· Private foundation
Hidden Spring 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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k18 grants · $65k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| SALVE REGINA ACADEMY | $10,000 |
| BOSTON HEALTHCARE FOR THE HOMELESS | $8,031 |
| HARVARD PUBLIC CULTURE PROJECT | $5,022 |
| GROTON SCHOOL | $5,007 |
| PLANNED PARENTHOOD | $5,007 |
| BELMONT HILL SCHOOL | $5,000 |
| ECCLESIA MINISTRIES | $5,000 |
| Individual grant recipient | $4,500 |
| LOAVES AND FISHES FOOD PANTRY | $4,000 |
| EPIPHANY SCHOOL | $3,750 |
| HORIZONS FOR HOMELESS CHILDREN | $3,522 |
| SORRENTO LIBRARY | $2,500 |
| MANO EN MANO | $2,500 |
| WOMEN FOR HEALTHY RURAL LIVING | $2,500 |
| EPIPHANY SCHOOL EARLY LEARNING CENTER | $2,250 |
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 (FY20–25, $27k) land where the poverty rate runs at 16%, 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 +32% since the first grant, against +30% for the ones you funded once.
25 repeat relationships — 14 still active in FY2025, 11 since wound down; 5 grantees were first funded in FY2025 (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 FY2025, 66% of grant dollars renewed an existing relationship; $25k 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
THE EPIPHANY SCHOOL INC6× · 2020–2025 · $43k · revenue +185%
GROTON SCHOOL6× · 2020–2025 · $22k · revenue +32%
BOSTON HEALTH CARE FOR THE HOMELESS PROGRAM INC4× · 2022–2025 · $20k · revenue +49%
Funded once
- HCHARVARD COLLECTION OF HISTORICAL SCIENTIFIC INSTRUMENTSone grant, 2022 · $7k
- COCOLLECTION OF HISTORICAL SCIENTIFIC INSTRUMENTS HARVARD UNIVERSITYone grant, 2020 · $6k
- EMECCELSIA MINISTRIESone grant, 2023 · $6k
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 encourage and support the facility's residents in maintaining family and life long relationships through the operation of a 36-bed residential care facility in salem, massachusetts. brookhouse home welcomes…
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
Maine Historical Society, founded in 1822, is a private non-profit whose mission is to preserve and share Maine's story. Based in Portland, we work closely with communities and partners throughout the state, and serve a statewide and…
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
Laboure college provides high-quality education and prepares women and men for careers in nursing and allied health fields.
Provider of pediatric healthcare, education, research & community service
Brookview's mission is to help homeless and at risk families learn the skills necessary to break the cycle of homelessness and poverty.
Harbor Care's mission is to provide vital services, including housing and healthcare to all in our communities needing assistance. Our vision is one where everyone gets to live safe, stable, and healthy lives, filled with purpose, respect…
The mission of the beth israel deaconess hospital-plymouth, inc. (bid-plymouth or hospital) is to improve the health and well-being of its patients and communities by providing a full continuum of healthcare services with excellence and…
Project hope is a multi service agency that moves families up and out of poverty.project hope works in partnership with women and families in the dorchester and roxbury neighborhoods of boston on their journeys up and out of poverty. we do…
For reference, the grantee most central to the portfolio’s shape is Saint Francis House Inc and the most unlike its peers is Armenian International Dental Association Inc. 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 35 years old; the field is 17. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 4% of your grantees by number, and just 4% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% 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.
22 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. 22 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 THE EPIPHANY SCHOOL INC ↗
- Who funds PEABODY ESSEX MUSEUM INC ↗
- Who funds GROTON SCHOOL ↗
- Who funds BOSTON HEALTH CARE FOR THE HOMELESS PROGRAM INC ↗
- Who funds BELMONT HILL SCHOOL INC ↗
- Who funds LOAVES AND FISHES FOOD PANTRY ↗
- Who funds LITTLE SAPLINGS CHILD CARE CENTER ↗
- Who funds ARMENIAN INTERNATIONAL DENTAL ASSOCIATION INC ↗
- Who funds INTERNATIONAL INSTITUTE OF NEW ENGLAND INC ↗
- Who funds SORRENTO PUBLIC LIBRARY ↗
- Who funds Hand in Hand Mano en Mano ↗
- Who funds The President and Trustees of Colby College ↗
- Who funds WOMEN FOR HEALTHY RURAL LIVING ↗
- Who funds HORIZONS FOR HOMELESS CHILDREN ↗
- Who funds TRANSITION HOUSE INC ↗
- Who funds SAINT FRANCIS HOUSE INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds CHARLES RIVER EPISCOPAL CO-HOUSING ENDEAVOR INC ↗
- Who funds BREAKING GROUND HOUSING DEVELOPMENT FUND CORPORATION ↗
- Who funds WOMEN'S LUNCH PLACE 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: Maine Community Foundation Inc · 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 Hidden Spring 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.
- Transition House Inc — 39% of income from government
- International Institute of New England Inc — 24% of income from government
- Horizons for Homeless Children — 21% of income from government
- Saint Francis House Inc — 18% of income from government
- Women's Lunch Place Inc — 8% of income from government
- Boston Health Care for the Homeless Program Inc — 8% of income from government
- Peabody Essex Museum Inc — 3% of income from government
- Friends of the Public Garden Inc — 1% of income from government
- The Epiphany School Inc — 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.
Warm introductions · Powered by PlinthPlus
How do I get to Hidden Spring Foundation?
Find your warmest path to Hidden Spring Foundation 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.