California · Nonprofit
EXPERIMENT FOUNDATION
EXPERIMENT FOUNDATION (California) receives grants from 3 organizations whose IRS filings report $475,000 to it, the largest being THE SCHMIDT FAMILY FOUNDATION ($250,000). 0 of them have funded it in more than one year.
Against its field
EXPERIMENT FOUNDATION receives grants from 3 organizations whose IRS filings report $475k to it.
this organization peer median middle 50% of peers· 792 science & tech nonprofits $100k–$1M, 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.
- The Marisla Foundationshared funders
- Michael Antonov Charitable Foundation Incportfolio match
- Renaissance Philanthropy Fundportfolio match
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
2 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 47% 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 EXPERIMENT 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
EXPERIMENT FOUNDATION leans on a few funders — its largest provides 53% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
47% 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 EXPERIMENT FOUNDATION.
“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
100% of EXPERIMENT FOUNDATION's grant income comes from California funders.
Funder states come from each funder’s own filing. $225k 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.
- The Marisla Foundationshared fundersCA · backs 28 organizations that share your funders
- Michael Antonov Charitable Foundation Incportfolio matchits grantees resemble your mission
- Renaissance Philanthropy Fundportfolio matchits grantees resemble your mission
- Social Good Labs Incorporatedportfolio matchits grantees resemble your mission
- Broadcom Foundationportfolio matchits grantees resemble your mission
- The Lemelson Foundationportfolio matchits grantees resemble your mission
- Schmidt Ocean Instituteportfolio matchits grantees resemble your mission
- Earth Day Texas Incportfolio matchits grantees resemble your mission
- Future of Life Instituteportfolio matchits grantees resemble your mission
- Mercatus Center Incportfolio matchits grantees resemble your mission
- Good Ventures Foundationportfolio matchits grantees resemble your mission
- Berkeley Existential Risk Initiativeportfolio matchits grantees resemble your mission
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 EXPERIMENT FOUNDATION
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
96% of spending goes to programs.
Governance
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for EXPERIMENT 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. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds EXPERIMENT FOUNDATION?
- EXPERIMENT FOUNDATION (California) receives grants from 3 organizations whose IRS filings report $475,000 to it, the largest being THE SCHMIDT FAMILY FOUNDATION ($250,000). 0 of them have funded it in more than one year.
- How many funders does EXPERIMENT FOUNDATION have?
- IRS filings report 3 organizations giving $475,000 in grants to EXPERIMENT FOUNDATION.
- Who is the largest funder of EXPERIMENT FOUNDATION?
- THE SCHMIDT FAMILY FOUNDATION is the largest funder on record, with $250,000 in grants. The full list of funders is on this page.
- How can an organization like EXPERIMENT FOUNDATION 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 FY2024 (financials across 2024–2024), and the filings of 3funders 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