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Plinth

· Public charity

American Institute of Physics Inc

Aip advances the physical sciences as a federation and an institute.

$3.0M
Granted FY2024still arriving
18
Grants FY2024still arriving
11
States reached
$200k
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
01What you fund
01100% classified

What you funded, over time

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

Education$2.8MScience & Tech$2.2MHealth$293kEnvironment$235kArts & Culture$41kYouth Development$25k
02FY2024 · 18 grants

Where the money goes

Your grants by size, and where they go.

The 18 grants below total $1,636,207 — the rows itemised in this filing. The $3,008,015 headline is the total grant expense reported on the return, so the remaining $1,371,808 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.

By grant size · FY2024

  • Under $10k2 grants · $13k
  • $10k–50k5 grants · $106k
  • $50k–250k11 grants · $1.5M
$67,841
Median grant
11
States reached
$301M
Total assets
Largest grants
RecipientAmount
Albion College$200,000
Spelman College$200,000
Georgia State University Research Foundation Inc$200,000
Morgan State University Foundation$200,000
Arizona State University$190,000
Chicago State Uni$185,000
American Physical Society$87,373
George Washington University$73,288
American Meteorological Society$67,841
American Assoc of Physics Teachers$59,955
American Assoc of Physicists In Medicine$53,500
Society of Rheology$35,000
American Astronomical Society$26,250
John Carroll University$25,000
University of Notre Dame Du Lac$10,000
02The need
03

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.

show:

Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 54% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.

area typical 11%MASS COLLEGE OF LIBERAL ARTS FND: $110k → 12%AMERICAN METEOROLOGICAL SOCIETY: $115k → 16%Acoustical Society of America: $87k → 7%ROCHESTER INSTITUTE OF TECHNOLOGY: $200k → 14%LAMAR UNIVERSITY: $200k → 19%Albion College: $200k → 14%NORTH CAROLINA CENTRAL UNIVERSITY: $200k → 11%Georgia State University Research Foundation Inc: $200k → 13%Chicago State Uni: $185k → 14%The Board of Trustees Univ of IL: $200k → 19%American Assoc of Physicists in Medicine: $93k → 9%Society of Rheology: $35k → 8%Univerity of Maryland Foundation: $1.0M → 11%Morgan State University Foundation: $200k → 19%American Meteorological Society: $68k → 16%ACOUSTICAL SOCIETY OF AMERICA: $40k → 7%AMERICAN VACUUM SOCIETY: $41k → 17%American Astronomical Society: $82k → 14%Spelman College: $200k → 13%AMERICAN ASSOC OF PHYSICISTS IN MEDICINE: $57k → 9%Univerity of Maryland Foundation: $40k → 11%AMERICAN METEOROLOGICAL SOCIETY: $28k → 16%ACOUSTICAL SOCIETY OF AMERICA: $33k → 7%AMERICAN VACUUM SOCIETY: $33k → 17%AMERICAN ASTRONOMICAL SOCIETY: $42k → 14%American Assoc of Physicists In Medicine: $54k → 9%American Association of Physics Teachers: $141k → 11%AVS The Science & Technology Society: $30k → 17%The Optical Society: $50k → 14%American Association of Physicists in Med: $44k → 9%AMERICAN ASSOCIATION OF PHYSICS TEACHERS: $98k → 11%AVS The Science & Technology Society: $30k → 17%AMERICAN ASTRONOMICAL SOCIETY: $42k → 14%AMERICAN ASSOC OF PHYSICISTS IN MEDICINE: $38k → 9%American Physical Society: $87k → 11%American Association of Physics Teachers: $67k → 11%American Assoc of Physics Teachers: $60k → 11%AMERICAN PHYSICAL SOCIETY: $42k → 11%American Physical Society: $36k → 11%American Association of Physics Teachers: $32k → 11%American Physical Society: $29k → 11%Society of Rheology: $27k → 11%GEORGE WASHINGTON UNIVERSITY: $75k → 14%GEORGE WASHINGTON UNIVERSITY: $74k → 14%George Washington University: $73k → 14%GEORGE WASHINGTON UNIVERSITY: $48k → 14%George Washington University: $33k → 14%George Washington University: $29k → 14%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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

IL
MI
NY
MA
IN
OH
PA
CA
CO
VA
MD
AZ
NC
DC
OK
GA
TX
FL

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.

03Your edge
repeat funding

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.

61%of every dollar goes to organizations you’ve funded before.
$3.3M · 15 repeat orgs$2.1M to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +22% since the first grant, against +21% for the ones you funded once.

15 repeat relationships — 9 still active in FY2024, 6 since wound down; 7 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
22

Total granted

$3.3M
$1.1M

Median revenue growth · since first grant

+22%
+21%

Still filing today

87%
59%

New vs renewed · share of each year

In FY2024, 29% of grant dollars renewed an existing relationship; $1.0M went to new ones.

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

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

’17’18’19’20’21’22’23’24
EducationScience & TechArts & CultureHealthOther

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

  • UO
    UNIVERSITY OF MARYLAND FOUNDATION INC
    2× · 2020–2021 · $1.0M · revenue +22%
  • AA
    American Association of Physics Teachers Inc
    6× · 2018–2024 · $407k · revenue +3%
  • TG
    The George Washington University
    6× · 2017–2024 · $332k · revenue +30%

Funded once

  • NC
    NORTH CAROLINA CENTRAL UNIVERSITY
    one grant, 2023 · $200k
  • LU
    Lamar University
    one grant, 2023 · $200k
  • TB
    THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    one grant, 2023 · $200k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

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.

1
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
2
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
3
Augustana College

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…

Education
4
American Geophysical Union

Agu's mission is to advance and support an inclusive community of earth and space scientists and partners dedicated to discovery and solutions to societal challenges. agu seeks to catalyze discovery and solutions to scientific and societal…

Science & Tech
5
Association of American Universities Inc

Founded in 1900, aau is composed of 71 distinguished institutions in the united states and canada that continually advance society through education, research, and discovery. our u.s. member universities earn the majority of competitively…

Education
6
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
7
Association of Universities for Research in Astronomy Inc

Aura provides innovative, open resources to enable discovery and excellence in research, to unify the astrophysics communities, and to promote public understanding of our universe and the benefits of scientific exploration.

Science & Tech
8
American College of Radiology Association

The purpose of the association is the promotion of educational and professional association interests including but not limited to the promotion of the interests of radiology and the interests and study of the socioeconomic aspects of the…

Community Improvement
9
American Institute of Physics Inc

Aip advances the physical sciences as a federation and an institute. as a federation, aip works to advance the success of its member societies and affiliates so that they can leverage their diverse expertise and contributions in advancing…

Science & Tech
10
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
11
Aacsb International - the Association to Advance Collegiate Schools of Business

Aacsb international provides quality assurance of business school programs, the latest in business education intelligence, thought leadership, and learning and development services.

Education
12
American Academy of Arts & Sciences

Founded in 1780, the american academy of arts and sciences honors excellence and convenes leaders from every field of human endeavor to examine new ideas, address issues of importance to the nation and the world, and work together "to…

Social Science

For reference, the grantee most central to the portfolio’s shape is Acoustical Society of America and the most unlike its peers is American Crystallographic 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.

← shrinkinggrowing →↓ leaning in → pulling backsteadyPublic University Foundatio…Faith-Based Liberal Arts Co…Jewish Community FederationsCommunity Arts OrganizationsCommunity Health Centers
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

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 67 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%0%<5yr14%0%5–10yr19%6%10–20yr16%3%20–35yr13%30%35–55yr16%61%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%0%5–10yr19%7%10–20yr16%0%20–35yr13%40%35–55yr16%53%55yr+

The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close — 2% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
2%1/46
the rest of the field
13%
240,395/1,819,519

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.

04the grantee network

32 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. 32 of the 46 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.

0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
31/32
Grantees still filing
24/32
Grew since you first funded

Where your money sits — by cause, then by grantee

UNIVERSITY OF MARYLAND FOUNDATION INC — $1,040,000 · EducationUNIVERSITY OF MARYLAND FOUNDATION INCThe George Washington University — $332,035 · EducationThe George Washington UniversitySpelman College — $200,000 · EducationSpelman CollegeGEORGIA STATE UNIVERSITY RESEARCH FOUNDATION INC — $200,000 · EducationGEORGIA STATE UNIVERSITY RESEARCH FOUNDATION IN…ALBION COLLEGE — $200,000 · EducationALBION COLLEGERochester Institute of Technology — $199,661 · EducationRochester Institute of TechnologyMassachusetts College Of Liberal Arts Foundation Inc — $110,351 · Education+7 more — $101,900 · EducationAmerican Association of Physics Teachers Inc — $407,410 · Science & TechAmerican Association of Physics Teach…AMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE — $284,075 · Science & TechAMERICAN ASSOCIATION OF PHYSICISTS IN…AMERICAN PHYSICAL SOCIETY — $246,599 · Science & TechAMERICAN PHYSICAL SOCIETYAMERICAN METEOROLOGICAL SOCIETY — $234,543 · Science & TechAMERICAN METEOROLOGICAL SOCIETYAMERICAN ASTRONOMICAL SOCIETY — $232,287 · Science & TechAMERICAN ASTRONOMICAL SOCIETYACOUSTICAL SOCIETY OF AMERICA — $160,250 · Science & TechACOUSTICAL SOCIETY OF AMERICAAMERICAN VACUUM SOCIETY INCORPORATED — $143,360 · Science & TechAMERICAN VACUUM SOCIETY INCORPORATEDSOCIETY OF RHEOLOGY INCORPORATED — $95,783 · Science & Tech+4 more — $47,577 · Science & TechUNIVERSITY OF MARYLAND COLLEGE PARK — $200,000 · OtherUNIVERSITY OF MARYLAND COLL…NORTH CAROLINA CENTRAL UNIVERSITY — $200,000 · OtherNORTH CAROLINA CENTRAL UNIV…Lamar University — $199,999 · OtherLamar UniversityTHE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS — $199,944 · OtherTHE BOARD OF TRUSTEES OF TH…ARIZONA STATE UNIVERSITY — $190,000 · OtherARIZONA STATE UNIVERSITYChicago State University — $185,000 · OtherChicago State University+10 more — $176,378 · Other+10 moreOptical Society of America Inc — $50,000 · HealthTHE CENTER FOR JEWISH HISTORY INC — $10,000 · Arts & CultureAMERICAN PHILOSOPHICAL SOCIETY — $10,000 · Arts & CultureMUSEUM OF INNOVATION AND SCIENCE — $9,986 · Arts & Culture
Education$2,383,947Science & Tech$1,851,884Other$1,351,321Health$50,000Arts & Culture$29,986

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetUNIVERSITY OF MARYLAND FOUNDATION INC — $1,040,000 over 2y, 1.6% of budgetAmerican Association of Physics Teachers Inc — $407,410 over 6y, 3.1% of budgetThe George Washington University — $332,035 over 6y, 0.0% of budgetAMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE — $284,075 over 5y, 0.9% of budgetAMERICAN PHYSICAL SOCIETY — $246,599 over 7y, 0.1% of budgetAMERICAN METEOROLOGICAL SOCIETY — $234,543 over 4y, 0.7% of budgetAMERICAN ASTRONOMICAL SOCIETY — $232,287 over 7y, 0.6% of budgetSpelman College — $200,000 over 1y, 0.1% of budgetGEORGIA STATE UNIVERSITY RESEARCH FOUNDATION INC — $200,000 over 1y, 0.1% of budgetALBION COLLEGE — $200,000 over 1y, 0.2% of budgetRochester Institute of Technology — $199,661 over 1y, 0.0% of budgetACOUSTICAL SOCIETY OF AMERICA — $160,250 over 3y, 1.9% of budgetAMERICAN VACUUM SOCIETY INCORPORATED — $143,360 over 5y, 0.7% of budgetMassachusetts College Of Liberal Arts Foundation Inc — $110,351 over 1y, 2.7% of budgetSOCIETY OF RHEOLOGY INCORPORATED — $95,783 over 4y, 8.1% of budgetOptical Society of America Inc — $50,000 over 1y, 0.1% of budgetUNIVERSITY OF THE SCIENCES IN PHILADELPHIA — $37,500 over 2y, 0.0% of budgetUniversity of Mount Union — $22,000 over 2y, 0.0% of budgetRANDOLPH COLLEGE INC — $20,400 over 1y, 0.0% of budgetCALIFORNIA INSTITUTE OF TECHNOLOGY — $20,000 over 2y, 0.0% of budgetAMERICAN CHEMICAL SOCIETY — $19,500 over 3y, 0.0% of budgetOHIO STATE UNIVERSITY FOUNDATION — $12,500 over 1y, 0.0% of budgetAMERICAN CRYSTALLOGRAPHIC ASSOCIATION INC — $12,000 over 1y, 2.3% of budgetNational History Day Inc — $11,000 over 1y, 0.3% of budgetUniversity of Notre Dame du Lac — $10,000 over 1y, 0.0% of budgetTHE CENTER FOR JEWISH HISTORY INC — $10,000 over 1y, 0.1% of budgetAMERICAN PHILOSOPHICAL SOCIETY — $10,000 over 1y, 0.1% of budgetCARNEGIE INSTITUTION OF WASHINGTON — $10,000 over 1y, 0.0% of budgetMUSEUM OF INNOVATION AND SCIENCE — $9,986 over 1y, 0.6% of budgetTEXAS LUTHERAN UNIVERSITY — $6,395 over 1y, 0.0% of budgetUNIVERSITY CORPORATION FOR ATMOSPHERIC RESEARCH — $6,077 over 1y, 0.0% of budgetROANOKE COLLEGE — $6,000 over 1y, 0.0% of budget
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.

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.

National Collegiate A…Gordon E and Betty I …The Kavli FoundationThe Trustees of Colum…Folds of Honor Founda…Johns Hopkins Univers…Shell USA Company Fou…The Pfizer Foundation…Morgan Stanley Global…Vanguard Charitable E…American Endowment Fo…National Philanthropi…
National Collegiate Athletic AssociationIN17.3× affinity6 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Collegiate Athletic Association · Gordon E and Betty I Moore Foundation · The Kavli Foundation · The Trustees of Columbia University in the City of New York · Folds of Honor Foundation · Johns Hopkins University · Shell USA Company Foundation · The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · American Endowment Foundation · National Philanthropic Trust

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 American Institute of Physics 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, a single department, or state — and drag the year to watch it move.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%your share of their income ↑0%25%50%75%100%share of the org’s income from government →median 2%
  • National History Day Inc — 13% of income from government
  • American Meteorological Society — 5% of income from government
  • American Association of Physics Teachers Inc — 2% of income from government
  • American Physical Society — 1% of income from government
  • University of Maryland Foundation Inc — 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
6report 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

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.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 46 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990 e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home