Maryland · Nonprofit
American Association of Physics Teachers Inc
American Association of Physics Teachers Inc (Maryland) receives grants from 6 organizations whose IRS filings report $237,417 to it, the largest being AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE ($155,743). 3 of them have funded it in more than one year.
Against its field
American Association of Physics Teachers Inc runs a healthier operating margin than half of the 481 science & tech nonprofits its size.
this organization peer median middle 50% of peers· 481 science & tech nonprofits $1M–$10M, FY2024
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- Association of Universities for Research in Astronomy Incshared funders
- American Physical Therapy Associationportfolio match
- Visitor Development Fund Incportfolio match
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 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.
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.
Government-grant reliance: 2017 23% · 2018 22% · 2020 19% · 2021 27% · 2022 35% · 2023 23% · 2024 18%. Grants only. Government contracts and fees sit inside program revenue.
29% of American Association of Physics Teachers Inc’s revenue is contributions — about as donation-reliant as the typical peer (68% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 7 reported years ran a deficit.
reserve
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $8k → $18k.
2 of 6 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 17% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $407k from one payer (the payer shares this organization's board, largest American Institute of Physics Inc). These are real filings, and they are not money American Association of Physics Teachers Inc raised.
From the IRS filings of American Association of Physics Teachers Inc’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
American Association of Physics Teachers Inc leans on a few funders — its largest provides 66% of grant income and the top three 94%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
100% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund American Association of Physics Teachers Inc.
Largest funder’s share by year: 2017 100% · 2018 100% · 2019 100% · 2020 100% · 2021 100% · 2022 99% · 2023 54% — diversifying over time.
“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
American Association of Physics Teachers Inc draws 86% 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. $40k arriving through sponsors registered in 2 statesis 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.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first. Your 6 funders put you under-funded among the 322 organizations that share them.
- Association of Universities for Research in Astronomy Incshared fundersDC · backs 83 organizations that share your funders
- American Physical Therapy Associationportfolio matchits grantees resemble your mission
- Visitor Development Fund Incportfolio matchits grantees resemble your mission
- Aft Disaster Relief Fundportfolio matchits grantees resemble your mission
- Mercer Family Foundationportfolio matchits grantees resemble your mission
- National Education Association of the United Statesportfolio matchits grantees resemble your mission
- United States Pharmacopeial Conventionportfolio matchits grantees resemble your mission
- The R Gordon & Ann M Douglas Foundatio Nportfolio matchits grantees resemble your mission
- American Institute of Certified Public Accountantsportfolio matchits grantees resemble your mission
- The Harjen Charitable Foundationportfolio matchits grantees resemble your mission
- Sarah Ketterer Family Foundationportfolio matchits grantees resemble your mission
- National Alliance for Research on Schizophrenia and Depressionshared fundersNY · backs 73 organizations that share your funders
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Government funding American Association of Physics Teachers Inc receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $7.3M on record — $7.3M federal, $15k state.
- National Science Foundation$7.0M
- National Aeronautics and Space Administration$313k
- Educational Services$14k
- Registration - Agency Direct$700
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like American Association of Physics Teachers Inc
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of 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
60% of spending goes to programs.
Governance
Public support
100%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for American Association of Physics Teachers Inc: 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. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds American Association of Physics Teachers Inc?
- American Association of Physics Teachers Inc (Maryland) receives grants from 6 organizations whose IRS filings report $237,417 to it, the largest being AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE ($155,743). 3 of them have funded it in more than one year.
- How many funders does American Association of Physics Teachers Inc have?
- IRS filings report 6 organizations giving $237,417 in grants to American Association of Physics Teachers Inc, 3 of which have funded it in more than one year.
- Who is the largest funder of American Association of Physics Teachers Inc?
- AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE is the largest funder on record, with $155,743 in grants. The full list of funders is on this page.
- How can an organization like American Association of Physics Teachers Inc 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.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 6funders 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 August 27, 2026. What this page cannot tell you · view filing