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· Private foundation

Sea Otter 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.

$13k
Granted FY2025still arriving
2
Grants FY2025still arriving
2
States reached
$11k
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.

Animals$74kEducation$62kEnvironment$17kFood & Nutrition$11kCommunity Improvement$10kPublic Safety & Disaster$6kHuman Services$3kReligion$2k
02FY2025 · 2 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $2k
  • $10k–50k1 grant · $11k
$11,050
Median grant
2
States reached
$59k
Total assets
Largest grants
RecipientAmount
CONWAY AREA HUMANE SOCIETY$11,050
GOOD SHEPHERD FOOD BANK$2,000
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:

Dollar for dollar, its grants (FY18–25) land where the poverty rate runs at 10%, against an area that typically sits at 12%. 49% of its dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 12%WORLD CENTRAL KITCHEN: $5k → 14%WESTOVER SCHOOL INC: $60k → 12%ST JOHN'S EPISCOPAL CHURCH: $2k → 12%CONWAY AREA HUMANE SOCIETY: $11k → 9%PAMPERED PET PORTER: $47k → 7%KEZAR LAKE WATERSHED ASSOCIATION: $6k → 13%MAINE GRAIN ALLIANCE: $9k → 15%WESTOVER SCHOOL INC: $2k → 12%CONWAY AREA HUMANE SOCIETY: $10k → 9%PAMPERED PET PORTER: $10k → 7%KEZAR LAKE WATERSHED ASSOCIATION: $6k → 13%PAMPERED PET PORTER: $5k → 9%YARMOUTH COMMUNITY GARDEN: $500 → 7%KEZAR LAKE WATERSHED ASSOCIATION: $5k → 13%CONWAY AREA HUMANE SOCIETY: $5k → 9%YARMOUTH COMMUNITY GARDEN: $500 → 7%FRYEBURG RESCUE ASSOCIATION: $500 → 13%CONWAY AREA HUMANE SOCIETY: $4k → 9%CONWAY AREA HUMANE SOCIETY: $3k → 9%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.
$178k · 6 repeat orgs$20k to everyone else

Grantees it renews have grown median revenue +32% since the first grant, against +27% for those funded once.

6 repeat relationships: 2 still active in FY2025, 4 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

6
5

Total granted

$178k
$20k

Median revenue growth · since first grant

+32%
+27%

Still filing today

67%
80%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’18’19’20’21’22’23’24’25
EducationAnimalsFood & NutritionEnvironmentInternationalHuman ServicesOther
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

  • WS
    WESTOVER SCHOOL INC
    2× · 2018–2023 · $62k · revenue +14%
  • CA
    CONWAY AREA HUMANE SOCIETY
    5× · 2021–2025 · $33k · revenue +32%
  • KL
    KEZAR LAKE WATERSHED ASSOCIATION
    3× · 2020–2023 · $17k · revenue +49%

Funded once

  • MG
    MAINE GRAIN ALLIANCEgraduated
    one grant, 2020 · $9k · revenue +34%
  • WORLD CENTRAL KITCHEN
    one grant, 2022 · $5k · revenue -40%
  • TT
    THROUGH THESE DOORS
    one grant, 2023 · $3k · revenue +9%
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
Connecticut Humane Society

The connecticut humane society is the leading resource in the state for companion animal welfare, enriching the lives of families and communities through adoption services, medical care, education, and prevention of cruelty.

Animals
2
New England Fishermen's Stewardship Association

Alliance of wild harvesters of the waters off of new england dedicated, to educating the public about how best to manage our seafood resources through sound science & best practices of conversation used by fishermen

—
3
Fork Food Lab

Fork Food Lab is a nonprofit food business incubator and shared commercial kitchen focused on growing the local food economy. We support the growth of sustainable Maine-based businesses by providing entrepreneurs with work space,…

Environment
4
Wolfe's Neck Farm Foundation

The mission of Wolfe's Neck Center for Agriculture & The Environment is to transform our relationship with farming and food for a healthier planet.

Philanthropy
5
Food & Water Watch

Food & water watch conducts extensive research and public education to ensure the food and water we consume is safe, accessible and sustainably produced. so we can all enjoy and trust in what we eat and drink, we help people take charge of…

Food & Nutrition
6
Wholesome Wave Inc

Wholesome wave, inc. inspires underserved consumers to make healthier food choices by increasing affordable access to fresh, local and regional food.

Environment
7
Maine GearShare

To provide access to outdoor gear and know-how through a collaborative, equity-centered approach.

Recreation & Sports
8
Maine Farm Bureau Association

An agricultural organization that promotes agriculture, farm research and foster cooperative buying for basic farm supplies for the mutual benefit of its members.

—
9
Western Berks Ambulance Association

To provide skilled, professional ambulance service to those in need of basic and advanced life support, and related services, in the western berks county area.

—
10
Central Aroostook County Emergency Medical Services Authority

Emergency ambulance services for 911 response. We primarily serve the three adjacent communities of Mars Hill Blaine and Bridgewater Maine and the unorganized townships nearby.

—
11
Sheboygan County Food Bank Inc

Lead sheboygan county's efforts to increase the food security of its residents by distributing healthy emergency food and fostering innovative partnerships.

Food & Nutrition
12
Food Well Alliance

Food well alliance provides resources and support to local growers to connect and build healthier communities.

Food & Nutrition
How this is measured
The grantee most central to the portfolio’s shape is World Central Kitchen Inc; the most unlike its peers is Kezar Lake Watershed Association. 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

8 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. 8 of the 11 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)
0
Early backer (in before they grew)
8/8
Grantees still filing
6/8
Grew since first funded

Where the money sits, by cause and then by grantee

WESTOVER SCHOOL INC: $62,000 · EducationWESTOVER SCHOOL INCMAINE GRAIN ALLIANCE: $9,000 · EducationMAINE GRAIN ALLIANCEIndividual grant recipient: $61,500 · OtherIndividual grant recipient+2 more: $3,000 · OtherCONWAY AREA HUMANE SOCIETY: $33,050 · AnimalsCONWAY AREA HUMANE …KEZAR LAKE WATERSHED ASSOCIATION: $17,000 · EnvironmentKEZAR LAK…WORLD CENTRAL KITCHEN: $5,000 · InternationalGOOD SHEPHERD FOOD BANK: $3,000 · Food & NutritionTHROUGH THESE DOORS: $3,000 · Human ServicesFRYEBURG RESCUE ASSOCIATION: $500 · Public Safety & Disaster
Education$71,000Other$64,500Animals$33,050Environment$17,000International$5,000Food & Nutrition$3,000Human Services$3,000Public Safety & Disaster$500

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetWESTOVER SCHOOL INC: $62,000 over 2y, 0.3% of budgetCONWAY AREA HUMANE SOCIETY: $33,050 over 5y, 1.0% of budgetKEZAR LAKE WATERSHED ASSOCIATION: $17,000 over 3y, 5.4% of budgetMAINE GRAIN ALLIANCE: $9,000 over 1y, 4.3% of budgetWORLD CENTRAL KITCHEN: $5,000 over 1y, 0.0% of budgetGOOD SHEPHERD FOOD BANK: $3,000 over 2y, 0.0% of budgetTHROUGH THESE DOORS: $3,000 over 1y, 0.1% of budgetFRYEBURG RESCUE ASSOCIATION: $500 over 1y, 0.1% 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.

Donor Advised Charitable Giving IncCO6.8× affinity5 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Sea Otter Foundation funds: left to right is the share of its income from government, bottom to top the share from Sea Otter Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%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
    1get no government money at all
    2report 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.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to Sea Otter Foundation?

    Find your warmest path to Sea Otter 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.

    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 11 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

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