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Nautilus Foundation Inc at a glance

· Private foundation

Nautilus Foundation Inc

Its FY2025 filing reports that it accepted unsolicited grant applications.

$129k
Granted FY2025still arriving
58
Grants FY2025still arriving
10
States reached
$14k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Arts & Culture$190kEducation$153kEnvironment$128kReligion$55kYouth Development$45kRecreation & Sports$31kScience & Tech$30kHealth$23kOther$0
02FY2025 · 58 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k54 grants · $86k
  • $10k–50k4 grants · $44k
$1,500
Median grant
10
States reached
$803k
Total assets
Largest grants
RecipientAmount
THE GARDEN CONSERVATORY$13,500
LAND AND GARDEN PRESERVE$10,000
KENT SCHOOL$10,000
MAINE SEACOAST MISSION$10,000
NORTHEAST HARBOR SAILING SCHOOL$5,000
MAINE COAST HERITAGE TRUST$5,000
NORTHEAST HARBOR LIBRARY SCHOLARSHIP FUND$5,000
TURNING POINT USA$4,000
NEW YORK BOTANICAL GARDENS$4,000
ST DAVIDS CHURCH$4,000
MDI BIOLOGICAL LABORATORY$3,000
FRIENDS OF ACADIA$3,000
SEAL COVE AUTO MUSEUM$3,000
SOCIETY OF THE FOUR ARTS$2,500
HILL SCHOOL$2,500
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 (FY24–25, $4k) land where the poverty rate runs at 9%, against an area that typically sits at 11%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%KIEVE WAVUS EDUCATION INC: $2k → 9%KIEVE WAVUS EDUCATION INC: $2k → 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.

Which US states its grants reach

ME
NY
OH
PA
CT
CA
CO
MD
AZ
NC
DC
FL
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.

99%of every dollar goes to organizations it has funded before.
$711k · 69 repeat orgs$7k to everyone else

69 repeat relationships: 57 still active in FY2025, 12 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

69
9

Total granted

$711k
$7k

Median revenue growth · since first grant

+22%
+65%

Still filing today

65%
67%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $500 went to new ones.

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

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

’19’20’21’22’23’24’25
EducationArts & CultureEnvironmentAnimalsHealthPublic Safety & DisasterOther
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

  • KS
    KENT SCHOOL
    6× · 2020–2025 · $58k · revenue +9%
  • TS
    The Society of the Four Arts Inc
    7× · 2019–2025 · $55k · revenue +989%
  • MS
    Maine Seacoast Mission
    6× · 2020–2025 · $44k · revenue +98%

Funded once

  • MM
    METROPOLITAN MUSEUM OF ARTgraduated
    one grant, 2020 · $1k · revenue +119%
  • NORTON MUSEUM OF ART INCgraduated
    one grant, 2020 · $1k · revenue +88%
  • SM
    ST MARYS CHURCH HAMILTON VILLAGE
    one grant, 2024 · $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
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
2
Rhode Island School of Design

The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…

Education
3
Hampden-Sydney College

Since 1775, the mission of Hampden-Sydney College has been to form good men and good citizens in an atmosphere of sound learning.

Education
4
Saint Anselm College

Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…

Education
5
Harvard Conservation Trust

To preserve the unique character and natural resources of harvard.

Environment
6
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
7
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
8
The President and Trustees of Colby College

to provide a rigorous and transformative liberal arts education that prepares students to become thoughtful, engaged citizens.

Education
9
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
10
Trustees of Dartmouth College

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.

Education
11
New York School of Interior Design

New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…

Education
12
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
How this is measured
The grantee most central to the portfolio’s shape is Kent School; the most unlike its peers is Seal Cove Auto Museum. 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

51 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. 51 of the 79 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.

1
Load-bearing (≥25% of a budget)
12
Early backer (in before they grew)
51/51
Grantees still filing
38/51
Grew since first funded

Where the money sits, by cause and then by grantee

THE GARDEN CONSERVATORY: $47,000 · OtherTHE GARDEN CONSERVATORYMount Desert Land and Garden Preserve: $46,000 · OtherMount Desert Land and Garden PreserveMaine Seacoast Mission: $44,000 · OtherMaine Seacoast MissionST DAVIDS CHURCH: $24,100 · OtherST DAVIDS CHURCHNORTHEAST HARBOR LIBRARY SCHOLARSHIP FUND: $21,000 · OtherMDI BIOLOGICAL LABORATORY: $20,500 · OtherCOLLEGE OF THE ATLANTIC: $16,000 · OtherSEAL COVE AUTO MUSEUM: $14,500 · Other+38 more: $162,500 · Other+38 moreKENT SCHOOL: $58,000 · EducationKENT SCHOOLTHE HILL SCHOOL: $11,500 · EducationTHE HILL SCHOOLPRAGER UNIVERSITY FOUNDATION: $8,750 · EducationPRAGER UNIVERSITY …DUKE UNIVERSITY: $5,750 · EducationNORTHEAST HARBOR LIBRARY: $5,500 · EducationPALM BEACH DAY ACADEMY INC: $4,700 · Education+7 more: $20,250 · Education+7 moreMaine Coast Heritage Trust: $31,250 · EnvironmentMaine Coast…NEW YORK BOTANICAL GARDEN: $19,000 · EnvironmentNEW YORK BO…Friends of Acadia: $16,500 · EnvironmentFriends of …THE GARDEN CLUB OF PALM BEACH INC: $4,000 · EnvironmentTHE GARDEN …OCEANA INC: $3,000 · EnvironmentThe Society of the Four Arts Inc: $54,500 · Arts & CultureThe Societ…PALM BEACH CULTURAL INNOVATION CENTER: $7,000 · Arts & CulturePALM BEACH…Independence Seaport Museum: $2,700 · Arts & CultureNational Capital Radio and Television Museum: $2,500 · Arts & Culture+2 more: $2,000 · Arts & CultureNORTHEAST HARBOR SAILING SCHOOL: $31,000 · Recreation & SportsACADIA WILDLIFE FOUNDATION: $6,250 · AnimalsTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $4,000 · AnimalsPASADENA HUMANE: $3,500 · AnimalsPeggy Adams Animal Rescue League of the Palm Beaches Inc: $3,000 · Animals+1 more: $500 · AnimalsWillowind Therapeutic Riding Center Inc: $9,500 · HealthSave the Storks: $4,500 · HealthRehabilitation Center for Children and Adults Inc: $3,000 · Health
Other$395,600Education$114,450Environment$73,750Arts & Culture$68,700Recreation & Sports$31,000Animals$17,250Health$17,000

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 budgetKENT SCHOOL: $58,000 over 6y, 0.0% of budgetThe Society of the Four Arts Inc: $54,500 over 7y, 0.1% of budgetMount Desert Land and Garden Preserve: $46,000 over 6y, 0.4% of budgetMaine Seacoast Mission: $44,000 over 6y, 0.2% of budgetMaine Coast Heritage Trust: $31,250 over 6y, 0.0% of budgetNORTHEAST HARBOR SAILING SCHOOL: $31,000 over 6y, 2.1% of budgetNEW YORK BOTANICAL GARDEN: $19,000 over 6y, 0.0% of budgetFriends of Acadia: $16,500 over 6y, 0.1% of budgetCOLLEGE OF THE ATLANTIC: $16,000 over 5y, 0.0% of budgetSEAL COVE AUTO MUSEUM: $14,500 over 5y, 0.8% of budgetTHE HILL SCHOOL: $11,500 over 6y, 0.0% of budgetTURNING POINT USA INC: $11,500 over 3y, 0.0% of budgetWillowind Therapeutic Riding Center Inc: $9,500 over 6y, 0.8% of budgetPRAGER UNIVERSITY FOUNDATION: $8,750 over 3y, 0.0% of budgetAMERICAN ACADEMY IN ROME: $7,500 over 6y, 0.0% of budgetPALM BEACH CULTURAL INNOVATION CENTER: $7,000 over 2y, 0.1% of budgetACADIA WILDLIFE FOUNDATION: $6,250 over 6y, 1.0% of budgetDUKE UNIVERSITY: $5,750 over 6y, 0.0% of budgetNORTHEAST HARBOR LIBRARY: $5,500 over 6y, 0.1% of budgetPALM BEACH DAY ACADEMY INC: $4,700 over 6y, 0.0% of budgetSave the Storks: $4,500 over 2y, 0.1% of budgetTHE GARDEN CLUB OF PALM BEACH INC: $4,000 over 2y, 2.5% of budgetBOWNE HOUSE HISTORICAL SOCIETY INC: $4,000 over 2y, 2.2% of budgetFRIENDS OF ROCK HALL INC: $4,000 over 2y, 59% of budgetTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $4,000 over 4y, 0.0% of budgetBuckminster Fuller Institute: $4,000 over 2y, 0.0% of budgetPALM BEACH FOR CHRIST INC: $4,000 over 2y, 1.2% of budgetKieve Wavus Education Inc: $4,000 over 2y, 0.0% of budgetGULF STREAM SCHOOL INC: $3,500 over 6y, 0.0% of budgetPASADENA HUMANE: $3,500 over 4y, 0.0% of budgetTRINITY COLLEGE: $3,000 over 4y, 0.0% of budgetPRESIDENT AND TRUSTEES OF BATES COLLEGE: $3,000 over 4y, 0.0% of budgetOCEANA INC: $3,000 over 2y, 0.0% of budgetThe Palm Beach Police and Fire Foundation Inc: $3,000 over 5y, 0.0% of budgetPeggy Adams Animal Rescue League of the Palm Beaches Inc: $3,000 over 6y, 0.0% of budgetRehabilitation Center for Children and Adults Inc: $3,000 over 6y, 0.0% of budgetSALISBURY SCHOOL INC: $3,000 over 4y, 0.0% of budgetGREENWICH COUNTRY DAY SCHOOL INC: $2,750 over 5y, 0.0% of budgetIndependence Seaport Museum: $2,700 over 6y, 0.0% of budgetNational Capital Radio and Television Museum: $2,500 over 6y, 0.5% of budgetMOUNT DESERT ISLAND HISTORICAL SOCIETY: $2,500 over 6y, 0.4% of budgetTHE PUTNAM INDIAN FIELD SCHOOL INC: $2,500 over 6y, 0.0% of budgetGARRISON FOREST SCHOOL INC: $2,500 over 5y, 0.0% of budgetBEDFORD HISTORICAL SOCIETY: $2,000 over 2y, 1.3% of budgetMETROPOLITAN MUSEUM OF ART: $1,000 over 1y, 0.0% of budgetNortheast Harbor Ambulance Service Inc: $1,000 over 2y, 0.1% of budgetNORTON MUSEUM OF ART INC: $1,000 over 1y, 0.0% of budgetPALM BEACH AREA TENNIS PATRONS INC: $1,000 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.

  • Who funds KENT SCHOOL ↗
  • Who funds The Society of the Four Arts Inc ↗
  • Who funds Mount Desert Land and Garden Preserve ↗
  • Who funds Maine Seacoast Mission ↗
  • Who funds Maine Coast Heritage Trust ↗
  • Who funds NORTHEAST HARBOR SAILING SCHOOL ↗
  • Who funds NEW YORK BOTANICAL GARDEN ↗
  • Who funds Friends of Acadia ↗
  • Who funds COLLEGE OF THE ATLANTIC ↗
  • Who funds SEAL COVE AUTO MUSEUM ↗
  • Who funds THE HILL SCHOOL ↗
  • Who funds TURNING POINT USA INC ↗
  • Who funds Willowind Therapeutic Riding Center Inc ↗
  • Who funds PRAGER UNIVERSITY FOUNDATION ↗
  • Who funds AMERICAN ACADEMY IN ROME ↗
  • Who funds PALM BEACH CULTURAL INNOVATION CENTER ↗
  • Who funds ACADIA WILDLIFE FOUNDATION ↗
  • Who funds DUKE UNIVERSITY ↗
  • Who funds NORTHEAST HARBOR LIBRARY ↗
  • Who funds PALM BEACH DAY ACADEMY INC ↗
  • Who funds Save the Storks ↗
  • Who funds THE GARDEN CLUB OF PALM BEACH INC ↗
  • Who funds BOWNE HOUSE HISTORICAL SOCIETY INC ↗
  • Who funds FRIENDS OF ROCK HALL 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.

Ethel D Colket Founda…Colket Family Foundat…Florence V Burden Fou…Gerrish H Milliken Fo…Cornelia Cogswell Ros…The Widgeon Point Cha…Maine Community Found…E Newbold & Margaret …Community Foundation …The Mitchell P Rales …The Gilbert and Ildik…Janet Stone Jones Fou…
Ethel D Colket FoundationPA22× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ethel D Colket Foundation · Colket Family Foundation · Florence V Burden Foundation · Gerrish H Milliken Foundation 009209-009 · Cornelia Cogswell Rossi Foundation Inc · The Widgeon Point Charitable Foundation · Maine Community Foundation Inc · E Newbold & Margaret Dupont Smith F Foundation (Dba Thornedge Fdn) · Community Foundation for Palm Beach and Martin Counties Inc · The Mitchell P Rales Family Foundation · The Gilbert and Ildiko Butler Family Foundation Inc · Janet Stone Jones 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 Nautilus Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Nautilus Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 110%4%15%34%60%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →median 0%
  • Trinity College: 0% of income from government
  • Palm Beach Day Academy Inc: 0% of income from government
no gov moneyreceives it· size = income
11get no government money at all
13report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–30%
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 Nautilus Foundation Inc?

Find your warmest path to Nautilus Foundation Inc 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 79 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 Nautilus’ 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