Liabilities / Assets
17th percentile
Higher debt load relative to assets than 17% of similar nonprofits.
Berkeley Geochronology Center
EIN 94-3202572 • 501(c)3 • Berkeley, CA
Profile
Berkeley geochronology center is dedicated to establishing the history of the earth, its various inhabitants, and its interactions with the rest of our solar system, throughout the 4.6 billion years of our planet's existence. This mission is centered on development,refinement and application of geological dating methods.
Refreshing map…
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
0.01x
Liabilities / Revenue
28th percentile
Higher debt load relative to revenue than 28% of similar nonprofits.
Net Margin
17th percentile
Higher net margin than 17% of similar nonprofits.
Top Officer Pay
80th percentile
Higher top officer pay than 80% of similar nonprofits.
Top officer pay equals 10.4% of source-year revenue.
Asset Growth
96th percentile
Faster asset growth than 96% of similar nonprofits.
Revenue Growth
9th percentile
Faster revenue growth than 9% of similar nonprofits.
Balance Sheet
Assets
Up$19,213,526
Up $14,368,371 (+297%) from 2023
Liabilities
Down$229,590
Down $64,090 (-22%) from 2023
Net Assets
Up$18,983,936
Up $14,432,461 (+317%) from 2023
Revenue
Down$2,724,569
Down $2,750,933 (-50%) from 2023
Expenses
Down$3,019,137
Down $298,261 (-9.0%) from 2023
Net Income
Down-$294,568
Down $2,452,672 (-114%) from 2023
Trend Graphs
Filings
Most recent year
2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
- Assets
- $19,213,526
- Liabilities
- $229,590
- Net assets
- $18,983,936
- Revenue
- $2,724,569
- Expenses
- $3,019,137
- Net income
- -$294,568
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Apr 1, 2024 to Mar 31, 2025
- Signed
- Jan 12, 2026
- Return Version
- 2024v5.5
- Gross Receipts
- $2,724,569
Mission and Program Overview
Mission
Berkeley geochronology center (bgc) is dedicated to establishing the history of the earth, its various inhabitants, and its interactions with the rest of our solar system, throughout the 4.6 billion years of our planet's existence. This mission is centered on development, refinement and application of geological dating methods.
Research involving field sampling of geologic materials, sample preparation and analysis, software and methodology development, and publication of results.
Balance Sheet Detail
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $1,974,315 | $1,816,544 | ▼ $157,771 |
| Pledges and Grants Receivable | $1,601,128 | $1,639,541 | ▲ $38,413 |
| Land, Buildings, and Equipment, Net | $475,046 | $1,074,784 | ▲ $599,738 |
| Cash and Non-Interest-Bearing Accounts | $167,493 | $142,272 | ▼ $25,221 |
| Prepaid Expenses and Deferred Charges | $56,128 | $48,806 | ▼ $7,322 |
| Total Assets | $19,500,666 | $19,213,526 | ▼ $287,140 |
| Other Assets Total | $15,226,556 | $14,491,579 | ▼ $734,977 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $222,162 | $194,810 | ▼ $27,352 |
| Deferred Revenue | $0 | $34,780 | ▲ $34,780 |
| Total Liabilities | $222,162 | $229,590 | ▲ $7,428 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $17,778,504 | $17,483,936 | ▼ $294,568 |
| Net Assets With Donor Restrictions | $1,500,000 | $1,500,000 | → $0 |
| Total Net Assets Fund Balance | $19,278,504 | $18,983,936 | ▼ $294,568 |
| Total Liabilities and Net Assets / Fund Balance | $19,500,666 | $19,213,526 | ▼ $287,140 |
Asset Categories
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $1,000,900 | $2,907,582 | $3,908,482 |
| Leasehold Improvements | $73,884 | $661,819 | $735,703 |
| Other Assets Org | $14,489,228 | - | - |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Paul Renne | Member/president | FT | $206,381 | $75,948 | $282,329 |
| Warren Sharp | Geochronologist | FT | $128,222 | $64,154 | $192,376 |
| Alan Deino | Geochronologist | FT | $142,675 | $38,500 | $181,175 |
| Roland Mundil | Geochronologist | FT | $118,001 | $48,295 | $166,296 |
| Tania Borostyan | Sec/treas, Bus. Mgr/CFO | FT | $87,195 | $44,875 | $132,070 |
| William Cassata | Geochronologist | FT | $114,526 | $14,355 | $128,881 |
| Erica Morales Thru 124-624 | Sec/treas, Bus. Mgr/CFO | FT | $42,676 | $4,680 | $47,356 |
Board Members and Trustees
| Name | Title |
|---|---|
| John Clarke | Board Chair |
| Charles Bacon | Member |
| Charles Marshall | Member |
| Donald Dana | Member |
| Donald Depaolo | Member |
| Gordon Getty | Member |
| John Rea | Member |
| Naoma Tate | Member |
Revenue and Support
Revenue Composition
- Contributions and Grants
- $2,273,798
- Program Service Revenue
- $0
- Investment Income
- $32,229
- Other Revenue
- $418,542
- All Other Contributions
- $1,607,149
- Change in Net Assets
- $-294,568
Audited Revenue Reconciliation
- Revenue per Audited Statements
- $2,724,569
- Revenue Not Reported on Financial Statements
- $0
- Revenue Not Reported on Form 990
- $119,250
- Total Revenue per Audited Statements
- $2,843,819
- Total Revenue per Form 990
- $2,724,569
Expenses and Functional Allocation
Major Expense Lines
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $2,080,609 |
| Other Expenses | $879,048 |
| Grants and Similar Amounts Paid | $59,480 |
| Total Fundraising Expense | $1,223 |
| Professional Fundraising Fees | $0 |
Functional Expense Allocation
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $1,002,779 | $231,935 | $666 | $1,235,380 |
| Current Officers, Directors, Trustees, and Key Employees | $359,315 | $83,107 | $239 | $442,661 |
| Occupancy | $170,936 | $73,406 | $44 | $244,386 |
| Depreciation Depletion | $206,895 | $25,125 | $32 | $232,052 |
| Other Employee Benefits | $171,773 | $39,730 | $114 | $211,617 |
| Office Expenses | $161,581 | $9,742 | - | $171,323 |
| Payroll Taxes | $83,967 | $19,420 | $56 | $103,443 |
| Insurance | $78,665 | $14,374 | $20 | $93,059 |
| Pension Plan Contributions | $71,032 | $16,429 | $47 | $87,508 |
| Grants to Domestic Individuals | $59,480 | - | - | $59,480 |
| Travel | $48,783 | - | - | $48,783 |
| Fees for Services Accounting | - | $47,800 | - | $47,800 |
| Fees for Services Other | $7,375 | $7,763 | $2 | $15,140 |
| Other Expenses | $129 | $7,863 | $3 | $7,992 |
| Fees for Services Legal | - | $908 | - | $908 |
| Total Functional Expenses | $2,435,417 | $582,497 | $1,223 | $3,019,137 |
Audited Expense Reconciliation
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $3,138,387 |
| Expenses per Audited Statements | $3,019,137 |
| Total Expenses per Form 990 | $3,019,137 |
| Expenses Not Reported on Form 990 | $119,250 |
| Expenses Not Reported on Financial Statements | $0 |
Fundraising, Events, and Gaming
- Fundraising activities
- No
- Gaming activities
- No
- Professional fundraiser used
- No
Fundraising and Gaming Totals
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
Political and Lobbying Activity
- Political campaign activity
- No
- Lobbying activity
- No
- Subject to proxy tax
- No
Governance and Compliance
Governance Checklist
- Compiled or reviewed by an accountant
- No
- Annual disclosure for covered persons
- Yes
- Audit committee
- Yes
- Business relationship with 35% controlled entity
- No
- Business relationship with family members
- No
- Business relationship with organization members
- No
- Material changes to governing documents
- No
- Compensation from other sources disclosed
- No
- CEO compensation reviewed
- Yes
- Other officer compensation reviewed
- Yes
- Conflict-of-interest policy
- Yes
- Audited financial statements prepared
- No
- Key decisions subject to board approval
- No
- Management duties delegated
- No
Governance Explanations
Form 990, Part VI, Section B, Line 11B
“The form 990 is reviewed by the business manager who distributes copies to the president and audit committee, which acts on behalf of the board. All parties, including business manager, review. President and audit committee respond to business manager who informs auditor of any necessary changes. Upon receipt of updated form, business manager, president, and audit committee confirm changes, if any. President signs form. Business manager copies and transmits to tax boards.”
Form 990, Part VI, Section B, Line 12C
“All transactions between the institution and board members and/or officers are discussed at board meetings. Compensation to board members and/or officers is reviewed annually. All monetary transactions conducted by the treasurer are approved and/or reviewed by the president. All monetary purchases by, and reimbursements to, the president are reviewed annually by the board.”
Form 990, Part VI, Section B, Line 15
“The compensation for officers and key employees is reviewed annually by the compensation committee of the board and the board of directors at the july board meeting. The president presents for board deliberation the evaluations of the work of the key employees and one officer. Comparability data are presented and reviewed annually. The deliberations and decisions are recorded in the minutes of the meeting.”
Form 990, Part VI, Section C, Line 19
“The governing documents and financial statements are available at the state attorney general's (ag) website and wherever else these documents are published by the ag. The organization has not yet published the conflict of interest policy.”
Filing and Contact Details
Filer
- Filer Name
- Berkeley Geochronology Center
- EIN
- 94-3202572
- Phone
- 5106449200
- Address
- 2455 RIDGE ROAD, BERKELEY, CA 94709-1211
Signing Officer
- Name
- Paul Renne
- Title
- President
- Phone
- 5106449200
- Signed
- 2026-01-12
- Discuss with paid preparer
- Yes
Organization Details
- Principal Officer
- Paul Renne
- Formed
- 1994
- Legal Domicile
- CA
- Voting Board Members
- 9
- Independent Board Members
- 8
- Employees
- 26
- Volunteers
- 8
Preparer
- Firm
- Lindquist Von Husen & Joyce Llp
- Address
- 301 HOWARD STREET SUITE 850, SAN FRANCISCO, CA 94105
- Preparer
- Kyle Ganley
- Phone
- 4159579999
Supplemental Narrative
Additional Explanations
FORM 990, PART V, LINE 1C:
“During the tax year, the organization did not encounter any situations that would require backup withholding.”
FORM 990, PART V, LINE 7G:
“During the tax year, the organization did not receive any contributions of qualified intellectual property and therefore, it was not necessary for the organization to file a form 8899.”
FORM 990, PART V, LINE 7H:
“During the tax year, the organization did not receive any vehicle contributions and therefore, it was not necessary for the organization to file a form 1098-c.”
FORM 990, PART XII, LINE 2C:
“The process of selecting an auditor and overseeing the audit has not been changed.”
Financial Statement Notes
PART X, LINE 2:
“Bgc believes that it has appropriate support for any tax positions taken, and as such, does not have any uncertain tax positions that are material to the financial statements. Bgc's federal and state information returns for the years 2021 through 2024 are subject to examination by regulatory agencies, generally for three years and four years after they were filed for federal and state, respectively.”
Raw XML AppendixShowing 400 of 573 raw XML fields
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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| IRS990/Desc | 0 | GENERAL RESEARCH - BGC PRIMARY ACTIVITIES INCLUDE RESEARCH ON THE NATURE AND TIMING OF EVENTS IN THE HISTORY OF EARTH AND EVOLUTION OF INHABITANTS, REFINEMENT OF TECHNOLOGY, LABORATORY METHODS, AND DISSEMINATION OF RESULTS THROUGH PUBLICATIONS AND OTHER MEDIA. |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | BOARD CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | MEMBER/PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | SEC/TREAS, BUS. MGR/CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | SEC/TREAS, BUS. MGR/CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | GEOCHRONOLOGIST |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | GEOCHRONOLOGIST |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | GEOCHRONOLOGIST |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | GEOCHRONOLOGIST |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1994 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 9 |
| IRS990/GovernmentGrantsAmt | 0 | 666649 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 59480 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 59480 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 2724569 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 418542 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartVInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 20 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 14374 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 78665 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 93059 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 32229 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 32229 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 5 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 3569401 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 475046 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1074784 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 4644185 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| 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 | BERKELEY GEOCHRONOLOGY CENTER (BGC) IS DEDICATED TO ESTABLISHING THE HISTORY OF THE EARTH, ITS VARIOUS INHABITANTS, AND ITS INTERACTIONS WITH THE REST OF OUR SOLAR SYSTEM, THROUGHOUT THE 4.6 BILLION YEARS OF OUR PLANET'S EXISTENCE. THIS MISSION IS CENTERED ON DEVELOPMENT, REFINEMENT AND APPLICATION OF GEOLOGICAL DATING METHODS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 19278504 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 18983936 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 418542 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 418542 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 17778504 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 17483936 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 44 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 73406 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 170936 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 244386 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 9742 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 161581 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 171323 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 15226556 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 14491579 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 114 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 39730 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 171773 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 211617 |
| IRS990/OtherExpensesGrp/Desc | 0 | TELECOMMUNICATIONS |
| IRS990/OtherExpensesGrp/Desc | 1 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 3 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4895 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 7863 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 12707 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 129 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 17605 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 7992 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 666 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 231935 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 1002779 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1235380 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 56 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 19420 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 83967 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 103443 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 47 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 16429 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 71032 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 87508 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 1601128 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 1639541 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 56128 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 48806 |
| IRS990/PrincipalOfficerNm | 0 | PAUL RENNE |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | COLLABORATIVE RESEARCH - RESEARCH INITIATED BY SCIENTISTS AT OTHER INSTITUTIONS WHOSE STUDIES REQUIRE GEOCHRONOLOGICAL DATA ARE OFTEN UNDERTAKEN BY BGC SCIENTISTS ON A COLLABORATIVE BASIS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 724789 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | EDUCATIONAL OUTREACH - BGC CONDUCTS EDUCATIONAL OUTREACH WITH GRADUATE STUDENTS WHOSE RESEARCH INVOLVES GEOCHRONOLOGY, AND PROVIDES RESEARCH EXPERIENCE FOR UNDERGRADUATE STUDENTS. BGC SCIENTISTS SERVE AS RESEARCH ADVISORS TO GRADUATE STUDENTS AT UCB AND OTHER UNIVERSITIES BOTH NATIONALLY AND INTERNATIONALLY. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 38780 |
| IRS990/ProgSrvcAccomActy3Grp/GrantAmt | 0 | 59480 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 17538429 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 82558 |
| IRS990/PYInvestmentIncomeAmt | 0 | 29227 |
| IRS990/PYOtherExpensesAmt | 0 | 1013662 |
| IRS990/PYOtherRevenueAmt | 0 | 316307 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 14727029 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 2060714 |
| IRS990/PYTotalExpensesAmt | 0 | 3156934 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 17883963 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -294568 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 418542 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1974315 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1816544 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 2273798 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3038429 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 5472162 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1536465 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2622881 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 14943735 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 450771 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 345534 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 3340 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 160 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 145 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 799950 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 20250 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.38470 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.38960 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 6057018 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 8886717 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 2273798 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3038429 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 5472162 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1536465 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2622881 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 14943735 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 15743685 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 119250 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 119250 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 1000900 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 2907582 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 3908482 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 119250 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 3019137 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 73884 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 661819 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 735703 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 2351 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 14489228 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | EMPLOYEE ADVANCES |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | RIGHT-OF-USE ASSET - FINANCE LEASE |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 119250 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 2724569 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | BGC BELIEVES THAT IT HAS APPROPRIATE SUPPORT FOR ANY TAX POSITIONS TAKEN, AND AS SUCH, DOES NOT HAVE ANY UNCERTAIN TAX POSITIONS THAT ARE MATERIAL TO THE FINANCIAL STATEMENTS. BGC'S FEDERAL AND STATE INFORMATION RETURNS FOR THE YEARS 2021 THROUGH 2024 ARE SUBJECT TO EXAMINATION BY REGULATORY AGENCIES, GENERALLY FOR THREE YEARS AND FOUR YEARS AFTER THEY WERE FILED FOR FEDERAL AND STATE, RESPECTIVELY. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 1074784 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 14491579 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 3019137 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 2724569 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 2843819 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 3138387 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 1 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 0 | 59480 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/GrantTypeTxt | 0 | GRADUATE STUDENT SUPPORT |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/RecipientCnt | 0 | 3 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 0 |
| IRS990ScheduleJ/BoardOrCommitteeApprovalInd | 0 | X |
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