· Private foundation
Oak Grove School
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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| FRIENDS OF RIVER MEETING HOUSE | $7,486 |
| VASSALBORO COMMUNITY SCHOOL | $5,000 |
| MESSALONSKEE HIGH SCHOOL | $4,940 |
| ERKSINE ACADEMY | $4,934 |
| MESSALONSKEE HIGH SCHOOL | $4,914 |
| KENNEBEC VALLEY MULTIPLE PATHWAYS | $4,084 |
| AUGUSTA FOOD BANK | $4,000 |
| MESSALONSKEE HIGH SCHOOL | $3,200 |
| WATERVILLE JR HIGH SCHOOL | $2,500 |
| MESSALONSKEE HIGH SCHOOL | $2,500 |
| CHILDREN'S DISCOVERY MUSEUM | $1,600 |
| MESSALONSKEE HIGH SCHOOL | $1,500 |
| UPPER KENNEBEC VALLEY MEMORIAL HIGH | $1,006 |
| DEXTER REGIONAL HIGH SCHOOL | $1,000 |
| ERSKINE ACADEMY | $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.
Your human-services grants (FY22–22, $7k) land where the poverty rate runs at 12%, 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.
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 +21% since the first grant, against 0% for the ones you funded once.
32 repeat relationships — 11 still active in FY2025, 21 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, 86% of grant dollars renewed an existing relationship; $13k 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
- EAERSKINE ACADEMY6× · 2017–2025 · $52k · revenue +25%
- MAMaine Arts Academy4× · 2017–2024 · $19k · revenue +174%
- KHKENTS HILL SCHOOL2× · 2022–2024 · $15k · revenue +7%
Funded once
- MAMT ABRAM REGIONAL HSone grant, 2023 · $15k
- MAMOUNT ABRAM HIGH SCHOOLone grant, 2022 · $9k
- MBMOUNT BLUE HIGH SCHOOLone grant, 2017 · $9k
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.
Penobscot Christian School exists to provide classical Christian education that cultivates life-long learners who love God, love others, and engage culture.
Heronfield academy provides an exceptional middle school experience that empowers students to reach their highest level of academic and personal achievement. we are commited to ensuring that every individual in our community is seen,…
Hca is a public charter school offering rigorous, personalized, project- based education to maine students in grades 5-12.
Fryeburg Academy serves its students, the local and global community, and the future by providing diverse learning opportunities, fostering achievement and inclusivity, and cultivating responsible citizenship.
Maine Media Workshops & College educates and inspires visual artists and storytellers to achieve their creative potential. We provide lifelong learning opportunities for those pursuing the fine arts and media-related professions. We are…
Mountain Village is a public Nature-based, Montessori school, engaging students in experiences that integrate natural environments with the Montessori curriculum, igniting achievement in academic, social-emotional and physical development.
Acadia promotes high educational achievement through directed teaching opportunities that are entwined with extensive experiential learning opportunities. Faculty and staff will support the development of the whole child as each student…
To operate and support an independent music school on rock and contemporary music. The Academy is dedicated to creating positive life experiences for Maine students of all ages and abilities through innovative and inclusive music programs…
The maine environmental education association enhances and amplifies the efforts of individuals and organizations building environmental awareness, appreciation, understanding and action in maine.
The baxter academies of maine is an educational institution that established and operates public charter schools in maine.
Thetford academy is an independent school community with a public purpose. our mission is to celebrate the unique worth of all students, nurture their strengths, and challenge them to fulfill their potential.
Suffield Academy is a coeducational independent secondary school serving a diverse student body of day and boarding students from across the United States and from many foreign counties. The school is grounded in a tradition of academic…
For reference, the grantee most central to the portfolio’s shape is Junior Achievement of Maine Inc and the most unlike its peers is The Town Line 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 23 years old; the field is 20. You back the established end — and your money leans older still.
The field is 17% startups (under 5 years old) — 4% of your grantees by number, and just 2% 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.
21 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. 21 of the 81 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 ERSKINE ACADEMY ↗
- Who funds Maine Arts Academy ↗
- Who funds KENTS HILL SCHOOL ↗
- Who funds FOXCROFT ACADEMY TRUSTEES OF ↗
- Who funds AUGUSTA FOOD BANK ↗
- Who funds Maine Central Institute ↗
- Who funds Ecology Learning Center ↗
- Who funds PINELAND SUZUKI SCHOOL ↗
- Who funds CHILDREN'S DISCOVERY MUSEUM ↗
- Who funds WHITEFIELD LIBRARY ↗
- Who funds KENNEBEC VALLEY COMMUNITY ACTION PROGRAM ↗
- Who funds MAINE ORGANIC FARMERS AND GARDENERS ASSOCIATION ↗
- Who funds THE TOWN LINE 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 · Davis Family Foundation · Melmac Education Foundation · Kennebec Savings Bank Foundation · Stephen & Tabitha King Foundation Inc · Bangor Savings Bank Foundation · Reny Charitable Foundation · The Borman Family Foundation · The Bank of Maine Charitable Foundation · The Widgeon Point Charitable Foundation · Simmons Foundation - PerkinsThompson · John T Gorman 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 Oak Grove School 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.
Warm introductions · Powered by PlinthPlus
How do I get to Oak Grove School?
Find your warmest path to Oak Grove School 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.