Liabilities / Assets
30th percentile
Higher debt load relative to assets than 30% of similar nonprofits.
EIN 99-2255770 • 501(c)3 • Palo Alto, CA
Profile
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.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
30th percentile
Higher debt load relative to assets than 30% of similar nonprofits.
Liabilities / Revenue
16th percentile
Higher debt load relative to revenue than 16% of similar nonprofits.
Net Margin
97th percentile
Higher net margin than 97% of similar nonprofits.
Top Officer Pay
5th percentile
Higher top officer pay than 5% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
Score unavailable
No earlier valid filing was available within the previous three public years.
Revenue Growth
Score unavailable
No earlier valid filing was available within the previous three public years.
Assets
$91,831,794
No earlier filing loaded for comparison.
Liabilities
$9,642,178
No earlier filing loaded for comparison.
Net Assets
$82,189,616
No earlier filing loaded for comparison.
Revenue
$100,933,791
No earlier filing loaded for comparison.
Expenses
$18,744,175
No earlier filing loaded for comparison.
Net Income
$82,189,616
No earlier filing loaded for comparison.
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
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.
Support various charitable cause areas to help others and our world with the resources available
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | - | $87,604,341 | - |
| Pledges and Grants Receivable | - | $4,219,766 | - |
| Prepaid Expenses and Deferred Charges | - | $7,687 | - |
| Total Assets | $0 | $91,831,794 | ▲ $91,831,794 |
| Liabilities | |||
| Grants Payable | - | $9,022,247 | - |
| Accounts Payable and Accrued Expenses | - | $619,931 | - |
| Total Liabilities | $0 | $9,642,178 | ▲ $9,642,178 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | - | $72,549,488 | - |
| Net Assets Without Donor Restrictions | - | $9,640,128 | - |
| Total Net Assets Fund Balance | $0 | $82,189,616 | ▲ $82,189,616 |
| Total Liabilities and Net Assets / Fund Balance | $0 | $91,831,794 | ▲ $91,831,794 |
| Name | Title |
|---|---|
| Cari Tuna | President/director |
| Alexander Berger | CEO/director |
| Holden Karnofsky | Secretary/director |
| Tom Van Loben Sels | Treasurer |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $18,087,407 |
| Other Expenses | $656,768 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $18,077,407 | - | - | $18,077,407 |
| Fees for Services Other | $619,000 | $5,014 | - | $624,014 |
| Fees for Services Legal | $316 | $21,787 | - | $22,103 |
| Foreign Grants | $10,000 | - | - | $10,000 |
| Insurance | - | $9,299 | - | $9,299 |
| Office Expenses | - | $1,352 | - | $1,352 |
| Total Functional Expenses | $18,706,723 | $37,452 | $0 | $18,744,175 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $18,786,147 |
| Expenses per Audited Statements | $18,744,175 |
| Total Expenses per Form 990 | $18,744,175 |
| Expenses Not Reported on Form 990 | $41,972 |
| Expenses Not Reported on Financial Statements | $0 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Blacksmith Institute Inc | New York, NY | 501(c)(3) | General Support | $14,747,897 |
| Center for Global Development | Washington, DC | 501(c)(3) | Work on Lead Exposure | $2,614,600 |
| Blacksmith Institute Inc | New York, NY | 501(c)(3) | General Support | $714,910 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Form 990 is reviewed by the audit committee and legal counsel and then distributed to the board of directors prior to filing.”
“The conflict of interest policy covers insiders, which include members of the board of directors, members of any committee with board-delegated responsibilities, corporate officers and those with equivalent responsibilities, any employee who is determined by the board to have substantial influence over the organization, and any person who met any of these criteria during the five years before a transaction giving rise to a potential conflict. The policy also covers interested persons, which include certain family members and entities owned by insiders. Insiders are required to submit a disclosure statement to the compliance officer before taking their position and annually thereafter that identifies to the best of the insider's knowledge and belief any interest that may give rise to a conflict of interest. The compliance officer will conduct an initial review of interests reported and present the matter to the conflict committee to determine whether a conflict of interest exists. The conflict committee determines whether the transaction satisfies the criteria of the policy, then the conflict committee will decide whether the organization will enter into the transaction.”
“The organization's governing documents, conflict of interest policy and financial statements are made available to the public upon request when required by federal or state law.”
“Financial statement footnote reporting uncertain tax positions: the organization recognizes the tax benefit from uncertain tax positions only if it is more likely than not that the tax positions will be sustained on examination by the tax authorities, based on the technical merits of the position. The tax benefit is measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. The organization recognizes interest and penalties, if any, related to income tax matters in federal excise tax expense. The organization had no unrecognized tax benefits at december 31, 2024.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 619931 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | SUPPORT VARIOUS CHARITABLE CAUSE AREAS TO HELP OTHERS AND OUR WORLD WITH THE RESOURCES AVAILABLE |
| IRS990/AllOtherContributionsAmt | 0 | 99600266 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | APERCEN PARTNERS LLC |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6508047100 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 314 LYTTON AVE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | PALO ALTO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94301 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 99600266 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 18087407 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1333525 |
| IRS990/CYOtherExpensesAmt | 0 | 656768 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 82189616 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 18744175 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 100933791 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | 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. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 72549488 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 18706723 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 21787 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 316 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 22103 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 5014 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 619000 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 624014 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 10000 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 10000 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 2.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | CARI TUNA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ALEXANDER BERGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | HOLDEN KARNOFSKY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | TOM VAN LOBEN SELS |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CEO/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2024 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 3 |
| IRS990/GrantAmt | 0 | 18087407 |
| IRS990/GrantsPayableGrp/EOYAmt | 0 | 9022247 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 18077407 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 18077407 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 100933791 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 3 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InitialReturnInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 9299 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 9299 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1333525 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1333525 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 2 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | DE |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | 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. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 1 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 82189616 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 9640128 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1352 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 1352 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 4219766 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 7687 |
| IRS990/PrincipalOfficerNm | 0 | CARI TUNA |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 82189616 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 1 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 87604341 |
| IRS990ScheduleA/First5Years170Ind | 0 | X |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | THE 2024 TAX YEAR IS A SHORT YEAR COVERING THE PERIOD APRIL 1, 2024 THROUGH DECEMBER 31, 2024, DUE TO THAT BEING THE ORGANIZATION'S FIRST YEAR IN EXISTENCE. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART II - EXPLANATION FOR SHORT YEAR |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 99600266 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 99600266 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 1333525 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 1333525 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 79175794 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 20424472 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 99600266 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 99600266 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 100933791 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
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| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
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| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 41972 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 41972 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 41972 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 18744175 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 41972 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 100933791 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | FINANCIAL STATEMENT FOOTNOTE REPORTING UNCERTAIN TAX POSITIONS: THE ORGANIZATION RECOGNIZES THE TAX BENEFIT FROM UNCERTAIN TAX POSITIONS ONLY IF IT IS MORE LIKELY THAN NOT THAT THE TAX POSITIONS WILL BE SUSTAINED ON EXAMINATION BY THE TAX AUTHORITIES, BASED ON THE TECHNICAL MERITS OF THE POSITION. THE TAX BENEFIT IS MEASURED BASED ON THE LARGEST BENEFIT THAT HAS A GREATER THAN 50% LIKELIHOOD OF BEING REALIZED UPON ULTIMATE SETTLEMENT. THE ORGANIZATION RECOGNIZES INTEREST AND PENALTIES, IF ANY, RELATED TO INCOME TAX MATTERS IN FEDERAL EXCISE TAX EXPENSE. THE ORGANIZATION HAD NO UNRECOGNIZED TAX BENEFITS AT DECEMBER 31, 2024. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 18744175 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 100933791 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 100975763 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 18786147 |
| IRS990ScheduleF/BoycottCountriesInd | 0 | 0 |
| IRS990ScheduleF/ContinuationSpentAmt | 0 | 0 |
| IRS990ScheduleF/ContinuationTotalEmployeeCnt | 0 | 0 |
| IRS990ScheduleF/ContinuationTotalOfficeCnt | 0 | 0 |
| IRS990ScheduleF/ForeignCorpOwnershipInd | 0 | 0 |
| IRS990ScheduleF/ForeignPartnershipInd | 0 | 0 |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/CashGrantAmt | 0 | 10000 |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/MannerOfCashDisbursementTxt | 0 | WIRE TRANSFER |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/NonCashAssistanceAmt | 0 | 0 |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/PurposeOfGrantTxt | 0 | HOSTING AN EVENT ABOUT LEAD EXPOSURE TOGETHER WITH THE WORLD HEALTH SUMMIT |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/RegionTxt | 0 | EUROPE |
| IRS990ScheduleF/InterestInForeignTrustInd | 0 | 0 |
| IRS990ScheduleF/PassiveForeignInvestmestCoInd | 0 | 0 |
| IRS990ScheduleF/SubtotalEmployeesCnt | 0 | 0 |
| IRS990ScheduleF/SubtotalOfficesCnt | 0 | 0 |
| IRS990ScheduleF/SubtotalSpentAmt | 0 | 0 |
| IRS990ScheduleF/SupplementalInformationDetail/ExplanationTxt | 0 | GRANTS REPORTED IN PART II ARE ACCOUNTED FOR UNDER THE ACCRUAL METHOD. |
| IRS990ScheduleF/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART II, LINE 1 (ACCOUNTING METHOD): |
| IRS990ScheduleF/Total501c3OrgCnt | 0 | 0 |
| IRS990ScheduleF/TotalEmployeeCnt | 0 | 0 |
| IRS990ScheduleF/TotalOfficeCnt | 0 | 0 |
| IRS990ScheduleF/TotalOtherOrgCnt | 0 | 1 |
| IRS990ScheduleF/TotalSpentAmt | 0 | 0 |
| IRS990ScheduleF/TransferToForeignCorpInd | 0 | 0 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 1 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 14747897 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 1 | 714910 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 2 | 2614600 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 0 | 501(C)(3) |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 1 | 501(C)(3) |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 2 | 501(C)(3) |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 0 | 0 |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 1 | 0 |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 2 | 0 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | GENERAL SUPPORT |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 1 | GENERAL SUPPORT |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 2 | WORK ON LEAD EXPOSURE |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | BLACKSMITH INSTITUTE INC |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 1 | BLACKSMITH INSTITUTE INC |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 2 | CENTER FOR GLOBAL DEVELOPMENT |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 134075779 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 1 | 134075779 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 2 | 522351337 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 475 RIVERSIDE DR STE 860 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 1 | 475 RIVERSIDE DR STE 860 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 2 | 2055 L ST NW 5TH FL |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | NEW YORK |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 1 | NEW YORK |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 2 | WASHINGTON |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 2 | DC |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 10115 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 1 | 10115 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 2 | 20036 |
| IRS990ScheduleI/SupplementalInformationDetail/ExplanationTxt | 0 | PROCEDURES FOR MONITORING THE USE OF GRANTS INSIDE THE UNITED STATES: IF THE GRANT IS FOR GENERAL SUPPORT, THE GRANTEE CERTIFIES VIA THE GRANT AGREEMENT THAT THE FUNDS WILL FURTHER THE ORGANIZATION'S TAX-EXEMPT PURPOSES IN ACCORDANCE WITH THE ORGANIZATION'S TAX-EXEMPT STATUS AND THE GRANTEE'S NONPROFIT OR TAX-EXEMPT STATUS (AS APPLICABLE). IF THE GRANT IS FOR A SPECIFIC PROJECT OR PURPOSE, THE GRANT AGREEMENT INCLUDES THE SAFEGUARDS DESCRIBED ABOVE AND THE GRANTEE MUST PROVIDE REPORTING ON THE RESULTS OF THE PROJECT OR PURPOSE. IN EACH CASE, THE GRANTEE MUST PROVIDE ADDITIONAL INFORMATION AND REPORTING UPON THE ORGANIZATION'S REQUEST. |
| IRS990ScheduleI/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 2: |
| IRS990ScheduleI/Total501c3OrgCnt | 0 | 2 |
| IRS990ScheduleI/TotalOtherOrgCnt | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | FORM 990 IS REVIEWED BY THE AUDIT COMMITTEE AND LEGAL COUNSEL AND THEN DISTRIBUTED TO THE BOARD OF DIRECTORS PRIOR TO FILING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE CONFLICT OF INTEREST POLICY COVERS INSIDERS, WHICH INCLUDE MEMBERS OF THE BOARD OF DIRECTORS, MEMBERS OF ANY COMMITTEE WITH BOARD-DELEGATED RESPONSIBILITIES, CORPORATE OFFICERS AND THOSE WITH EQUIVALENT RESPONSIBILITIES, ANY EMPLOYEE WHO IS DETERMINED BY THE BOARD TO HAVE SUBSTANTIAL INFLUENCE OVER THE ORGANIZATION, AND ANY PERSON WHO MET ANY OF THESE CRITERIA DURING THE FIVE YEARS BEFORE A TRANSACTION GIVING RISE TO A POTENTIAL CONFLICT. THE POLICY ALSO COVERS INTERESTED PERSONS, WHICH INCLUDE CERTAIN FAMILY MEMBERS AND ENTITIES OWNED BY INSIDERS. INSIDERS ARE REQUIRED TO SUBMIT A DISCLOSURE STATEMENT TO THE COMPLIANCE OFFICER BEFORE TAKING THEIR POSITION AND ANNUALLY THEREAFTER THAT IDENTIFIES TO THE BEST OF THE INSIDER'S KNOWLEDGE AND BELIEF ANY INTEREST THAT MAY GIVE RISE TO A CONFLICT OF INTEREST. THE COMPLIANCE OFFICER WILL CONDUCT AN INITIAL REVIEW OF INTERESTS REPORTED AND PRESENT THE MATTER TO THE CONFLICT COMMITTEE TO DETERMINE WHETHER A CONFLICT OF INTEREST EXISTS. THE CONFLICT COMMITTEE DETERMINES WHETHER THE TRANSACTION SATISFIES THE CRITERIA OF THE POLICY, THEN THE CONFLICT COMMITTEE WILL DECIDE WHETHER THE ORGANIZATION WILL ENTER INTO THE TRANSACTION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE ORGANIZATION'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST WHEN REQUIRED BY FEDERAL OR STATE LAW. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION B, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION B, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990ScheduleR/AssetExchangeInd | 0 | 0 |
| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 0 | 1 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 1 | 1 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 0 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 1 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 0 | OPEN PHILANTHROPY |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 1 | OPEN PHILANTHROPY ACTION FUND |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/EIN | 0 | 810737472 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/EIN | 1 | 812644663 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 0 | 501(C)(3) |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 1 | 501(C)(4) |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/LegalDomicileStateCd | 0 | CA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/LegalDomicileStateCd | 1 | CA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PrimaryActivitiesTxt | 0 | PHILANTHROPY |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PrimaryActivitiesTxt | 1 | PHILANTHROPY |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PublicCharityStatusTxt | 0 | LINE 7 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PublicCharityStatusTxt | 1 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/AddressLine1Txt | 0 | 314 LYTTON AVE |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/AddressLine1Txt | 1 | 314 LYTTON AVE |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/CityNm | 0 | PALO ALTO |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/CityNm | 1 | PALO ALTO |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 1 | CA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/ZIPCd | 0 | 94301 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/ZIPCd | 1 | 94301 |
| IRS990ScheduleR/LoansOrGuaranteesFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/LoansOrGuaranteesToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PaidEmployeesSharingInd | 0 | 0 |
| IRS990ScheduleR/PerformOfServicesByOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PerformOfServicesForOthOrgInd | 0 | 0 |
| IRS990ScheduleR/ReceiptOfIntAnntsRntsRyltsInd | 0 | 0 |
| IRS990ScheduleR/ReimbursementPaidByOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/ReimbursementPaidToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/RentalOfFacilitiesToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/RentalOfFcltsFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/SharingOfFacilitiesInd | 0 | 0 |
| IRS990ScheduleR/TransferFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/TransferToOtherOrgInd | 0 | 0 |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |
| IRS990/SignificantNewProgramSrvcInd | 0 | 0 |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 1 | CO |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 2 | CT |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 3 | FL |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 4 | MD |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 5 | MA |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 6 | NY |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 7 | OH |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 8 | PA |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 9 | VA |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 10 | WA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | 0 |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | 0 |
| IRS990/TaxablePartyNotificationInd | 0 | 0 |
| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TerminateOperationsInd | 0 | 0 |
| IRS990/TotalAssetsEOYAmt | 0 | 91831794 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 0 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 91831794 |
| IRS990/TotalCompGreaterThan150KInd | 0 | 0 |
| IRS990/TotalContributionsAmt | 0 | 99600266 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 37452 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 18706723 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 18744175 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 9642178 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 9642178 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 82189616 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 18706723 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 1333525 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 100933791 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 4 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 0 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 91831794 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TransactionWithControlEntInd | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | 0 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 314 LYTTON AVE |
| IRS990/USAddress/CityNm | 0 | PALO ALTO |
| IRS990/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/USAddress/ZIPCd | 0 | 94301 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 3 |
| IRS990/VotingMembersIndependentCnt | 0 | 3 |
| IRS990/WebsiteAddressTxt | 0 | N/A |
| IRS990/WhistleblowerPolicyInd | 0 | 1 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | TOM VAN LOBEN SELS |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6508047100 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-11-16 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | OPEN PHILANTHROPY ADVISORS INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | OPEN |
| ReturnHeader/Filer/EIN | 0 | 992255770 |
| ReturnHeader/Filer/PhoneNum | 0 | 6508047100 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 314 LYTTON AVE |
| ReturnHeader/Filer/USAddress/CityNm | 0 | PALO ALTO |
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