California · Nonprofit
OPEN PHILANTHROPY ADVISORS INC
OPEN PHILANTHROPY ADVISORS INC (California) receives grants from 5 organizations whose IRS filings report $71,000,000 to it, the largest being NATIONAL PHILANTHROPIC TRUST ($50,000,000). 0 of them have funded it in more than one year, and 86% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2024
- $101M
- Funders on record
- 5
- Grants received
- $71M
- Net assets
- $82M
What Open Philanthropy Advisors Inc does
Mission
Build upon existing research identifying the most effective philanthropic causes, by further researching these causes, promoting these causes, attracting new funders to donate to these causes, and making grants to directly help others and our world.
As stated on its FY2024 Form 990.
Program
In support of identified philanthropic causes, the organization engages in grantmaking to individuals and organizations doing great work in the most effective cause areas, fundraising and community building to raise awareness and funds to support those causes, research and education in the philanthropic space, assistance with career transitions for individuals moving out of the private sector, and advocacy and policy development.
$18,706,723 spentof which $18,087,407 as grants100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $18,706,723.
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.
Chief executive
Alexander Berger
CEO/director
As listed on its FY2024 Form 990.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
4 of 5 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 86% 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: $10M from one payer (the payer shares this organization's board, largest Good Ventures Foundation). These are real filings, and they are not money OPEN PHILANTHROPY ADVISORS INC raised.
From the IRS filings of OPEN PHILANTHROPY ADVISORS 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
OPEN PHILANTHROPY ADVISORS INC leans on a few funders — its largest provides 70% of grant income and the top three 92%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
86% 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 OPEN PHILANTHROPY ADVISORS INC.
“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
86% of OPEN PHILANTHROPY ADVISORS INC's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $10M that is directly attributable, 100% of it comes from funders outside California, across 1 state.
Funder states come from each funder’s own filing. $61M arriving through sponsors registered in 3 states 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
OPEN PHILANTHROPY ADVISORS INC runs a healthier operating margin than three-quarters of the 153 philanthropy nonprofits its size.
this organization peer median middle 50% of peers· 153 philanthropy nonprofits over $100M, FY2024
Organizations like OPEN PHILANTHROPY ADVISORS INC
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
100% of spending goes to programs.
Governance
Footprint & structure
Files a return copy in 11 states
Part of a family of 2 related entities
- Open Philanthropy · exempt
- Open Philanthropy Action Fund · exempt
Screen this organization
A dated, signed PDF of the compliance screen for OPEN PHILANTHROPY ADVISORS 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. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds OPEN PHILANTHROPY ADVISORS INC?
- OPEN PHILANTHROPY ADVISORS INC (California) receives grants from 5 organizations whose IRS filings report $71,000,000 to it, the largest being NATIONAL PHILANTHROPIC TRUST ($50,000,000). 0 of them have funded it in more than one year, and 86% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does OPEN PHILANTHROPY ADVISORS INC have?
- IRS filings report 5 organizations giving $71,000,000 in grants to OPEN PHILANTHROPY ADVISORS INC.
- Who is the largest funder of OPEN PHILANTHROPY ADVISORS INC?
- NATIONAL PHILANTHROPIC TRUST is the largest funder on record, with $50,000,000 in grants. The full list of funders is on this page.
- How can an organization like OPEN PHILANTHROPY ADVISORS INC 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 5 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 14, 2026. What this page cannot tell you · view filing