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Oklahoma · Private foundation

Sam Viersen Family Foundation Inc

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1.9M
Granted FY2025(still arriving)
55
Grants FY2025
65
Organizations funded FY2024
35%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$712,000
Organizations funded a year
1 to 65
FY2018 to FY2024
States reached, FY2025
7
Total assets, FY2025
$34M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 35% of the organizations Sam Viersen Family Foundation Inc funded were first-time grantees, receiving 25% of its grant dollars.

New vs renewed · share of each year

In FY2024, 75% of grant dollars renewed an existing relationship; $369k 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
Human ServicesEducationArts & CultureHealthAnimalsCommunity ImprovementOther
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 arriving54$1.8M28%
FY202465$1.5M35%
FY202364$2.6M28%
FY202253$1.9M32%
FY202150$1.1M36%
FY202051$1.1M100%
FY20191$1.2M0%
FY20181$1.2M0%
97% classified

What it funded, over time

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

Philanthropy$5.0MEducation$3.3MHuman Services$2.3MAnimals$653kCommunity Improvement$304kCrime & Legal$260kHealth$200kArts & Culture$176kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MN
IL
NY
MA
NJ
CA
UT
CO
NE
VA
AZ
DC
OK
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 93 grantees
All grantees of Sam Viersen Family Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
The Young Men's Christian Association of Greater Tulsa$1,975,62054%
Okmulgee County Humane Society$1,286,413678%
Oklahoma State University Foundation$773,80060%
The Academies of Oklahoma Inc$406,65924%
University of Oklahoma Foundation Inc$316,32060%
Okmulgee Area Development Corp$308,000688%
Okmulgee County Family Resource Ctr$142,50046%
Tulsa Area United Way$127,00060%
Landmark for All Generations Inc$94,530462%
A New Leaf Inc$90,00050%
Okmulgee County Community Garden Corporation$87,0192n/a
Okmulgee Education Foundation$83,550557%
Okmulgee County Homeless Shelter Inc$80,00046%
Make-A-Wish Foundation of Oklahoma Inc$80,00061%
Okmulgee Public Schools$73,5003n/a
Domestic Violence Intervention Services$62,50050%
Community Food Bank of Eastern Oklahoma Inc$60,00030%
Oklahoma Project Woman Inc$60,00051%
Resonance Center for Women Inc$50,00051%
Oklahoma Dental Foundation$40,00020%
The Links Inc$39,70040%
Salvation Army$35,0002n/a
Tulsa Children's Museum Inc$34,50021%
Okmulgee Chamber of Commerce$31,50027%
Okmulgee Cemetery Association$30,500215%
Girl Scouts of Eastern Oklahoma Inc$26,00060%
Okmulgee Main St Inc$25,50064%
American National Red Cross & Its Constituent Chapters and Branches$25,00010%
Forever Young Foundation for Children$23,00030%
Creek Nation Indian Village Corp$22,50061%
Pets Helping People Inc$20,00021%
For the Good Inc$20,0005n/a
Lisa Bain Ministries Inc$19,00032%
Magic Foundation$15,00031%
American Legion Post 1$15,00052%
Buckhunger USA$15,0001n/a
Paralyzed Veterans of America Great Plains Chapter$14,50051%
Mentors International$14,00050%
Joy in the Cause Company$12,50012%
Special Olympics Oklahoma Inc$12,00060%
Rowan Fund$11,0002n/a
University of Central Oklahoma Foundation$11,00030%
The Humane Society of Tulsa$10,50021%
Little Light House Inc$10,00010%
Rape Abuse & Incest National Network (RAINN)$10,00010%
Children's Heart Foundation$10,00020%
Community Wireless of Park City$10,00011%
Deep Fork Community Action Foundation I$10,00010%
Pro Tech Athletes Coalition$10,000133%
Henryetta Education Foundation$10,0001n/a
Fab Lab Tulsa Inc$10,00023%
Happy Hands Education Center Inc$10,00050%
New Hope Oklahoma Inc$7,50012%
Indian Nations Council Boy Scouts of America$7,50020%
San Francisco Food Bank$7,00010%
Rescued N Ready Animal Foundation$7,00041%
Friends of Switchpoint Inc$7,00020%
Selected Independent Funeral Homes$6,00020%
Oklahoma Arts Institute Inc$5,50030%
Okmulgee Service League Inc$5,0005n/a
Heroes Hope Inc$5,00012%
Boys & Girls Clubs of San Francisco$5,00010%
Uc Law Sf Foundation$5,00010%
Oklahoma Alliance for Animals Inc$5,00030%
Alliance for International Medicine$5,0001n/a
Honor Bunker Inc$5,00030%
The Salt Lake Film Society$5,00010%
Woodie Guthrie Coalition Inc$5,00021%
San Francisco Women's Centers$5,00010%
The University of Tulsa$4,00020%
Wilson Public Schools$4,0003n/a
Brendon McLarty Memorial Foundation$4,00021%
University of Chicago$4,00020%
Mercy Sakes 2nd Chance Dogs$3,5002n/a
Oklahoma Westie Rescue Foundation$3,50011%
Herriman Rugby$3,00028%
The Center for Housing Solutions Inc$3,00010%
Hawkwatch International Inc$3,00010%
University of Utah$3,0001n/a
Tulsa SPCA$2,50010%
Riverfield Country Day School$2,00010%
Food for Kids$2,00011%
Henryetta Public Schools$2,0001n/a
St Jude Children's Research Hospital Inc$1,50020%
Jordan Education Foundation$1,50010%
Tulsa Debate League Incorporated$1,00010%
Feral and Domestic Animal Rescue Inc$1,0001n/a
Emergency Infant Services Inc$50010%
Ronald McDonald House Charities of Tulsa$50010%
Clean Air Task Force Inc$25010%
Strong Towns$25010%
Rainforest Trust$25010%
Center for Carbon Removal$25010%

What it could do for these grantees

Plus 50 recipients with no EIN on record ($6.5M), not named here.

Where it is load-bearing

Sam Viersen Family Foundation Inc supplied at least a quarter of the budget for 5 of its grantees at some point. The chart plots its 79 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Young Men's Christian Association of Greater Tulsa: $1,975,620 over 5y, 3.6% of budgetOkmulgee County Humane Society: $1,286,413 over 6y, 78% of budgetOklahoma State University Foundation: $773,800 over 6y, 0.1% of budgetThe Academies of Oklahoma Inc: $406,659 over 2y, 4.2% of budgetUniversity of Oklahoma Foundation Inc: $316,320 over 6y, 0.1% of budgetOkmulgee Area Development Corp: $308,000 over 6y, 88% of budgetOkmulgee County Family Resource Ctr: $142,500 over 4y, 6.2% of budgetTulsa Area United Way: $127,000 over 6y, 0.2% of budgetLandmark for All Generations Inc: $94,530 over 4y, 62% of budgetA New Leaf Inc: $90,000 over 5y, 0.2% of budgetOkmulgee Education Foundation: $83,550 over 5y, 57% of budgetOkmulgee County Homeless Shelter Inc: $80,000 over 4y, 5.7% of budgetMake-A-Wish Foundation of Oklahoma Inc: $80,000 over 6y, 0.6% of budgetDomestic Violence Intervention Services: $62,500 over 5y, 0.2% of budgetCommunity Food Bank of Eastern Oklahoma Inc: $60,000 over 3y, 0.1% of budgetOklahoma Project Woman Inc: $60,000 over 5y, 0.9% of budgetResonance Center for Women Inc: $50,000 over 5y, 0.5% of budgetOklahoma Dental Foundation: $40,000 over 2y, 0.4% of budgetThe Links Inc: $39,700 over 4y, 0.3% of budgetTulsa Children's Museum Inc: $34,500 over 2y, 0.5% of budgetOkmulgee Chamber of Commerce: $31,500 over 2y, 6.9% of budgetOkmulgee Cemetery Association: $30,500 over 2y, 15% of budgetGirl Scouts of Eastern Oklahoma Inc: $26,000 over 6y, 0.1% of budgetOkmulgee Main St Inc: $25,500 over 6y, 4.3% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $25,000 over 1y, 0.0% of budgetForever Young Foundation for Children: $23,000 over 3y, 0.2% of budgetCreek Nation Indian Village Corp: $22,500 over 6y, 0.7% of budgetPets Helping People Inc: $20,000 over 2y, 0.7% of budgetLisa Bain Ministries Inc: $19,000 over 3y, 1.9% of budgetMagic Foundation: $15,000 over 3y, 0.5% of budgetAmerican Legion Post 1: $15,000 over 5y, 2.2% of budgetParalyzed Veterans of America Great Plains Chapter: $14,500 over 5y, 1.5% of budgetMentors International: $14,000 over 5y, 0.1% of budgetJoy in the Cause Company: $12,500 over 1y, 1.8% of budgetSpecial Olympics Oklahoma Inc: $12,000 over 6y, 0.1% of budgetUniversity of Central Oklahoma Foundation: $11,000 over 3y, 0.1% of budgetThe Humane Society of Tulsa: $10,500 over 2y, 1.3% of budgetLittle Light House Inc: $10,000 over 1y, 0.3% of budgetRape Abuse & Incest National Network (RAINN): $10,000 over 1y, 0.0% of budgetChildren's Heart Foundation: $10,000 over 2y, 0.1% of budgetCommunity Wireless of Park City: $10,000 over 1y, 0.5% of budgetDeep Fork Community Action Foundation I: $10,000 over 1y, 0.3% of budgetPro Tech Athletes Coalition: $10,000 over 1y, 33% of budgetFab Lab Tulsa Inc: $10,000 over 2y, 2.6% of budgetHappy Hands Education Center Inc: $10,000 over 5y, 0.2% of budgetNew Hope Oklahoma Inc: $7,500 over 1y, 1.6% of budgetIndian Nations Council Boy Scouts of America: $7,500 over 2y, 0.3% of budgetSan Francisco Food Bank: $7,000 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 79.

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.

The Anne and Henry Zarrow FoundationOK44.7× affinity20 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Anne and Henry Zarrow Foundation · The Hardesty Family Foundation Inc · Tulsa Community Foundation · The Gelvin Foundation · Ralph and Frances McGill Foundation the Trust Company of Oklahoma · One Gas Foundation Inc · Grace & Franklin Bernsen Foundation · Mervin Bovaird Foundation · The Sharna and Irvin Frank Foundation · Kirkpatrick Foundation Inc · George Kaiser Family Foundation · The HA & Mary K Chapman 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.

Compare Sam Viersen Family Foundation Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Sam Viersen Family Foundation Inc?

Find your warmest path to Sam Viersen Family 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.

About Sam Viersen Family Foundation Inc

How much does Sam Viersen Family Foundation Inc give?
Sam Viersen Family Foundation Inc reported 55 grants totaling $1,906,619 in its FY2025 IRS filing. It funded between 1 and 65 organizations a year over FY2018 to FY2024.
What does Sam Viersen Family Foundation Inc fund?
By grant dollars over FY2017 to FY2025, its largest causes are Philanthropy (39%), Education (26%), Human Services (18%).
Who are Sam Viersen Family Foundation Inc's largest grantees?
By total granted over FY2017 to FY2025: The Young Men's Christian Association of Greater Tulsa ($2.0M), Okmulgee County Humane Society ($1.3M), Oklahoma State University Foundation ($774k).
Does Sam Viersen Family Foundation Inc fund new organizations?
In FY2024, 35% of the organizations it funded were first-time grantees.
Does Sam Viersen Family Foundation Inc accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Sam Viersen Family Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include The Anne and Henry Zarrow Foundation, The Hardesty Family Foundation Inc, Tulsa Community Foundation.
Where is Sam Viersen Family Foundation Inc based?
Sam Viersen Family Foundation Inc is based in OK.

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 145 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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