Skip to content

Iowa · Private foundation

Thomas & Linda Koehn 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.

$5.4M
Granted FY2025(still arriving)
23
Grants FY2025
29
Organizations funded FY2024
52%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$78,000
Largest grant, FY2025
$1,400,000
Organizations funded a year
15 to 29
FY2018 to FY2024
States reached, FY2025
5
Total assets, FY2025
$63M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 52% of the organizations Thomas & Linda Koehn Foundation funded were first-time grantees, receiving 26% of its grant dollars.

New vs renewed · share of each year

In FY2024, 74% of grant dollars renewed an existing relationship; $1.2M 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
Arts & CultureHuman ServicesHealthRecreation & SportsEnvironmentAnimalsOther
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 arriving21$3.4M29%
FY202429$4.7M52%
FY202323$2.4M35%
FY202224$2.4M42%
FY202115$2.8M27%
FY202021$2.7M19%
FY201919$1.0M37%
FY201818$1.8M33%
98% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Arts & Culture$6.4MEducation$4.5MPhilanthropy$4.3MRecreation & Sports$2.5MEnvironment$1.9MScience & Tech$1.5MHealth$1.4MHuman Services$1.2MOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
NY
IA
OH
RI
CA
CO
VA
FL

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 49 grantees
All grantees of Thomas & Linda Koehn Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Cornell College$1,965,00061%
Des Moines Metro Opera Foundation Inc$1,964,095923%
Greater Des Moines Botanical Garden$1,515,000821%
Science Center of Iowa$1,501,840211%
Naples Children Foundation Inc$1,458,02092%
Des Moines Water Works Park Foundation$1,200,000232%
Edmundson Art Foundation Inc$1,190,00038%
Des Moines Symphony Foundation$1,052,101438%
Youth and Shelter Services Inc$994,53013%
Dental Connections Inc$642,278216%
Des Moines Symphony Association$590,335810%
By Degrees Foundation$400,000147%
Variety - the Children's Charity of Iowa$320,00091%
Drake University$300,00050%
Iowa State University Foundation$250,00050%
Primary Health Care Inc$250,00020%
Iowa Public Radio Inc$250,00012%
Hoyt Sherman Place Foundation$210,00034%
United Way of Central Iowa$200,00020%
Naples Botanical Garden Inc$165,00031%
The Conservancy of Southwest Florida$127,50031%
Hope Ministries$100,00011%
Des Moines Community Playhouse$100,00013%
Des Moines Heritage Center$100,000113%
Historic Arnolds Park Inc$100,00011%
Ellipsis Inc$100,00012%
Broadlawns Medical Center Foundation$80,00045%
The Everglades Foundation Inc$77,50030%
Whitney Museum of American Art$70,00060%
Citizens for Community Betterment$30,0001n/a
Naples Zoo Inc$25,00040%
World Food Prize Foundation$25,00011%
Food Bank of Iowa$20,00010%
Orchard Place$20,00010%
Des Moines Performing Arts$20,00020%
Simpson College$17,00050%
On With Life Inc$10,00010%
Sonoma Valley Vintners & Growers Foundation$10,00010%
Ballet Des Moines$10,00010%
YMCA of the Rockies$10,00010%
Naples Historical Society Inc$8,00040%
Artis-Naples Inc$5,00010%
Mind and Spirit Counseling Center$5,00010%
Salisbury House Foundation$5,00020%
Feeding Dreams Inc$5,00010%
Healthnetwork Foundation Fka Health Net Foundation Inc$3,00030%
Okoboji Protective Association$1,00011%
Anawim Housing Foundation$1,00010%
Stratford Hall$25010%

What it could do for these grantees

Plus 28 recipients with no EIN on record ($4.7M), not named here.

Where it is load-bearing

Thomas & Linda Koehn Foundation supplied at least a quarter of the budget for 3 of its grantees at some point. The chart plots its 48 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCornell College: $1,965,000 over 6y, 1.0% of budgetDes Moines Metro Opera Foundation Inc: $1,964,095 over 9y, 23% of budgetGreater Des Moines Botanical Garden: $1,515,000 over 8y, 21% of budgetScience Center of Iowa: $1,501,840 over 2y, 11% of budgetNaples Children Foundation Inc: $1,458,020 over 9y, 2.1% of budgetDes Moines Water Works Park Foundation: $1,200,000 over 2y, 32% of budgetEdmundson Art Foundation Inc: $1,190,000 over 3y, 7.9% of budgetDes Moines Symphony Foundation: $1,052,101 over 4y, 38% of budgetYouth and Shelter Services Inc: $994,530 over 1y, 3.0% of budgetDental Connections Inc: $642,278 over 2y, 16% of budgetDes Moines Symphony Association: $590,335 over 8y, 9.8% of budgetBy Degrees Foundation: $400,000 over 1y, 47% of budgetVariety - the Children's Charity of Iowa: $320,000 over 9y, 1.0% of budgetDrake University: $300,000 over 5y, 0.0% of budgetIowa State University Foundation: $250,000 over 5y, 0.0% of budgetPrimary Health Care Inc: $250,000 over 2y, 0.2% of budgetIowa Public Radio Inc: $250,000 over 1y, 1.9% of budgetHoyt Sherman Place Foundation: $210,000 over 3y, 3.7% of budgetUnited Way of Central Iowa: $200,000 over 2y, 0.4% of budgetNaples Botanical Garden Inc: $165,000 over 3y, 0.9% of budgetThe Conservancy of Southwest Florida: $127,500 over 3y, 0.6% of budgetHope Ministries: $100,000 over 1y, 0.6% of budgetDes Moines Community Playhouse: $100,000 over 1y, 2.7% of budgetDes Moines Heritage Center: $100,000 over 1y, 13% of budgetHistoric Arnolds Park Inc: $100,000 over 1y, 0.6% of budgetEllipsis Inc: $100,000 over 1y, 1.6% of budgetBroadlawns Medical Center Foundation: $80,000 over 4y, 4.7% of budgetThe Everglades Foundation Inc: $77,500 over 3y, 0.2% of budgetWhitney Museum of American Art: $70,000 over 6y, 0.0% of budgetNaples Zoo Inc: $25,000 over 4y, 0.1% of budgetWorld Food Prize Foundation: $25,000 over 1y, 0.5% of budgetFood Bank of Iowa: $20,000 over 1y, 0.1% of budgetOrchard Place: $20,000 over 1y, 0.1% of budgetDes Moines Performing Arts: $20,000 over 2y, 0.1% of budgetSimpson College: $17,000 over 5y, 0.0% of budgetOn With Life Inc: $10,000 over 1y, 0.1% of budgetSonoma Valley Vintners & Growers Foundation: $10,000 over 1y, 0.3% of budgetBallet Des Moines: $10,000 over 1y, 0.4% of budgetYMCA of the Rockies: $10,000 over 1y, 0.0% of budgetNaples Historical Society Inc: $8,000 over 4y, 0.2% of budgetArtis-Naples Inc: $5,000 over 1y, 0.0% of budgetMind and Spirit Counseling Center: $5,000 over 1y, 0.1% of budgetSalisbury House Foundation: $5,000 over 2y, 0.3% of budgetFeeding Dreams Inc: $5,000 over 1y, 0.4% of budgetHealthnetwork Foundation Fka Health Net Foundation Inc: $3,000 over 3y, 0.0% of budgetOkoboji Protective Association: $1,000 over 1y, 1.1% of budgetAnawim Housing Foundation: $1,000 over 1y, 0.1% of budgetStratford Hall: $250 over 1y, 0.0% 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 48.

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.

Community Fdn of Greater Des Moines F/K/A Greater Des Moines Community FdnIA42.8× affinity21 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Fdn of Greater Des Moines F/K/A Greater Des Moines Community Fdn · Bookey Family Foundation · EMC Insurance Foundation · Meredith Corporation Foundation · Prairie Meadows Race Track and Casino Inc · John Ruan Foundation Trust · The West Bancorporation Foundation Inc · Gartner Family Foundation % Michael G Gartner · Wt and Edna M Dahl Trust · Kyle J & Sharon Krause Family Foundation · The Merchants Bonding Company Foundation · William C Knapp Charitable Fdn

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 Thomas & Linda Koehn Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Thomas & Linda Koehn Foundation?

Find your warmest path to Thomas & Linda Koehn 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.

About Thomas & Linda Koehn Foundation

How much does Thomas & Linda Koehn Foundation give?
Thomas & Linda Koehn Foundation reported 23 grants totaling $5,390,000 in its FY2025 IRS filing. It funded between 15 and 29 organizations a year over FY2018 to FY2024.
What does Thomas & Linda Koehn Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (26%), Education (18%), Philanthropy (18%).
Who are Thomas & Linda Koehn Foundation's largest grantees?
By total granted over FY2017 to FY2025: Cornell College ($2.0M), Des Moines Metro Opera Foundation Inc ($2.0M), Greater Des Moines Botanical Garden ($1.5M).
Does Thomas & Linda Koehn Foundation fund new organizations?
In FY2024, 52% of the organizations it funded were first-time grantees.
Does Thomas & Linda Koehn Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Thomas & Linda Koehn Foundation?
Its strongest co-funders, measured against what their size predicts, include Community Fdn of Greater Des Moines F/K/A Greater Des Moines Community Fdn, Bookey Family Foundation, EMC Insurance Foundation.
Where is Thomas & Linda Koehn Foundation based?
Thomas & Linda Koehn Foundation is based in IA.

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 Thomas & Linda Koehn’s filings →

More from the funding graph