Skip to content
The Oldenburg Family Foundation at a glanceAlso receives grants: funding profile →

· Private foundation

The Oldenburg Family Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$69k
Granted FY2025still arriving
19
Grants FY2025still arriving
2
States reached
$20k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2022 to 2025.

Environment$79kArts & Culture$46kHuman Services$22kEducation$18kRecreation & Sports$17kHealth$16kPhilanthropy$9kFood & Nutrition$6kOther$0
02FY2025 · 19 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k18 grants · $49k
  • $10k–50k1 grant · $20k
$2,000
Median grant
2
States reached
$851k
Total assets
Largest grants
RecipientAmount
PENOBSCOT THEATRE COMPANY$20,000
DUNSTABLE RURAL LAND TRUST$7,500
GREAT POND MOUNTAIN CONSERVATION TR$6,000
WILMINGTON HIGH SCHOOL$5,000
BANGOR LAND TRUST$5,000
BANGOR YMCA$5,000
MAINE PUBLIC BROADCASTING$4,000
BANGOR YMCA$3,000
ALZHEIMER'S ASSOCIATION MAINE CHAP$2,000
GOOD SHEPARD FOOD BANK OF ME$2,000
LITERACY VOLUNTEERS OF BANGOR$2,000
ORONO LAND TRUST$1,000
HEART OF MAINE UNITED WAY$1,000
WOW WE'RE ONE WILMINGTON$1,000
MABEL WADSWORTH CENTER$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 (FY22–25, $22k) land where the poverty rate runs at 15%, against an area that typically sits at 7%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 7%BANGOR YMCA: $5k → 15%BANGOR YMCA: $5k → 15%BANGOR YMCA: $4k → 15%BANGOR YMCA: $4k → 15%BANGOR YMCA: $3k → 15%BANGOR YMCA: $1k → 15%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.

90%of every dollar goes to organizations it has funded before.
$188k · 15 repeat orgs$20k to everyone else

Grantees it renews have grown median revenue +14% since the first grant, against 0% for those funded once.

15 repeat relationships: 14 still active in FY2025, 1 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
5

Total granted

$188k
$14k

Median revenue growth · since first grant

+14%
0%

Still filing today

87%
60%

New vs renewed · share of each year

In FY2025, 91% of grant dollars renewed an existing relationship; $7k went to new ones.

50%100%’22’23’24’25
RenewedFirst-time

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

’22’23’24’25
Arts & CulturePhilanthropyEducationEnvironmentHuman ServicesRecreation & SportsOther
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

  • DR
    DUNSTABLE RURAL LAND TRUST
    4× · 2022–2025 · $25k · revenue +21%
  • BY
    BANGOR YOUNG MEN'S CHRISTIAN ASSOCIATION
    4× · 2022–2025 · $22k · revenue +53%
  • RC
    RIVER CITY ATHLETICS
    2× · 2022–2023 · $17k · revenue +25%

Funded once

  • AL
    ALAMOOSOOK LAKE ASSOCIATION
    one grant, 2024 · $10k
  • GS
    Good Shepherd Food Bankgraduated
    one grant, 2022 · $1k · revenue +28%
  • GT
    GPMC TRUST CAPITAL CAMPAIGN
    one grant, 2022 · $1k
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
Wetlands Foundation
Environment
2
Protect Maine's Fishing Heritage Foundation
Environment
3
Midcoast Conservancy

The mission of Midcoast Conservancy is to protect vital lands and waters on a scale that matters and to inspire wonder and action on behalf of all species and the Earth.

Environment
4
Maine Audubon Society

Maine Audubon works to conserve Maine's wildlife and habitat by engaging people of all ages in education, conservation, and action. We are helping the people of Maine become the nation's most informed and effective stewards of wildlife and…

Environment
5
Penobscot Community Health Center

Penobscot Community Health Center (PCHC) is a non-profit organization incorporated in 1997 that is governed by a Board of community volunteers and is the largest Federally Qualified Health Center in Maine. PCHC is driven by its mission…

Health
6
Presumpscot Regional Land Trust

We engage with communities to conserve, steward, and provide access to local lands and clean water for current and future generations to enjoy.

—
7
Bridgton Public Library

Public library

Education
8
Bangor Public Library Association

To provide free library services to the residents of the bangor area.

—
9
Maine Historical Society

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…

Arts & Culture
10
Royal River Conservation Trust

The royal river conservation trust (rrct) is a regional land trust working primarily in seven maine municipalities. the trust owns,cares for, and stewards land and conservation easements to protect land and water resources for the general…

Environment
11
Kennebunk Land Trust

Kennebunk Land Trust's mission is to permanently conserve and steward land to benefit natural and human communities.

Environment
12
Maine Federation of Farmers Markets

MFFM's mission is to cultivate a vibrant, sustainable, farmers' market community as a vital part of Maine's local food network. The federation works with farmers, consumers and communities to make wholesome, locally-grown food available to…

Food & Nutrition
How this is measured
The grantee most central to the portfolio’s shape is Bangor Public Library; the most unlike its peers is Friends of the Wilmington Memorial Library. 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

18 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. 18 of the 24 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)
1
Early backer (in before they grew)
18/18
Grantees still filing
10/18
Grew since first funded

Where the money sits, by cause and then by grantee

GREAT POND MOUNTAIN CONSERVATION TR: $22,000 · OtherGREAT POND MOUNTAIN CONSERVATION TRALAMOOSOOK LAKE ASSOCIATION: $10,000 · OtherALAMOOSOOK LAKE ASSOCIATIONORONO LAND TRUST: $8,000 · OtherORONO LAND TRUSTALZHEIMER'S ASSOCIATION MAINE CHAP: $8,000 · OtherALZHEIMER'S ASSOCIATION MAINE CHAPWILMINGTON HIGH SCHOOL: $5,000 · OtherWILMINGTON HIGH SCHOOLBANGOR PUBLIC LIBRARY: $4,000 · OtherBANGOR PUBLIC LIBRARYGOOD SAMARITAN AGENCY: $4,000 · OtherGOOD SAMARITAN AGENCYGOOD SHEPARD FOOD BANK OF ME: $4,000 · OtherGOOD SHEPARD FOOD BANK OF MEMABEL WADSWORTH WOMEN'S HEALTH CTR: $4,000 · OtherMABEL WADSWORTH WOMEN'S HEALTH CTR+4 more: $3,500 · OtherPENOBSCOT THEATRE COMPANY: $40,000 · Arts & CulturePENOBSCOT THEATRE COMPAN…Maine Public Broadcasting Corporation: $6,000 · Arts & CultureMaine Public Broadcastin…DUNSTABLE RURAL LAND TRUST: $25,000 · EnvironmentDUNSTABLE RURAL LAND…BANGOR LAND TRUST: $14,000 · EnvironmentBANGOR LAND TRUSTBANGOR YOUNG MEN'S CHRISTIAN ASSOCIATION: $22,000 · Human ServicesBANGOR YOUN…RIVER CITY ATHLETICS: $17,000 · Recreation & SportsRIVER CIT…Maine Community Foundation Inc: $6,000 · PhilanthropyWERE ONE WILMINGTON INC Formerly Women of Wilmington: $2,000 · PhilanthropyHEART OF MAINE UNITED WAY: $1,000 · PhilanthropyLiteracy Volunteers of Bangor: $8,000 · EducationFriends of the Wilmington Memorial Library: $500 · Education
Other$72,500Arts & Culture$46,000Environment$39,000Human Services$22,000Recreation & Sports$17,000Philanthropy$9,000Education$8,500

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPENOBSCOT THEATRE COMPANY: $40,000 over 2y, 1.1% of budgetDUNSTABLE RURAL LAND TRUST: $25,000 over 4y, 3.9% of budgetBANGOR YOUNG MEN'S CHRISTIAN ASSOCIATION: $22,000 over 4y, 0.1% of budgetGREAT POND MOUNTAIN CONSERVATION TR: $22,000 over 4y, 1.1% of budgetRIVER CITY ATHLETICS: $17,000 over 2y, 3.1% of budgetBANGOR LAND TRUST: $14,000 over 4y, 4.0% of budgetLiteracy Volunteers of Bangor: $8,000 over 4y, 1.0% of budgetORONO LAND TRUST: $8,000 over 3y, 1.3% of budgetMaine Public Broadcasting Corporation: $6,000 over 3y, 0.0% of budgetMaine Community Foundation Inc: $6,000 over 3y, 0.0% of budgetBANGOR PUBLIC LIBRARY: $4,000 over 4y, 0.0% of budgetGOOD SAMARITAN AGENCY: $4,000 over 4y, 0.2% of budgetMABEL WADSWORTH WOMEN'S HEALTH CTR: $4,000 over 4y, 0.1% of budgetWERE ONE WILMINGTON INC Formerly Women of Wilmington: $2,000 over 2y, 1.4% of budgetGood Shepherd Food Bank: $1,000 over 1y, 0.0% of budgetWILMINGTON COMMUNITY FUND INC: $1,000 over 1y, 2.4% of budgetHEART OF MAINE UNITED WAY: $1,000 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.

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…Leonard and Renee Min…Stephen & Tabitha Kin…Bangor Savings Bank F…The C Walder Parke Fa…Harnum Family Foundat…Davis Family Foundati…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
Maine Community Foundation IncME26.5× affinity11 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maine Community Foundation Inc · Leonard and Renee Minsky Charitable Trst · Stephen & Tabitha King Foundation Inc · Bangor Savings Bank Foundation · The C Walder Parke Family Foundation · Harnum Family Foundation · Davis Family Foundation · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile 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 The Oldenburg Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Oldenburg Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%0%1%3%5%funder's share of their income ↑0%13%25%38%50%share of the org’s income from government →
    no gov moneyreceives it· size = income
    3get 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 · 0–50%
    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.

    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 24 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 Oldenburg Family’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