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Tahoe Maritime Foundation at a glanceAlso receives grants: funding profile →

· Private foundation

Tahoe Maritime Foundation

THE PRIMARY FUNCTION OF THE MUSEUM IS TO STIMULATE INTEREST IN, INCREASE KNOWLEDGE OF, AND MAINTAIN WATERCRAFT AND MARINE ARTIFACTS SIGNIFICANT IN LAKE TAHOE'S MARITIME HISTORY THROUGH HISTORIC PRESERVATION, INTERPRETATION AND PUBLIC EDUCATION.

$220k
Granted FY2025still arriving
11
Grants FY2025still arriving
5
States reached
$30k
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, FY2022 to 2025.

Arts & Culture$354kYouth Development$242kEnvironment$89kRecreation & Sports$60kEducation$46kHuman Services$25kPhilanthropy$20k
02FY2025 · 11 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $5k
  • $10k–50k10 grants · $215k
$20,000
Median grant
5
States reached
$4.3M
Total assets
Largest grants
RecipientAmount
THE MARINERS' MUSEUM$30,000
WESTERN FLYER FOUNDATION$25,000
BOYS & GIRLS CLUB OF LAKE TAHOE$25,000
ANTIQUE BOAT MUSEUM$24,000
CALL OF THE SEA$23,000
MINNESOTA LAKES MARITIME SOCIETY$20,000
WOODEN BOATS FOR VETERANS FOUNDATION$20,000
PENINSULA YOUTH SAILING FOUNDATION$18,000
LEAGUE TO SAVE LAKE TAHOE$15,000
NORTH LAKE TAHOE HISTORICAL SOCIETY$15,000
TAHOE COMMUNITY SAILING FOUNDATION INC$5,000
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 (FY22–25) land where the poverty rate runs at 11%, against an area that typically sits at 7%. 88% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 7%MINNESOTA LAKES MARITIME SOCIETY: $20k → 9%NORTH LAKE TAHOE HISTORICAL SOCIETY: $35k → 6%PENINSULA YOUTH SAILING FOUNDATION: $18k → 7%BOY SCOUTS OF AMERICA SILICON VALLEY MONTEREY BAY COUNCIL: $26k → 8%LEAGUE TO SAVE LAKE TAHOE: $15k → 8%WOODEN BOATS FOR VETERANS FOUNDATION: $25k → 8%UC REGENTS OF CALIFORNIA: $21k → 10%WESTERN FLYER FOUNDATION: $25k → 12%FRIENDS OF LOS ANGELES MARITIME MUSEUM: $25k → 14%ANTIQUE BOAT MUSEUM: $24k → 14%THE MARINERS' MUSEUM: $50k → 17%CLEAN UP THE CAYES: $25k → 8%TAHOE COMMUNITY SAILING FOUNDATION INC: $5k → 10%CHESAPEAKE BAY MARITIME MUSEUM INC: $20k → 10%PENOBSCOT MARINE MUSEUM: $5k → 13%MINNESOTA LAKES MARITIME SOCIETY: $20k → 9%SIERRA STATE PARKS FOUNDATION: $22k → 6%PENINSULA YOUTH SAILING FOUNDATION: $5k → 7%BOY SCOUTS OF AMERICA SILICON VALLEY MONTEREY BAY COUNCIL: $23k → 8%WOODEN BOATS FOR VETERANS FOUNDATION: $20k → 8%SOUTHBAY YOUTH MARITIME FOUNDATION: $40k → 10%ANTIQUE BOAT MUSEUM: $18k → 14%THE MARINERS' MUSEUM: $32k → 17%TAHOE COMMUNITY SAILING FOUNDATION INC: $5k → 10%MINNESOTA LAKES MARITIME SOCIETY: $20k → 9%SIERRA STATE PARKS FOUNDATION: $15k → 6%SPAULDING WOODEN BOAT CENTER: $15k → 8%SOUTHBAY YOUTH MARITIME FOUNDATION: $15k → 10%ANTIQUE BOAT MUSEUM: $10k → 14%THE MARINERS' MUSEUM: $30k → 17%TAHOE COMMUNITY SAILING FOUNDATION INC: $5k → 10%MINNESOTA LAKES MARITIME SOCIETY: $10k → 9%NORTH LAKE TAHOE HISTORICAL SOCIETY: $15k → 6%WOODEN BOATS FOR VETERANS FOUNDATION: $9k → 8%ANTIQUE BOAT MUSEUM: $6k → 14%TAHOE COMMUNITY SAILING COUNCIL FOUNDATION INC: $3k → 10%TAHOE COMMUNITY SAILING FOUNDATION INC: $2k → 10%U C DAVIS TAHOE ENVIRONMENTAL RESEARCH CENTER: $20k → 10%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.

69%of every dollar goes to organizations it has funded before.
$573k · 10 repeat orgs$263k to everyone else

10 repeat relationships: 9 still active in FY2025, 1 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

10
9

Total granted

$573k
$223k

Median revenue growth · since first grant

0%
+2%

Still filing today

90%
67%

New vs renewed · share of each year

In FY2025, 82% of grant dollars renewed an existing relationship; $40k 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 & CultureYouth DevelopmentRecreation & SportsPhilanthropyEnvironmentEducationOther
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

  • BG
    Boys & Girls Club of Lake Tahoe
    4× · 2022–2025 · $95k · revenue +32%
  • TA
    THE ANTIQUE BOAT MUSEUM
    4× · 2022–2025 · $57k · revenue +136%
  • BS
    BOY SCOUTS OF AMERICA 55 SILICON VALLEY MONTEREY BAY COUNCIL
    2× · 2022–2023 · $49k · revenue +82%

Funded once

  • SY
    SOUTHBAY YOUTH MARITIME FOUNDATION
    one grant, 2022 · $55k · revenue -19%
  • SS
    Sierra State Parks Foundation
    one grant, 2022 · $37k · revenue +8%
  • CU
    CLEAN UP THE CAYES dba CLEAN UP THE LAKE
    one grant, 2024 · $25k · revenue 0%
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
New Jersey Museum of Boating

Preserve and display New Jersey's rich boating history.

Arts & Culture
2
Moosehead Marine Museum

The museum seeks to maintain and preserve the history of the region around moosehead lake through cruises, tours, and charters of the restored, last working lake steamer on moosehead lake.

Arts & Culture
3
Tahoe Maritime Foundation
Philanthropy
4
Center for Wooden Boats

The Center for Wooden Boats promotes Northwest Maritime Heritage through education, interpretation and hands-on experience in building, maintaining and using historic small craft.

Recreation & Sports
5
Santa Cruz Sailing Foundation
Philanthropy
6
California Surf Museum

The California Surf Museum serves as an international repository and resource center on the lifestyle sport of surfing through capturing,preserving and chronicling its art, culture and heritage for the education and enjoyment of current…

Arts & Culture
7
Santa Barbara Maritime Museum

Creating excellent exhibits and educational experiences that celebrate the santa barbara channel and illuminate our rich connections with the sea.

Arts & Culture
8
Long Island Maritime Museum

The stated purpose of the museum shall be:a.to preserve long island's maritime history and heritage for educational purposes.b.to purchase, collect, restore and preserve boats, vessels and related equipment having to do with the past and…

Arts & Culture
9
Encinal Sailing Foundation
Philanthropy
10
No Salt Sailing
Recreation & Sports
11
Sail Power and Steam Museum

To celebrate, honor, experience, and share the story of Maine's maritime heritage.

Education
12
Maine Maritime Museum

To connect people to the past, present, and future of Maine's waterways and their global reach.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Chesapeake Bay Maritime Museum Inc; the most unlike its peers is League to Save Lake Tahoe. 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

17 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 17 of the 21 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)
2
Early backer (in before they grew)
17/17
Grantees still filing
7/17
Grew since first funded

Where the money sits, by cause and then by grantee

THE MARINERS' MUSEUM: $112,300 · Arts & CultureTHE MARINERS' MUSEUMMINNESOTA LAKES MARITIME SOCIETY: $70,000 · Arts & CultureMINNESOTA LAKES MARITIME SOCIETYTHE ANTIQUE BOAT MUSEUM: $57,350 · Arts & CultureTHE ANTIQUE BOAT MUSEUMNORTH LAKE TAHOE HISTORICAL SOCIETY: $49,500 · Arts & CultureNORTH LAKE TAHOE HISTORICAL SOCIETYCHESAPEAKE BAY MARITIME MUSEUM INC: $20,000 · Arts & CultureCHESAPEAKE BAY MARITIME MUSEUM INCThe Spaulding Wooden Boat Center: $15,000 · Arts & Culture+1 more: $5,000 · Arts & CultureBoys & Girls Club of Lake Tahoe: $95,000 · OtherBoys & Girls Club of Lake TahoeWOODEN BOATS FOR VETERANS FOUNDATION: $54,000 · OtherWOODEN BOATS FOR VETERANS FOUNDATIO…BOY SCOUTS OF AMERICA 55 SILICON VALLEY MONTEREY BAY COUNCIL: $49,250 · OtherBOY SCOUTS OF AMERICA 55 SILICON VA…FRIENDS OF LOS ANGELES MARITIME MUSEUM: $25,000 · OtherFRIENDS OF LOS ANGELES MARITIME MUS…UC REGENTS OF CALIFORNIA: $20,500 · OtherUC REGENTS OF CALIFORNIAU C DAVIS TAHOE ENVIRONMENTAL RESEARCH CENTER: $20,000 · OtherU C DAVIS TAHOE ENVIRONMENTAL RESEA…SOUTHBAY YOUTH MARITIME FOUNDATION: $55,000 · Youth DevelopmentSOUTHBAY YOUT…CALL OF THE SEA: $43,000 · Youth DevelopmentCALL OF THE S…Sierra State Parks Foundation: $37,000 · Recreation & SportsPENINSULA YOUTH SAILING FOUNDATION: $23,000 · Recreation & SportsWESTERN FLYER FOUNDATION: $25,000 · EducationCLEAN UP THE CAYES dba CLEAN UP THE LAKE: $25,000 · EnvironmentTAHOE COMMUNITY SAILING FOUNDATION: $20,000 · PhilanthropyLEAGUE TO SAVE LAKE TAHOE: $15,000 · Religion
Arts & Culture$329,150Other$263,750Youth Development$98,000Recreation & Sports$60,000Education$25,000Environment$25,000Philanthropy$20,000Religion$15,000

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 budgetTHE MARINERS' MUSEUM: $112,300 over 3y, 0.5% of budgetBoys & Girls Club of Lake Tahoe: $95,000 over 4y, 0.9% of budgetMINNESOTA LAKES MARITIME SOCIETY: $70,000 over 4y, 3.5% of budgetTHE ANTIQUE BOAT MUSEUM: $57,350 over 4y, 0.8% of budgetSOUTHBAY YOUTH MARITIME FOUNDATION: $55,000 over 1y, 20% of budgetNORTH LAKE TAHOE HISTORICAL SOCIETY: $49,500 over 2y, 12% of budgetBOY SCOUTS OF AMERICA 55 SILICON VALLEY MONTEREY BAY COUNCIL: $49,250 over 2y, 0.4% of budgetCALL OF THE SEA: $43,000 over 2y, 1.5% of budgetSierra State Parks Foundation: $37,000 over 1y, 4.0% of budgetWESTERN FLYER FOUNDATION: $25,000 over 1y, 1.8% of budgetCLEAN UP THE CAYES dba CLEAN UP THE LAKE: $25,000 over 1y, 3.1% of budgetPENINSULA YOUTH SAILING FOUNDATION: $23,000 over 2y, 0.5% of budgetCHESAPEAKE BAY MARITIME MUSEUM INC: $20,000 over 1y, 0.3% of budgetTAHOE COMMUNITY SAILING FOUNDATION: $20,000 over 4y, 9.0% of budgetThe Spaulding Wooden Boat Center: $15,000 over 1y, 0.9% of budgetPENOBSCOT MARINE MUSEUM: $5,000 over 1y, 0.5% 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.

Ibm International Fou…Morgan Stanley Global…Vanguard Charitable E…Donor Advised Charita…Fidelity Investments …American Online Givin…Amazonsmile Foundation
Ibm International FoundationNY12.2× affinity4 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ibm International Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation 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 Tahoe Maritime Foundation funds: left to right is the share of its income from government, bottom to top the share from Tahoe Maritime Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%2%6%14%25%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 17%
  • Chesapeake Bay Maritime Museum Inc: 17% of income from government
no gov moneyreceives it· size = income
0get no government money at all
7report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–90%
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 Tahoe Maritime Foundation?

Find your warmest path to Tahoe Maritime 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 21 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 Tahoe Maritime’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