· Private foundation
Louis Foundation Inc
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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2023.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2023
- $10k–50k1 grant · $20k
- $250k+1 grant · $1.0M
| Recipient | Amount |
|---|---|
| Valleywise health foundation | $1,012,000 |
| Barrow Neurological Foundation | $20,000 |
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 (FY17–22, $140k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 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.
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.
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 +45% since the first grant, against +44% for the ones you funded once.
35 repeat relationships — 1 still active in FY2023, 34 since wound down; 1 grantees were first funded in FY2023 (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 FY2023, 98% of grant dollars renewed an existing relationship; $20k 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
- VHVALLEYWISE HEALTH FOUNDATION3× · 2020–2023 · $1.0M · revenue +59%
- TOTRUSTEES OF DEERFIELD ACADEMY6× · 2017–2022 · $120k · revenue +122%
- PCPHOENIX COUNTRY DAY SCHOOL6× · 2017–2022 · $105k · revenue +31%
Funded once
- AWARIZONA WOMEN'S BOARDone grant, 2018 · $10k · revenue -4%
- UFUnited Food Bankgraduatedone grant, 2020 · $10k · revenue +33%
- SAST ANDREW'S SCHOOLone grant, 2020 · $10k
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.
Azaap is committed to improving the health of arizona children and supporting the pediatric professionals who care for them.
Bringing together diverse voices to advance health and healthcare in arizona.
To lead, serve and collaborate to mobilize enduring philanthropy for a better arizona.
To assist member firms in achieving higher professional, ethical business and economic standards, enabling member firms to provide quality consulting and engineering services for their clients and the public.
Assist banner health complete its mission to make health care easier so life can be better by providing integrated & coordinated care & population health management.
The university of arizona foundation is committed to supporting and enhancing the vision, mission and values of the university of arizona through the development and management of private support.
The Academy's mission is to enhance member career fulfillment and promote brain health for all.
Greater phoenix chamber of commerce (the chamber) catalyzes regional prosperity with forward-thinking public policy, intentional economic growth, and diverse, prepared talent.
To provide immediate financial assistance to families of public safety officers and firefighters who are seriously injured or killed in the line of duty, and to provide resources to enhance their safety and welfare.
To advance the knowledge and abilities of organization members in the field of architecture through seminars, networking, and member services.
Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…
To make sexual and reproductive healthcare accessible to everyone
For reference, the grantee most central to the portfolio’s shape is Hospice of the Valley and the most unlike its peers is Lake Owen Association Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 48 years old; the field is 11. You back the established end — and your money leans older still.
The field is 29% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 17% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
31 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. 31 of the 44 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 VALLEYWISE HEALTH FOUNDATION ↗
- Who funds TRUSTEES OF DEERFIELD ACADEMY ↗
- Who funds VALLEY OF THE SUN UNITED WAY ↗
- Who funds PHOENIX COUNTRY DAY SCHOOL ↗
- Who funds Hospice of the Valley ↗
- Who funds Phoenix Children's Hospital ↗
- Who funds Williams College ↗
- Who funds CABLE NATURAL HISTORY MUSEUM INC ↗
- Who funds Orthopaedic Research and Education Foundation ↗
- Who funds DESERT BOTANICAL GARDEN INC ↗
- Who funds PLANNED PARENTHOOD ARIZONA INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds ARIZONA SCIENCE CENTER ↗
- Who funds Arizona Humane Society ↗
- Who funds HABITAT FOR HUMANITY CENTRAL ARIZONA ↗
- Who funds JUNIOR ACHIEVEMENT OF ARIZONA ↗
- Who funds HEALTH VOLUNTEERS OVERSEAS INC ↗
- Who funds SANDRA DAY O'CONNOR INSTITUTE FOR AMERICAN DEMOCRACY ↗
- Who funds LAKE OWEN ASSOCIATION INC ↗
- Who funds BARROW NEUROLOGICAL FOUNDATION ↗
- Who funds ARIZONA GOLF AND LIFE SKILLS INC DBA FIRST TEE - PHOENIX ↗
- Who funds National Kidney Foundation of Arizona ↗
- Who funds ST MARY'S FOOD BANK ALLIANCE ↗
- Who funds ARIZONA WOMEN'S BOARD ↗
- Who funds United Food Bank ↗
- Who funds ARIZONA RESTAURANT AND HOSPITALITY ASSOCIATION ↗
- Who funds NEW WAY ACADEMY ↗
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: Michael W Louis Private Foundation · Arizona Community Foundation · Tw Lewis Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · 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 Louis 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.
- Williams College — 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 Louis Foundation Inc?
Find your warmest path to Louis 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.