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· Private foundation

The Karlson Family Foundation

Its FY2023 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$2.0M
Granted FY2023
13
Grants FY2023
8
States reached
$483k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2023.

Community Improvement$1.8MEducation$202kEnvironment$171kHuman Services$149kHealth$75kMembership Benefit$53kReligion$49kArts & Culture$32kOther$0
02FY2023 · 13 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2023

  • Under $10k3 grants · $9k
  • $10k–50k2 grants · $54k
  • $50k–250k6 grants · $966k
  • $250k+2 grants · $966k
$120,739
Median grant
8
States reached
$0
Total assets
Largest grants
RecipientAmount
JON H REHNBERG CHARITABLE GIFT FUND$482,943
H CHRISTOPHER & JENNIE MAY REHNBERG CHARITABLE FUND$482,943
STEPHANIE'S GIFT FUND$241,616
MCCANN AGEE CHARITABLE GIFT FUND$161,123
ANNA J MCCANN CONSERVATION FUND$161,123
DAGAN MCCANN CHARITABLE GIFT FUND$161,123
STEPHANIE REHNBERG FUND$120,739
GREGORY JOHN MOTYCKA FUND$120,739
UPPER MERRYALL CEMETERY ASSOCIATION$35,000
DOUGLAS MURRAY CHARITABLE GIFT FUND$18,800
LYNDE POINT LAND TRUST$5,000
THE CHRISTIAN RELIEF FUND$2,000
FENWICK IMPROVEMENT FUND$1,500
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 (FY17–22, $71k) land where the poverty rate runs at 10%, against an area that typically sits at 8%. 82% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%WOUNDED WARRIORS FAMILY SUPPORT: $8k → 12%STAND UP AND PLAY FOUNDATION: $10k → 11%WILD INSTINCTS: $3k → 12%JACKSON HOLE THERAPEUTIC RIDING: $4k → 5%STAND UP AND PLAY FOUNDATION: $5k → 11%WILD INSTINCTS: $2k → 12%JACKSON HOLE THERAPEUTIC RIDING: $3k → 5%STAND UP AND PLAY FOUNDATION: $4k → 11%WILD INSTINCTS: $2k → 12%JACKSON HOLE THERAPEUTIC RIDING: $2k → 5%STAND UP AND PLAY FOUNDATION: $4k → 11%WILD INSTINCTS: $2k → 12%JACKSON HOLE THERAPEUTIC RIDING: $2k → 5%STAND UP AND PLAY FOUNDATION: $3k → 11%JACKSON HOLE THERAPEUTIC RIDING: $2k → 5%Pawcatuck Neighborhood Center: $8k → 9%Women's Support Services Inc: $3k → 9%Loaves and Fishes Hospitality House Inc: $2k → 9%Loaves and Fishes Hospitality House Inc: $1k → 9%Loaves and Fishes Hospitality House Inc: $1k → 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

VT
MT
MN
WI
MI
NY
MA
WY
PA
NJ
CT
RI
CA
UT
CO
NE
VA
MD
TN
NC
AL
GA
TX
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.

23%of every dollar goes to organizations it has funded before.
$602k · 49 repeat orgs$2.1M to everyone else

49 repeat relationships: 1 still active in FY2023, 48 since wound down; 12 grantees were first funded in FY2023 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

49
35

Total granted

$602k
$104k

Median revenue growth · since first grant

+30%
+34%

Still filing today

53%
40%

New vs renewed · share of each year

In FY2023, 2% of grant dollars renewed an existing relationship; $2.0M went to new ones.

50%100%’17’18’19’20’21’22’23
RenewedFirst-time

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

’17’18’19’20’21’22’23
HealthHuman ServicesEducationArts & CultureAnimalsInternationalOther
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

  • UO
    UNIVERSITY OF MINNESOTA FOUNDATION
    6× · 2017–2022 · $86k · revenue +105%
  • WQ
    WARRIORS & QUIET WATERS FOUNDATION INC
    6× · 2017–2022 · $60k · revenue +219%
  • SF
    Soul Friends Inc
    4× · 2019–2022 · $14k · revenue +198%

Funded once

  • WW
    WOUNDED WARRIORS FAMILY SUPPORT INCgraduated
    3× · 2017–2019 · $8k · revenue +59%
  • PN
    PAWCATUCK NEIGHBORHOOD CENTER INCgraduated
    3× · 2020–2022 · $8k · revenue +55%
  • TH
    The Human Resources Dev Council of District IX
    3× · 2020–2022 · $8k
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
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
2
Connecticut Humane Society

The connecticut humane society is the leading resource in the state for companion animal welfare, enriching the lives of families and communities through adoption services, medical care, education, and prevention of cruelty.

Animals
3
Connecticut Aeronautical Historical Association Inc

The new england air museum's mission is to preserve and present the story of aviation and aerospace, with an emphasis on new england's role, and the genius and inspiration that made it possible. the museum also seeks to inspire young…

Arts & Culture
4
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.

—
5
Nantucket Conservation Foundation Inc

The nantucket conservation foundation owns, protects, and stewards over 9,000 acres of land and coastal shoreline, conserves nantucket's rare and significant natural resources, and engages in impactful ecological research to inform…

Environment
6
Kent Land Trust Inc

To promote, for the benefit of the general public, the conservation of land and water natural resources principally in, but not limited to, the town of kent, connecticut.

Environment
7
University of Hartford

Dedicated to learning, personal growth, knowledge creation, and the betterment of society. the university engages students in aquiring the knowledge, skills, and values necessary to thrive in and contribute to a pluralistic, complex world.

Education
8
The Trustees of Reservations

Overview - founded in boston by pioneering landscape architect and open space visionary charles eliot in 1891, the trustees is the nation's first and the commonwealth's largest conservation and preservation nonprofit.

Environment
9
The Water Research Foundation

The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…

Environment
10
Norwalk Seaport Association Inc

The norwalk seaport association, inc. offers a cultural, environmental, and historical journey to the norwalk islands. the sheffield island lighthouse and the light keeper's cottage provide a unique historical and educational venue which…

Arts & Culture
11
The Maritime Aquarium At Norwalk Inc

The maritime aquarium at norwalk seeks to ignite a connection to long island sound and the ocean to enrich the lives of all people and inspire action to protect our blue planet.

Arts & Culture
12
Hartford Foundation for Public Giving

The hartford foundation for public giving puts philanthropy into action to create lasting solutions that result in vibrant communities within the greater hartford region. as the region's community foundation, it is a public, grantmaking…

Philanthropy
How this is measured
The grantee most central to the portfolio’s shape is Kent Volunteer Fire Department Inc; the most unlike its peers is B-Bold. 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

48 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. 48 of the 98 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)
15
Early backer (in before they grew)
47/48
Grantees still filing
34/48
Grew since first funded

Where the money sits, by cause and then by grantee

H CHRISTOPHER & JENNIE MAY REHNBERG CHARITABLE FUND: $482,943 · OtherH CHRISTOPHER & JENNIE MAY REHNBERG CHARITABLE FUNDJON H REHNBERG CHARITABLE GIFT FUND: $482,943 · OtherJON H REHNBERG CHARITABLE GIFT FUNDSTEPHANIE'S GIFT FUND: $241,616 · OtherSTEPHANIE'S GIFT FUNDMCCANN AGEE CHARITABLE GIFT FUND: $161,123 · OtherMCCANN AGEE CHARITABLE GIFT FUNDDAGAN MCCANN CHARITABLE GIFT FUND: $161,123 · OtherDAGAN MCCANN CHARITABLE GIFT FUNDANNA J MCCANN CONSERVATION FUND: $161,123 · OtherANNA J MCCANN CONSERVATION FUNDGREGORY JOHN MOTYCKA FUND: $120,739 · OtherSTEPHANIE REHNBERG FUND: $120,739 · Other+63 more: $380,600 · Other+63 moreUNIVERSITY OF MINNESOTA FOUNDATION: $85,500 · EducationTHE UC DAVIS FOUNDATION: $10,000 · EducationESSEX LIBRARY ASSOCIATION INC: $6,000 · Education+3 more: $4,500 · EducationWARRIORS & QUIET WATERS FOUNDATION INC: $60,000 · HealthSoul Friends Inc: $13,500 · HealthST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $8,000 · HealthAmerican Diabetes Association: $7,000 · HealthCUMBERLAND HEIGHTS FOUNDATION INC: $5,000 · HealthMIDDLESEX HOSPITAL FOUNDATION INC: $4,000 · Health+1 more: $2,000 · HealthSTAND UP AND PLAY FOUNDATION INC: $26,000 · Human ServicesJACKSON HOLE THERAPEUTIC RIDING: $13,000 · Human ServicesWILD INSTINCTS INC: $9,000 · Human ServicesWOUNDED WARRIORS FAMILY SUPPORT INC: $8,000 · Human ServicesPAWCATUCK NEIGHBORHOOD CENTER INC: $7,500 · Human ServicesLOAVES & FISHES HOSPITALITY HOUSE INC: $4,000 · Human ServicesPROJECT SAGE INC: $3,000 · Human ServicesUPPER MERRYALL CEMETERY ASSOCIATION INC: $53,000 · Membership BenefitTHE CONNECTICUT RIVER FOUNDATION AT STEAMBOAT DOCK INC: $8,000 · Arts & CultureOUR RESCUE: $6,000 · Arts & CultureRenaissance City Theatre Inc DBA The Granite Theatre: $2,500 · Arts & CultureTRI-STATE CENTER FOR THE ARTS INC: $1,000 · Arts & CultureNORTHVILLE VOLUNTEER FIRE DEPARTMENT: $6,500 · Public Safety & DisasterKENT VOLUNTEER FIRE DEPARTMENT INC: $6,000 · Public Safety & Disaster
Other$2,312,949Education$106,000Health$99,500Human Services$70,500Membership Benefit$53,000Arts & Culture$17,500Public Safety & Disaster$12,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$10k$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetUNIVERSITY OF MINNESOTA FOUNDATION: $85,500 over 6y, 0.0% of budgetWARRIORS & QUIET WATERS FOUNDATION INC: $60,000 over 6y, 0.8% of budgetUPPER MERRYALL CEMETERY ASSOCIATION INC: $53,000 over 7y, 3.4% of budgetSTAND UP AND PLAY FOUNDATION INC: $26,000 over 6y, 4.2% of budgetSoul Friends Inc: $13,500 over 4y, 4.7% of budgetJACKSON HOLE THERAPEUTIC RIDING: $13,000 over 5y, 0.6% of budgetTHE UC DAVIS FOUNDATION: $10,000 over 2y, 0.0% of budgetWILD INSTINCTS INC: $9,000 over 4y, 1.1% of budgetNO BARRIERS USA: $8,500 over 4y, 0.1% of budgetWOUNDED WARRIORS FAMILY SUPPORT INC: $8,000 over 3y, 0.2% of budgetTHE CONNECTICUT RIVER FOUNDATION AT STEAMBOAT DOCK INC: $8,000 over 4y, 0.3% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $8,000 over 3y, 0.0% of budgetPAWCATUCK NEIGHBORHOOD CENTER INC: $7,500 over 3y, 0.5% of budgetAmerican Diabetes Association: $7,000 over 3y, 0.0% of budgetBUILDING HOMES FOR HEROES INC: $7,000 over 3y, 0.0% of budgetNORTHVILLE VOLUNTEER FIRE DEPARTMENT: $6,500 over 6y, 0.6% of budgetOUR RESCUE: $6,000 over 3y, 0.0% of budgetKENT VOLUNTEER FIRE DEPARTMENT INC: $6,000 over 6y, 0.3% of budgetESSEX LIBRARY ASSOCIATION INC: $6,000 over 4y, 0.3% of budgetWILDLIFE IN CRISIS INC: $6,000 over 6y, 0.3% of budgetTHE CORAL RESTORATION FOUNDATION INC: $5,000 over 3y, 0.0% of budgetCUMBERLAND HEIGHTS FOUNDATION INC: $5,000 over 4y, 0.0% of budgetLYNDE POINT LAND TRUST INC: $5,000 over 1y, 17% of budgetNational Law Enforcement and Firefighters Childrens Foundation: $5,000 over 3y, 0.0% of budgetHORSE ANGELS RESCUE: $4,000 over 2y, 1.1% of budgetLOAVES & FISHES HOSPITALITY HOUSE INC: $4,000 over 3y, 1.8% of budgetCOV INC: $4,000 over 1y, 0.4% of budgetB-Bold: $3,000 over 4y, 36% of budgetPROJECT SAGE INC: $3,000 over 3y, 0.3% of budgetNEW MILFORD HISTORICAL SOCIETY INC: $3,000 over 6y, 0.8% of budgetRenaissance City Theatre Inc DBA The Granite Theatre: $2,500 over 6y, 0.9% of budgetNASHVILLE FOOD PROJECT INC: $2,500 over 4y, 0.1% of budgetKENT HISTORICAL SOCIETY INC: $2,000 over 6y, 1.0% of budgetHILLSDALE COLLEGE: $2,000 over 2y, 0.0% of budgetEC SCRANTON MEMORIAL LIBRARY: $2,000 over 4y, 0.1% of budgetDEMENTIA SOCIETY INC: $2,000 over 2y, 0.1% of budgetTHE CHRISTIAN RELIEF FUND: $2,000 over 1y, 0.0% of budgetJOHNS HOPKINS UNIVERSITY: $2,000 over 2y, 0.0% of budgetUNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC: $1,500 over 3y, 0.0% of budgetVETERANS OF FOREIGN WARS POST #1672: $1,500 over 3y, 0.9% of budgetFENWICK IMPROVEMENT FUND INC: $1,500 over 1y, 1.3% of budgetTRI-STATE CENTER FOR THE ARTS INC: $1,000 over 4y, 0.1% of budgetPets for Vets Inc: $1,000 over 3y, 0.1% of budgetTHE WILLIAM J GOULD ASSOCIATES INC: $1,000 over 3y, 0.0% of budgetLITERACY VOLUNTEERS ON THE GREEN: $500 over 2y, 0.4% of budgetANIMAL WELFARE SOCIETY INC: $500 over 3y, 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 UNIVERSITY OF MINNESOTA FOUNDATION ↗
  • Who funds WARRIORS & QUIET WATERS FOUNDATION INC ↗
  • Who funds UPPER MERRYALL CEMETERY ASSOCIATION INC ↗
  • Who funds STAND UP AND PLAY FOUNDATION INC ↗
  • Who funds Soul Friends Inc ↗
  • Who funds JACKSON HOLE THERAPEUTIC RIDING ↗
  • Who funds THE UC DAVIS FOUNDATION ↗
  • Who funds WILD INSTINCTS INC ↗
  • Who funds NO BARRIERS USA ↗
  • Who funds WOUNDED WARRIORS FAMILY SUPPORT INC ↗
  • Who funds THE CONNECTICUT RIVER FOUNDATION AT STEAMBOAT DOCK INC ↗
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
  • Who funds PAWCATUCK NEIGHBORHOOD CENTER INC ↗
  • Who funds American Diabetes Association ↗
  • Who funds BUILDING HOMES FOR HEROES INC ↗
  • Who funds NORTHVILLE VOLUNTEER FIRE DEPARTMENT ↗
  • Who funds OUR RESCUE ↗
  • Who funds KENT VOLUNTEER FIRE DEPARTMENT INC ↗
  • Who funds ESSEX LIBRARY ASSOCIATION INC ↗
  • Who funds WILDLIFE IN CRISIS 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.

The Connecticut Community FoundationCT17.3× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Connecticut Community Foundation · Babbitt Family Charitable Trust · The Kestrel Foundation · The Ellen Knowles Harcourt Foundation · Union Savings Bank Foundation Inc · Connecticut Humanities Council Inc · The Pfizer Foundation Inc · Ibm International Foundation · The Ayco Charitable Foundation · The Chicago Community Trust · National Philanthropic Trust · Shell USA Company 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 The Karlson Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Karlson Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 130%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 12%
  • The Coral Restoration Foundation Inc: 16% of income from government
  • Johns Hopkins University: 12% of income from government
  • United Way of Coastal and Western Connecticut Inc: 11% of income from government
  • Tri-State Center for the Arts Inc: 1% of income from government
no gov moneyreceives it· size = income
13get no government money at all
11report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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 The Karlson Family Foundation?

Find your warmest path to The Karlson Family 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 98 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 2023, released 2023. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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