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Nevada · Private foundation

The Koehler Mahlstedt Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$282k
Granted FY2025(still arriving)
13
Grants FY2025
8
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$75,000
Organizations funded a year
6 to 14
FY2018 to FY2024
States reached, FY2025
8
Total assets, FY2025
$1.9M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 0% of the organizations The Koehler Mahlstedt Family Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’18’19’20’21’22’23’24
AnimalsHuman ServicesEnvironmentArts & CultureEducationReligionOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving12$232k58%
FY20248$165k0%
FY202311$168k36%
FY20229$142k44%
FY20219$343k33%
FY202014$146k43%
FY20197$148k29%
FY20186$75k50%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$453kEnvironment$451kAnimals$183kArts & Culture$78kFood & Nutrition$37kYouth Development$17kReligion$15kCommunity Improvement$12kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
NY
NV
CA
CO
MD
AZ
NM
TX

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 34 grantees

What it could do for these grantees

Plus 3 recipients with no EIN on record ($151k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Koehler Mahlstedt Family Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Armand Hammer United World College of the Amer: $372,575 over 8y, 0.2% of budgetLiving Desert The: $290,000 over 4y, 0.8% of budgetSan Diego Humane Society and Spca: $127,000 over 3y, 0.1% of budgetMcCallum Theatre Foundation Inc: $98,350 over 2y, 11% of budgetSaint James School: $95,000 over 8y, 0.1% of budgetThe San Diego Symphony Orchestra Association: $50,000 over 1y, 0.1% of budgetCLEAN UP THE CAYES dba CLEAN UP THE LAKE: $50,000 over 3y, 3.2% of budgetZoological Society of San Diego: $25,000 over 1y, 0.0% of budgetMonterey Bay Aquarium Foundation: $25,000 over 5y, 0.0% of budgetSave the Redwoods League: $25,000 over 1y, 0.0% of budgetSouthern California Labrador Retriever Rescue: $18,000 over 4y, 4.3% of budgetEddy House: $17,000 over 4y, 0.3% of budgetCityteam Ministries: $14,960 over 3y, 0.0% of budgetAspen Entrepreneurs Corporation: $12,000 over 1y, 9.1% of budgetVolunteer Centers of Santa Cruz County: $10,000 over 1y, 0.1% of budgetScripps Health: $10,000 over 1y, 0.0% of budgetSierra Senior Services Dba Meals on Wheels Tahoe: $8,600 over 3y, 0.6% of budgetBurn Pits 360: $5,000 over 1y, 1.9% of budgetLake Tahoe Wildlife Care Inc: $5,000 over 1y, 0.5% of budgetSouthwest Oasis Labrador Rescue Inc: $5,000 over 1y, 2.0% of budgetGary Sinise Foundation: $5,000 over 1y, 0.0% of budgetDiamond Peak Ski Education Foundation: $3,000 over 2y, 0.5% of budgetHumane Society of Sonoma County: $2,000 over 1y, 0.0% of budgetSecond Harvest of Silicon Valley: $1,800 over 1y, 0.0% of budgetAlameda County Community Food Bank: $1,000 over 1y, 0.0% of budgetEpiscopal Relief and Development: $500 over 1y, 0.0% of budgetHunger at Home: $500 over 1y, 0.0% of budgetPet Network Humane Society: $500 over 1y, 0.1% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 28.

Nonprofits that may fit its grantmaking

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.

Tahoe Community FoundationNV15.5× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Tahoe Community Foundation · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · The Pfizer Foundation Inc · The Blackbaud Giving Fund · Network for Good · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · American Endowment Foundation · National Philanthropic Trust · Paypal Charitable Giving Fund · Vanguard Charitable Endowment Program

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.

Compare The Koehler Mahlstedt Family Foundation with peer funders

About The Koehler Mahlstedt Family Foundation

How much does The Koehler Mahlstedt Family Foundation give?
The Koehler Mahlstedt Family Foundation reported 13 grants totaling $282,250 in its FY2025 IRS filing. It funded between 6 and 14 organizations a year over FY2018 to FY2024.
What does The Koehler Mahlstedt Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (36%), Environment (36%), Animals (14%).
Who are The Koehler Mahlstedt Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: The Armand Hammer United World College of the Amer ($373k), Living Desert The ($290k), San Diego Humane Society and Spca ($127k).
Does The Koehler Mahlstedt Family Foundation fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Does The Koehler Mahlstedt Family Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as The Koehler Mahlstedt Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Tahoe Community Foundation, Morgan Stanley Global Impact Funding Trust Inc, The Bank of America Charitable Foundation Inc.
Where is The Koehler Mahlstedt Family Foundation based?
The Koehler Mahlstedt Family Foundation is based in NV.

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 39 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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