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· Private foundation

Avenir Foundation Inc

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.

$21M
Granted FY2025still arriving
6
Grants FY2025still arriving
4
States reached
$10M
Largest
01What it funds
0196% 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$48MEducation$40MHuman Services$9.3MHealth$6.6MScience & Tech$5.3MAnimals$2.2MPhilanthropy$2.2MCivil Rights$1.4MOther$0
02FY2025 · 6 grants

Where the money goes

Grants by size, and the largest recipients.

$1,000,000
Median grant
4
States reached
$1.4B
Total assets

Anchored by a single position: about 100% of reported assets are held in Berkshire Hathaway Class A.

Largest grants
RecipientAmount
St Martin's Chamber Choir$10,000,000
Kulakamala Foundation$8,000,000
Santa Fe Opera$1,000,000
Colorado Symphony Fund$1,000,000
Central City Opera$500,000
American Institute of Physics$250,000
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:

Its human-services grants (FY17–25, $9.3M) land where the poverty rate runs at 11%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%Kulakamala Foundation: $8.0M → 11%Kula Kamala Foundation: $974k → 11%Kulakamala Foundation: $100k → 11%Kula Kamala Foundation: $100k → 11%Kula Kamala Foundation: $100k → 11%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

MI
NY
MA
PA
NJ
CO
MD
AZ
NM
DC
OK
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 12% of Avenir Foundation Inc’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 45% of the giving stays in CO; by stated purpose, 36%.

Avenir Foundation Inclessmore of its giving
Placed by recipient address · 21% directed abroad (not shown)
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

82%of every dollar goes to organizations it has funded before.
$100M · 22 repeat orgs$22M to everyone else

Grantees it renews have grown median revenue +30% since the first grant, against 0% for those funded once.

22 repeat relationships: 5 still active in FY2025, 17 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

22
3

Total granted

$100M
$12M

Median revenue growth · since first grant

+30%
0%

Still filing today

59%
100%

New vs renewed · share of each year

In FY2025, 52% of grant dollars renewed an existing relationship; $10M went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureEducationScience & TechHuman ServicesHealthAnimalsOther
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

  • DA
    DENVER ART MUSEUM
    4× · 2018–2021 · $10M · revenue +18%
  • TS
    THE SANTA FE OPERA
    5× · 2017–2025 · $5.8M · revenue +84%
  • AI
    AMERICAN INSTITUTE OF PHYSICS INC
    4× · 2018–2025 · $5.3M · revenue +21%

Funded once

  • RUTGERS UNIVERSITY FOUNDATION
    one grant, 2018 · $10M · revenue -14%
  • TN
    THE NATIONAL MINING HALL OF FAME AND MUSEUM
    one grant, 2024 · $1.5M · revenue 0% · 58% of their budget
  • BN
    BERKS NATUREgraduated
    one grant, 2020 · $55k · revenue +48%
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
Npr Foundation

The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…

—
2
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
3
San Diego Opera Association

Mission: the mission of san diego opera is to deliver exceptional performances and exciting, accessible programs to diverse audiences, focusing on community partnerships, and the transformative and expressive power of the human voice. as…

Arts & Culture
4
Denver Botanic Gardens Inc

The mission of denver botanic gardens is to connect people with plants, especially plants from the rocky mountain region and similar regions around the world, providing delight and enlightenment to everyone.

Environment
5
Colorado Symphony Association

The colorado symphony association (csa) is a not-for-profit organization established to fund and operate the colorado symphony orchestra for the enjoyment and benefit of the citizens of metropolitan denver and (cont'd on schedule…

Arts & Culture
6
Colorado Museum of Natural History

Be a catalyst! Ignite our community's passion for nature and science.

Arts & Culture
7
National Public Radio Inc

National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…

Arts & Culture
8
Denver Philharmonic Orchestra

To continually redefine the way our community experiences and engages with classical music

—
9
Los Angeles Opera Company

To serve the public by producing world-class opera that preserves, promotes and advances the art form while embodying the diversity, spirit and artistic sensibility unique to los angeles. we envision an engaged and enlightened community in…

Arts & Culture
10
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
11
Federation of State Medical Boards of the United States Inc

The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…

Health
12
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.

—
How this is measured
The grantee most central to the portfolio’s shape is The Denver Foundation; the most unlike its peers is The Spayed Club. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

18 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 18 of the 27 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.

5
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
18/18
Grantees still filing
11/18
Grew since first funded

Where the money sits, by cause and then by grantee

University of Michigan Clements Library: $10,000,000 · OtherUniversity of Michigan Clements LibraryCentral City Opera: $8,499,999 · OtherCentral City OperaIndividual grant recipient: $7,146,617 · OtherIndividual grant recipientColorado State University: $5,062,658 · OtherColorado State UniversityArnold Schoenberg Institute: $3,500,000 · OtherArnold Schoenberg InstituteArs Nova Singers Inc: $2,440,000 · OtherArs Nova Singers IncPlanned Parenthood Federation of the Rocky Mountains: $1,600,000 · OtherTHE SPAYED CLUB: $1,758,877 · Other+6 more: $3,347,546 · Other+6 moreDENVER ART MUSEUM: $10,000,000 · Arts & CultureDENVER ART MUSEUMST MARTINS CHAMBER CHOIR: $10,000,000 · Arts & CultureST MARTINS CHAMBER CHOIRTHE SANTA FE OPERA: $5,750,000 · Arts & CultureTHE SANTA FE OPERACOLORADO SYMPHONY FUND: $4,542,719 · Arts & CultureCOLORADO SYMPHONY FUNDTHE NATIONAL MINING HALL OF FAME AND MUSEUM: $1,500,000 · Arts & Culture+2 more: $1,300,000 · Arts & CultureUNIVERSITY OF OKLAHOMA FOUNDATION INC: $17,200,000 · EducationUNIVERSITY OF OKLAHOMA F…RUTGERS UNIVERSITY FOUNDATION: $10,000,000 · EducationRUTGERS UNIVERSITY FOUND…KULA KAMALA FOUNDATION: $9,274,000 · Human ServicesAMERICAN INSTITUTE OF PHYSICS INC: $5,250,000 · Science & TechPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $3,200,000 · HealthTHE DENVER FOUNDATION: $2,200,000 · Philanthropy
Other$43,355,697Arts & Culture$33,092,719Education$27,200,000Human Services$9,274,000Science & Tech$5,250,000Health$3,200,000Philanthropy$2,200,000

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetUNIVERSITY OF OKLAHOMA FOUNDATION INC: $17,200,000 over 3y, 5.9% of budgetDENVER ART MUSEUM: $10,000,000 over 4y, 5.9% of budgetRUTGERS UNIVERSITY FOUNDATION: $10,000,000 over 1y, 6.2% of budgetST MARTINS CHAMBER CHOIR: $10,000,000 over 1y, 97% of budgetKULA KAMALA FOUNDATION: $9,274,000 over 5y, 93% of budgetTHE SANTA FE OPERA: $5,750,000 over 5y, 6.9% of budgetAMERICAN INSTITUTE OF PHYSICS INC: $5,250,000 over 4y, 2.6% of budgetCOLORADO SYMPHONY FUND: $4,542,719 over 5y, 49% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $3,200,000 over 5y, 0.4% of budgetTHE DENVER FOUNDATION: $2,200,000 over 3y, 0.5% of budgetTHE SPAYED CLUB: $1,758,877 over 3y, 72% of budgetTHE NATIONAL MINING HALL OF FAME AND MUSEUM: $1,500,000 over 1y, 58% of budgetOPERA COLORADO: $1,100,000 over 5y, 7.7% of budgetPATHFINDER INTERNATIONAL: $900,000 over 5y, 0.2% of budgetREPRODUCTIVE FREEDOM FOR ALL FOUNDATION: $700,000 over 4y, 2.2% of budgetCOBALT FOUNDATION: $700,000 over 4y, 18% of budgetCOLORADO BALLET: $200,000 over 5y, 1.1% of budgetBERKS NATURE: $55,170 over 1y, 1.6% 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 OKLAHOMA FOUNDATION INC ↗
  • Who funds DENVER ART MUSEUM ↗
  • Who funds RUTGERS UNIVERSITY FOUNDATION ↗
  • Who funds ST MARTINS CHAMBER CHOIR ↗
  • Who funds KULA KAMALA FOUNDATION ↗
  • Who funds THE SANTA FE OPERA ↗
  • Who funds AMERICAN INSTITUTE OF PHYSICS INC ↗
  • Who funds COLORADO SYMPHONY FUND ↗
  • Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
  • Who funds THE DENVER FOUNDATION ↗
  • Who funds THE SPAYED CLUB ↗
  • Who funds THE NATIONAL MINING HALL OF FAME AND MUSEUM ↗
  • Who funds OPERA COLORADO ↗
  • Who funds PATHFINDER INTERNATIONAL ↗
  • Who funds REPRODUCTIVE FREEDOM FOR ALL FOUNDATION ↗
  • Who funds COBALT FOUNDATION ↗
  • Who funds COLORADO BALLET ↗
  • Who funds BERKS NATURE ↗

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.

Colorado Gives FoundationCO14.8× affinity5 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: Colorado Gives Foundation · Merle Chambers Fund · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Avenir Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Avenir Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%6%25%56%100%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 0%
  • American Institute of Physics Inc: 0% of income from government
  • Rutgers University Foundation: 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–75%
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 Avenir Foundation Inc?

Find your warmest path to Avenir 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.

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 27 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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