Maryland · Nonprofit
AIP FOUNDATION
AIP FOUNDATION (Maryland) receives grants from 7 organizations whose IRS filings report $855,729 to it, the largest being THE HEISING-SIMONS FOUNDATION ($557,750). 3 of them have funded it in more than one year.
- Revenue FY2025
- $2.4M
- Funders on record
- 7
- Grants received
- $856k
- Net assets
- $15M
What Aip Foundation does
Mission
Aip Foundation is organized and operates exclusively for charitable, scientific, and educational purposes within the meaning of section 501(c)(3) of the irs code 1986. Our mission is to inspire philanthropy that advances, promotes, and serves the physical sciences for the benefit of humanity.
As stated on its FY2025 Form 990.
Programs
Aip Foundation is organized and operates exclusively for charitable, scientific, and educational purposes within the meaning of section 501 (c ) (3) of the irs code 1986. In keeping with its mission to advance, promote and serve the physical sciences for the benefit of humanity, aip offers unique expertise and products in: student engagement; preservation and promulgation of the history of the physical sciences; content delivery; magazine publishing; statistical research; and public policy reporting, research and analysis. (expenses $ including grants of $) see schedule o
$3,994,725 spent100% of program spendingSociety of physics students (sps) is a national community of physics and astronomy undergraduates and their mentors; sigma pi sigma is the physics honor society with lifelong members. These programs champion the voices of undergraduates and early-career professionals by integrating their voices as essential in shaping the future of the physical sciences, so that aip highlights their roles across workforce, education, and innovation conversations. (expenses $ including grants of $) see schedule o
Aip established its history programs, which include the niels bohr library, in 1962. The niels bohr library & archives is a repository and clearinghouse for information in the history of physics, astronomy, geophysics, and allied fields. In-house holdings include an outstanding collection of textbooks, monographs, rare books, and related publications; over 30,000 photographs and other images; over 2,000 online oral history interviews with many of the outstanding figures in the physical sciences; archival records of aip and its member societies, along with other archival records and personal papers of a select number of scientists. Aip's history programs support scholarly efforts to document, investigate, and understand developments in modern physics and their impact on society. It does so through support of early-career historians, online exhibits, grants-in-aid to researchers, original scholarly publications, oral history interviews, hosting convenings, and participating in national and international conferences and history projects. (expenses $ including grants of $) see schedule o
Aip is deeply committed to advancing career opportunities in the physical sciences and cultivating a culture of stem excellence that supports inclusive, welcoming environments. Our efforts focus on ensuring that anyone interested in the physical sciences can thrive throughout their educational and professional journey. Guided by data, we prioritize communities where investment is most needed-working to ensure that no one is left behind. Team-up together (tu-t) is a collective action initiative established by the american association of physics teachers, american astronomical society, american institute of physics, american physical society, and society of physics students to drive systemic change in the physical sciences community. Team-up together aims to break down the starkest barriers to student success in physics and astronomy to ensure equal opportunity for all . Aipf fundraises for the campaign to support tu-t. Aip's award program honors outstanding achievements in excellence in physics and raises public awareness of the contributions that physicists make to society. Aip further supported the physical sciences community to meet program goals by launching a digital…
The 4 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $3,994,725.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $932k to $17M (+1756%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
84% of AIP FOUNDATION’s revenue is contributions — more donation-reliant than the typical peer (68% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 7 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2022 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $400 → $510k.
1 of 7 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 3% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of AIP FOUNDATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
AIP FOUNDATION leans on a few funders — its largest provides 65% of grant income and the top three 97%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2022 100% · 2023 98% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
AIP FOUNDATION draws 100% of its grant income from funders outside Maryland, across 4 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $23k arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
AIP FOUNDATION has grown faster than three-quarters of the 234 science & tech nonprofits its size.
this organization peer median middle 50% of peers· 234 science & tech nonprofits $1M–$10M, FY2025
Organizations like AIP FOUNDATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Maryland
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
71% of spending goes to programs.
Governance
Public support
0%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 2 states
Part of a family of 1 related entity
- American Institute of Physics · exempt
Screen this organization
A dated, signed PDF of the compliance screen for AIP FOUNDATION: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds AIP FOUNDATION?
- AIP FOUNDATION (Maryland) receives grants from 7 organizations whose IRS filings report $855,729 to it, the largest being THE HEISING-SIMONS FOUNDATION ($557,750). 3 of them have funded it in more than one year.
- How many funders does AIP FOUNDATION have?
- IRS filings report 7 organizations giving $855,729 in grants to AIP FOUNDATION, 3 of which have funded it in more than one year.
- Who is the largest funder of AIP FOUNDATION?
- THE HEISING-SIMONS FOUNDATION is the largest funder on record, with $557,750 in grants. The full list of funders is on this page.
- How can an organization like AIP FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Maryland. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Aip →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), and the filings of 7 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing