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Oak Grove School at a glanceMostly funded, not a grantmaker: see who funds it →

· Private foundation

Oak Grove School

Its FY2025 filing reports that it accepted unsolicited grant applications.

$92k
Granted FY2025still arriving
66
Grants FY2025still arriving
1
States reached
$7k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$364kArts & Culture$117kYouth Development$36kFood & Nutrition$34kEnvironment$29kRecreation & Sports$25kScience & Tech$11kHealth$8kOther$0
02FY2025 · 66 grants

Where the money goes

Grants by size, and the largest recipients.

$1,000
Median grant
1
States reached
$1.8M
Total assets
Largest grants
RecipientAmount
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
DEXTER REGIONAL HIGH SCHOOL$1,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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 its grants land in higher-need ZIPs.

area typical 10%CAMP CAPELLA: $3k → 11%KVCAP: $4k → 12%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

77%of every dollar goes to organizations it has funded before.
$496k · 32 repeat orgs$149k to everyone else

Grantees it renews have grown median revenue +21% since the first grant, against 0% for those 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

Re-uppedFunded once

Organizations

32
44

Total granted

$496k
$136k

Median revenue growth · since first grant

+21%
0%

Still filing today

31%
25%

New vs renewed · share of each year

In FY2025, 86% of grant dollars renewed an existing relationship; $13k went to new ones.

50%100%’17’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’21’22’23’24’25
EducationArts & CultureFood & NutritionHuman ServicesYouth DevelopmentEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • EA
    ERSKINE ACADEMY
    6× · 2017–2025 · $52k · revenue +25%
  • MA
    Maine Arts Academy
    4× · 2017–2024 · $19k · revenue +174%
  • KH
    KENTS HILL SCHOOL
    2× · 2022–2024 · $15k · revenue +7%

Funded once

  • MA
    MT ABRAM REGIONAL HS
    one grant, 2023 · $15k
  • MA
    MOUNT ABRAM HIGH SCHOOL
    one grant, 2022 · $9k
  • MB
    MOUNT BLUE HIGH SCHOOL
    one grant, 2017 · $9k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Penobscot Christian School

Penobscot Christian School exists to provide classical Christian education that cultivates life-long learners who love God, love others, and engage culture.

Education
2
Heronfield Academy

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,…

Education
3
Harpswell Coastal Academy Inc

Hca is a public charter school offering rigorous, personalized, project- based education to maine students in grades 5-12.

—
4
Fryeburg Academy

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.

Education
5
Maine Media College

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…

—
6
Mountain Village Charter School

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.

Education
7
Acadia Academy

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…

Education
8
Maine Academy of Modern Music

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…

Arts & Culture
9
Maine Environmental Education Association

The maine environmental education association enhances and amplifies the efforts of individuals and organizations building environmental awareness, appreciation, understanding and action in maine.

—
10
Baxter Academies of Maine

The baxter academies of maine is an educational institution that established and operates public charter schools in maine.

Education
11
Thetford Academy

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.

Education
12
Suffield Academy

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…

Education
How this is measured
The grantee most central to the portfolio’s shape is Junior Achievement of Maine Inc; 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.
04the grantee network

21 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
6
Early backer (in before they grew)
21/21
Grantees still filing
14/21
Grew since first funded

Where the money sits, by cause and then by grantee

DEXTER REGIONAL HIGH SCHOOL: $74,533 · OtherDEXTER REGIONAL HIGH SCHOOLMESSALONSKEE HIGH SCHOOL: $48,219 · OtherMESSALONSKEE HIGH SCHOOLFRIENDS SCHOOL OF PORTLAND: $37,000 · OtherFRIENDS SCHOOL OF PORTLAND+61 more: $331,156 · Other+61 moreERSKINE ACADEMY: $52,353 · EducationERSKINE ACADEMYMaine Arts Academy: $19,150 · EducationMaine Arts AcademyFOXCROFT ACADEMY TRUSTEES OF: $14,300 · EducationFOXCROFT ACADEMY TR…Maine Central Institute: $11,138 · EducationMaine Central Insti…WHITEFIELD LIBRARY: $5,500 · Education+3 more: $7,424 · Education+3 morePINELAND SUZUKI SCHOOL: $7,000 · Arts & CultureCHILDREN'S DISCOVERY MUSEUM: $6,600 · Arts & CultureELM CITY COMMUNITY MUSIC SCHOOL: $3,500 · Arts & CultureAUGUSTA FOOD BANK: $12,250 · Food & NutritionMAINE ORGANIC FARMERS AND GARDENERS ASSOCIATION: $3,700 · Food & NutritionKENNEBEC VALLEY COMMUNITY ACTION PROGRAM: $4,000 · Human ServicesCAMP CAPELLA INC: $2,500 · Human ServicesJUNIOR ACHIEVEMENT OF MAINE INC: $2,500 · InternationalHARDY GIRLS HEALTHY WOMEN INC: $2,000 · Youth Development
Other$490,908Education$109,865Arts & Culture$17,100Food & Nutrition$15,950Human Services$6,500International$2,500Youth Development$2,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetERSKINE ACADEMY: $52,353 over 6y, 0.2% of budgetMaine Arts Academy: $19,150 over 4y, 0.4% of budgetKENTS HILL SCHOOL: $15,289 over 2y, 0.1% of budgetFOXCROFT ACADEMY TRUSTEES OF: $14,300 over 3y, 0.1% of budgetAUGUSTA FOOD BANK: $12,250 over 3y, 0.2% of budgetMaine Central Institute: $11,138 over 2y, 0.1% of budgetEcology Learning Center: $7,500 over 2y, 0.3% of budgetPINELAND SUZUKI SCHOOL: $7,000 over 2y, 3.4% of budgetCHILDREN'S DISCOVERY MUSEUM: $6,600 over 2y, 2.3% of budgetWHITEFIELD LIBRARY: $5,500 over 2y, 5.9% of budgetKENNEBEC VALLEY COMMUNITY ACTION PROGRAM: $4,000 over 1y, 0.0% of budgetMAINE ORGANIC FARMERS AND GARDENERS ASSOCIATION: $3,700 over 1y, 0.1% of budgetTHE TOWN LINE INC: $3,620 over 1y, 3.5% of budgetJUNIOR ACHIEVEMENT OF MAINE INC: $2,500 over 1y, 0.4% of budgetCAMP CAPELLA INC: $2,500 over 1y, 0.5% of budgetHebron Academy Incorporated: $2,500 over 1y, 0.0% of budgetMaine Academy of Natural Sciences: $1,304 over 1y, 0.0% of budgetMAINE JUSTICE FOUNDATION: $500 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, 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 ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Maine Community Found…Davis Family Foundati…Melmac Education Foun…Kennebec Savings Bank…Stephen & Tabitha Kin…Bangor Savings Bank F…Reny Charitable Found…The Borman Family Fou…The Bank of Maine Cha…The Widgeon Point Cha…Simmons Foundation - …John T Gorman Foundat…
Maine Community Foundation IncME37× affinity17 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Oak Grove School funds: left to right is the share of its income from government, bottom to top the share from Oak Grove School. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    6report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–40%
    typical government reliance, FY20–25
    How this is measured
    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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
    05Through Plinth

    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.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 81 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Oak Grove School’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home