California · Nonprofit
GOLDEN GATE STEM FAIR
GOLDEN GATE STEM FAIR (California) receives grants from 4 organizations whose IRS filings report $43,944 to it, the largest being The Mathenaeum Foundation ($16,384). 1 of them have funded it in more than one year.
Against its field
GOLDEN GATE STEM FAIR runs a healthier operating margin than three-quarters of the 9,005 recreation & sports nonprofits its size.
this organization peer median middle 50% of peers· 9,005 recreation & sports nonprofits under $100k, FY2025
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.
- William K Bowes Jr Foundationshared funders
- Broadcom Foundationportfolio match
- Society for Science & the Publicportfolio match
The organization over time
Each line starts at 100 in 2018, so what you read is the shape rather than the size: 150 means half as much again as 2018, 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.
100% of GOLDEN GATE STEM FAIR’s revenue is contributions — more reliant on donations than three-quarters of its peers (39% 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
2019 → 2023: the base held at 1 funder, grant income fell $16k → $3k.
1 of 4 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 33% 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 GOLDEN GATE STEM FAIR’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
GOLDEN GATE STEM FAIR leans on a few funders — its largest provides 37% of grant income and the top three 93%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
33% 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 GOLDEN GATE STEM FAIR.
Largest funder’s share by year: 2019 100% · 2020 65% · 2021 63% · 2022 100% · 2023 100% — 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
GOLDEN GATE STEM FAIR draws 56% of its grant income from funders outside California, across 2 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $15k arriving through sponsors registered in 1 stateis 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.
- William K Bowes Jr Foundationshared fundersCA · backs 18 organizations that share your funders
- Broadcom Foundationportfolio matchits grantees resemble your mission
- Society for Science & the Publicportfolio matchits grantees resemble your mission
- General Atomics Sciences Education Foundationportfolio matchits grantees resemble your mission
- Helzel Family Foundationportfolio matchits grantees resemble your mission
- Lumos Charitable Foundationportfolio matchits grantees resemble your mission
- House Family Foundationportfolio matchits grantees resemble your mission
- X&W Foundationportfolio matchits grantees resemble your mission
- Beckman Coulter Foundationportfolio matchits grantees resemble your mission
- Intel Foundationportfolio matchits grantees resemble your mission
- For Inspiration and Recognition of Science and Technology (FIRST)portfolio matchits grantees resemble your mission
- Mimi and Peter Haas Fundshared fundersCA · backs 26 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.
Organizations like GOLDEN GATE STEM FAIR
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
12% of spending goes to programs.
Governance
Public support
49%
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 GOLDEN GATE STEM FAIR: 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 GOLDEN GATE STEM FAIR?
- GOLDEN GATE STEM FAIR (California) receives grants from 4 organizations whose IRS filings report $43,944 to it, the largest being The Mathenaeum Foundation ($16,384). 1 of them have funded it in more than one year.
- How many funders does GOLDEN GATE STEM FAIR have?
- IRS filings report 4 organizations giving $43,944 in grants to GOLDEN GATE STEM FAIR, 1 of which have funded it in more than one year.
- Who is the largest funder of GOLDEN GATE STEM FAIR?
- The Mathenaeum Foundation is the largest funder on record, with $16,384 in grants. The full list of funders is on this page.
- How can an organization like GOLDEN GATE STEM FAIR find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 FY2025 (financials across 2018–2025), and the filings of 4funders 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