetts Advocates for Children Inc and the most unlike its peers is Generations Music for Justice. 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 43 years old; the field is 17. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 3% lost their exemption, against 11% 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.
66 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. 66 of the 107 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 Infact DBA Corporate Accountability ↗
- Who funds GREEN AMERICA ↗
- Who funds MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds National Women's Health Network ↗
- Who funds THE TRUSTEES OF MOUNT HOLYOKE COLLEGE ↗
- Who funds BEST FRIENDS ANIMAL SOCIETY ↗
- Who funds THE FOOTLIGHT CLUB ↗
- Who funds THE STORY OF STUFF PROJECT ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds ANIMAL LEGAL DEFENSE FUND INC ↗
- Who funds 350ORG ↗
- Who funds Generations Music for Justice ↗
- Who funds THE UNION OF CONCERNED SCIENTISTS INC ↗
- Who funds MASSACHUSETTS LAW REFORM INSTITUTE INC ↗
- Who funds ALTERNATIVES FOR COMMUNITY AND ENVIRONMENT INC ↗
- Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
- Who funds Appalachian Mountain Club ↗
- Who funds PINE STREET INN INC ↗
- Who funds NORTHEASTERN UNIVERSITY ↗
- Who funds ROGERSON COMMUNITIES INC ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds The Center for Investigative Reporting formrly Foundation for National Progress ↗
- Who funds EMERALD NECKLACE CONSERVANCY INC ↗
- Who funds EARTHJUSTICE ↗
- Who funds Jamaica Plain Tuesday Club Inc ↗
- Who funds PAN-MASSACHUSETTS CHALLENGE INC ↗
- Who funds MASSACHUSETTS ANIMAL COALITION INC ↗
- Who funds BIKES NOT BOMBS 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: Boston Foundation Inc · Eastern Bank Foundation · Barr Foundation · Bushrod H Campbell & Adah F Hall Charity Fund · Patagoniaorg · Combined Jewish Philanthropies of Greater Boston Inc · Analog Devices Foundation · Impactassetsinc · Jewish Communal Fund · Jpmorgan Chase Foundation · Network for Good · The Pfizer Foundation Inc
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 Rubblestone 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, a single department, or state — and drag the year to watch it move.
- Massachusetts Animal Coalition Inc — 88% of income from government
- Roxbury Stone House Inc — 29% of income from government
- Trustees of Boston University — 12% of income from government
- Pine Street Inn Inc — 11% of income from government
- Boston Health Care for the Homeless Program Inc — 8% of income from government
- Northeastern University — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Rogerson Communities Inc — 6% of income from government
- Bikes Not Bombs Inc — 2% of income from government
- Appalachian Mountain Club — 1% of income from government
- The Trustees of Mount Holyoke College — 1% of income from government
- Emerald Necklace Conservancy Inc — 0% of income from government
- Animal Rescue League of Boston — 0% of income from government
- Pan-Massachusetts Challenge Inc — 0% of income from government
- Infact Dba Corporate Accountability — 0% of income from government
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.