· 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
Anchored by a single position — about 100% of reported assets are held in Berkshire Hathaway Class A.
| Recipient | Amount |
|---|---|
| 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 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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 your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 12% of Avenir Foundation Inc’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another. Read by recipient address, 45% of the giving stays in CO; read by stated purpose it is 36% — less of the work is directed home than the recipients' locations suggest.
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 foundation’s own 990 grant descriptions.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +30% since the first grant, against 0% for the ones you 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
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 52% of grant dollars renewed an existing relationship; $10M went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- DADENVER ART MUSEUM4× · 2018–2021 · $10M · revenue +18%
- TSTHE SANTA FE OPERA5× · 2017–2025 · $5.8M · revenue +53%
- AIAMERICAN INSTITUTE OF PHYSICS INC4× · 2018–2025 · $5.3M · revenue +21%
Funded once
RUTGERS UNIVERSITY FOUNDATIONone grant, 2018 · $10M · revenue -14%- TNTHE NATIONAL MINING HALL OF FAME AND MUSEUMone grant, 2024 · $1.5M · revenue 0% · 58% of their budget
- BNBERKS NATUREgraduatedone grant, 2020 · $55k · revenue +85%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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…
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.
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…
Be a catalyst! Ignite our community's passion for nature and science.
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…
To continually redefine the way our community experiences and engages with classical music
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…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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…
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.
For reference, the grantee most central to the portfolio’s shape is The Denver Foundation and 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.
18 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds UNIVERSITY OF OKLAHOMA FOUNDATION INC ↗
- Who funds RUTGERS UNIVERSITY FOUNDATION ↗
- Who funds DENVER ART MUSEUM ↗
- 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 COBALT FOUNDATION ↗
- Who funds REPRODUCTIVE FREEDOM FOR ALL FOUNDATION ↗
- Who funds COLORADO BALLET ↗
- Who funds BERKS NATURE ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Avenir Foundation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- American Institute of Physics Inc — 0% of income from government
- Rutgers University Foundation — 0% of income from government
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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.