Civic Intelligence

The Hydrous

990 • Fiscal year 2024 • EIN 46-5112972

Jan 01, 2024 to Dec 31, 2024 • Filed on Sep 10, 2025

1160 Battery St Suite 100San Francisco, CA 94111

(415) 521-8272

Siviq Scores

Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.

Liabilities / Assets

56th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

2024 filings • 501(c)3 • <$500k nonprofits • Source year 2024

Liabilities / Revenue

57th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

2024 filings • 501(c)3 • <$500k nonprofits • Source year 2024

Net Margin

76th percentile

22%

Higher net margin than 76% of similar nonprofits.

2024 filings • 501(c)3 • <$500k nonprofits • Source year 2024

Top Officer Pay

97th percentile

$84,000

Higher top officer pay than 97% of similar nonprofits.

Top officer pay equals 35.3% of source-year revenue.

2024 filings • 501(c)3 • <$500k nonprofits • Source year 2024

Asset Growth

74th percentile

21%

Faster asset growth than 74% of similar nonprofits.

2024 filings • 501(c)3 • <$500k nonprofits • Annualized from 2023 to 2024

Revenue Growth

89th percentile

79%

Faster revenue growth than 89% of similar nonprofits.

2024 filings • 501(c)3 • <$500k nonprofits • Annualized from 2023 to 2024

Assets

Up

$134,958

Up $23,772 (+21%) from 2023

Net Assets

Up

$134,958

Up $53,447 (+66%) from 2023

Liabilities

Down

$0

Down $29,675 (-100%) from 2023

Revenue

Up

$238,045

Up $105,072 (+79%) from 2023

Expenses

Down

$184,598

Down $178,644 (-49%) from 2023

Net Income

Up

$53,447

Up $283,716 (+123%) from 2023

Historical Trend

Balance Sheet Trend

The highlighted filing sits inside the broader history for assets, liabilities, and net assets.

$800K$600K$400K$200K$0Assets 2014: $37,249Liabilities 2014: $02014Assets 2015: $18,739Liabilities 2015: $0Net Assets 2015: $18,7392015Assets 2016: $53,156Liabilities 2016: $23,050Net Assets 2016: $30,1062016Assets 2017: $56,564Liabilities 2017: $5,755Net Assets 2017: $50,8092017Assets 2018: $95,980Liabilities 2018: $0Net Assets 2018: $95,9802018Assets 2019: $65,253Liabilities 2019: $19,032Net Assets 2019: $46,2212019Assets 2020: $92,347Liabilities 2020: $24,906Net Assets 2020: $67,4412020Assets 2021: $793,404Liabilities 2021: $30,404Net Assets 2021: $763,0002021Assets 2022: $309,599Liabilities 2022: $318Net Assets 2022: $309,2812022Assets 2023: $111,186Liabilities 2023: $29,675Net Assets 2023: $81,5112023Assets 2024: $134,958Liabilities 2024: $0Net Assets 2024: $134,9582024

Highlighted filing

2024

Assets$134,958
Liabilities$0
Net Assets$134,958

Operations Trend

Revenue, expenses, and net income across loaded years, with this filing highlighted.

$1.5M$1.0M$500K$0-$500KRevenue 2014: $50,000Expenses 2014: $39,194Net Income 2014: $10,8062014Revenue 2015: $46,588Expenses 2015: $38,654Net Income 2015: $7,9342015Revenue 2016: $143,083Expenses 2016: $131,716Net Income 2016: $11,3672016Revenue 2017: $189,857Expenses 2017: $169,154Net Income 2017: $20,7032017Revenue 2018: $284,204Expenses 2018: $260,415Net Income 2018: $23,7892018Revenue 2019: $115,019Expenses 2019: $164,778Net Income 2019: -$49,7592019Revenue 2020: $180,968Expenses 2020: $126,370Net Income 2020: $54,5982020Revenue 2021: $1,052,631Expenses 2021: $357,072Net Income 2021: $695,5592021Revenue 2022: $90,414Expenses 2022: $544,133Net Income 2022: -$453,7192022Revenue 2023: $132,973Expenses 2023: $363,242Net Income 2023: -$230,2692023Revenue 2024: $238,045Expenses 2024: $184,598Net Income 2024: $53,4472024

Highlighted filing

2024

Revenue$238,045
Expenses$184,598
Net Income$53,447
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Sep 10, 2025
Return Version
2024v5.2
Gross Receipts
$238,045
Mission and Program Overview

Mission

To create "open access oceans" so that all people may explore, understand, and engage wth beautiful and threatened marine environments.

The hydrous is an education-centered nonprofit organization dedicated to translating scientific discovery in our ocean into public understanding. Our mission is to create "open access oceans" so that all people may explore, understand, and engage with beautiful and threatened marine invironments.

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$105,338$110,573▲ $5,235
Savings and Temporary Cash Investments-$20,263-
Land, Buildings, and Equipment, Net$5,848$4,122▼ $1,726
Total Assets$111,186$134,958▲ $23,772
Liabilities
Accounts Payable and Accrued Expenses$29,675--
Total Liabilities$29,675$0▼ $29,675
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$81,511$134,958▲ $53,447
Total Net Assets Fund Balance$81,511$134,958▲ $53,447
Total Liabilities and Net Assets / Fund Balance$111,186$134,958▲ $23,772

Asset Categories

AssetBook ValueDepreciationBasis
Equipment$4,122$43,105$47,227
Compensation and Service Providers

Employees

NameTitleFull / Part TimeBaseTotal
Dr Erika Woolsey PetersonCEOFT$84,000$84,000

Board Members and Trustees

NameTitle
Dr Kristina WoolseyBoard Chair
Eric RiesebergBoard Member
Sylvester Spencer-leeBoard Member
Wesley Della VollaSecretary
Andrea ContrerasTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$228,592
Program Service Revenue
$8,692
Investment Income
$116
Other Revenue
$645
All Other Contributions
$228,592
Change in Net Assets
$53,447
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$100,598
Salaries, Compensation, and Employee Benefits$84,000
Total Fundraising Expense$115
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Current Officers, Directors, Trustees, and Key Employees-$84,000-$84,000
Fees for Services Other$60,750$650-$61,400
Travel$11,384$92-$11,476
Fees for Services Accounting-$5,217-$5,217
Occupancy$2,244$548$7$2,799
Information Technology$46$1,984-$2,030
Office Expenses$1,971--$1,971
Depreciation Depletion-$1,726-$1,726
Other Expenses$105$634$60$739
Conferences and Meetings$511--$511
All Other Expenses$163$14$48$225
Advertising$121$9-$130
Total Functional Expenses$88,321$96,162$115$184,598
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
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
Backup withholding compliance
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
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
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 provided to the board for review before filing.

Form 990, Part VI, Section C, Line 19

Documents are available upon request.

Filing and Contact Details

Filer

Filer Name
The Hydrous
EIN
46-5112972
Phone
4155218272
Address
1160 BATTERY ST SUITE 100, SAN FRANCISCO, CA 94111

Signing Officer

Name
Erika Woolsey Peterson
Title
CEO
Phone
4155218272
Signed
2025-09-10
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Dr Erika Woolsey Peterso
Formed
2014
Legal Domicile
Hi
Voting Board Members
5
Independent Board Members
5
Employees
0
Volunteers
10

Preparer

Firm
Indinero
Address
440 N BARRANCA AVE 4637, COVINA, CA 91723
Preparer
Terri Regan CPA
Phone
8554634637
Supplemental Narrative

Additional Explanations

Form 990, Part IX, Line 11G

Contractors: program service expenses 60,750. Management and general expenses 650. Fundraising expenses 0. Total expenses 61,400.

Raw XML Appendix377 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/Desc0CONTENT CREATIONWE DESIGN DIGITAL AND PHYSICAL CURRICULA TO TEACH AUDIENCES OF ALL AGES ABOUT THE OCEAN. FOR INSTANCE, WE CREATED AN AWARD-WINNING OCEAN EDUCATION KIT CALLED "CORAL REEFS: A HYDROUS LEARNING EXPEDITION" THAT INCLUDES HANDS-ON LEARNING ACTIVITIES AND DIGITAL EXPERIENCES, DESIGNED FOR MIDDLE SCHOOL STUDENTS. ACCOMPLISHMENTS: WITH SUPPORT FROM NATIONAL GEOGRAPHIC AND PRIVATE DONORS, WE HAVE BEEN ABLE TO DISTRIBUTE NEARLY 500 KITS TO STUDENTS AND EDUCATORS IN 20 DIFFERENT U.S. STATES. WE ALSO HAVE CREATED MULTIPLE "VIRTUAL DIVE" EXPERIENCES USING VIRTUAL AND AUGMENTED REALITY (VR/AR) TECHNOLOGY THAT HAVE BEEN VIEWED MILLIONS OF TIMES THROUGH ONLINE PLATFORMS AND IN-PERSON EVENTS. THESE EDUCATIONAL "DIVES" INCLUDE IMMERSE, AR REEF, EXPLORE, AND EXPEDITION PALAU.
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IRS990/ProgSrvcAccomActy2Grp/Desc0RESEARCH THE HYDROUS CONDUCTS RESEARCH ON THE EFFECTIVENESS OF IMMERSIVE VIRTUAL REALITY FOR MARINE EDUCATION WITH RESEARCH PARTNERS LIKE THE STANFORD UNIVERSITY VIRTUAL HUMAN INTERACTION LAB, THE UNIVERSITY OF OREGON, AND THE UNIVERSITY OF GOTHENBURG AND FUNDERS LIKE THE NATIONAL SCIENCE FOUNDATION, NATIONAL GEOGRAPHIC, AND META.ACCOMPLISHMENTS: HAMILTON, J.F., KELLEY, B.Z., MONISMITH, S.G., KOSE, J.R. (2025) ON THE USE OF SIMPLIFIED GEOMETRIES TO REPRESENT TURBULENT FLOW OVER CORAL REEFS. JOURNAL OF FLUID MECHANICS: 1004, A11. MCGIVNEY, E., QUEIROZ A.C.M., MILLER, M.R., SUNNY LIU, BEAMS, B., HAN, E., WOOLSEY, E.S., FRAZIER, K., PETERSON, X., HANCOCK, J., BAILENSON, J. (2024) COMPLEXITY OF AGENCY IN VR LEARNING ENVIRONMENTS: EXPLORING ASSOCIATION WITH INTERACTIVITY, LEARNING OUTCOMES, AND AFFECT. IMMERSIVE LEARNING RESEARCH NETWORK 2024 PROCEEDINGS.
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IRS990/ProgSrvcAccomActy3Grp/Desc0PUBLIC ENGAGEMENTWE LEAD IN-PERSON LEARNING ACTIVITIES AND VIRTUAL DIVES BY SYNCHRONIZING VIRTUAL REALITY HEADSETS AT FORMAL AND INFORMAL LEARNING INSTITUTIONS LIKE SCHOOLS, UNIVERSITIES, LIBRARIES AND MUSEUMS. WE ALSO DELIVER TALKS AND WORKSHOPS AT EVENTS AND CONFERENCES, AS WELL AS PUBLISH OUR RESEARCH FINDINGS IN PEER-REVIEWED JOURNALS. ACCOMPLISHMENTS: SPEECHES AND EVENTS. THE HYDROUS DELIVERS IN-PERSON LEARNING ACTIVITIES, TALKS, WORKSHOPS, AND VIRTUAL DIVES AT FORMAL AND INFORMAL LEARNING INSTITUTIONS LIKE SCHOOLS, UNIVERSITIES, LIBRARIES, CONFERENCES AND MUSEUMS. ORPHEUS ISLAND: FIELDWORK WAS CONDUCTED AT ORPHEUS ISLAND ON THE GREAT BARRIER REEF IN AUSTRALIA TO COLLECT UNDERWATER FOOTAGE FOR HYDROUS EDUCATIONAL PROGRAMMING AS WELL AS FOR DR. WOOLSEYS TOUR WITH NATIONAL GEOGRAPHIC LIVE. FGCU: A SERIES OF WORKSHOPS AND PRESENTATIONS DELIVERED AT FLORIDA GULF COAST UNIVERSITYS THE WATER SCHOOL.
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IRS990/ReportProgramRelatedInvstInd00
IRS990/RevenueAmt03367
IRS990/SavingsAndTempCashInvstGrp/EOYAmt020263
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt0228592
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt0119610
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt048479
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt062474
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt0179463
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt0638618
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt0116
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt047
IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt0163
IRS990ScheduleA/PublicOrganization170Ind0X
IRS990ScheduleA/PublicSupportCY170Pct00.85970
IRS990ScheduleA/PublicSupportPY170Pct00.99990
IRS990ScheduleA/PublicSupportTotal170Amt0549170
IRS990ScheduleA/SubstantialContributorsTotAmt089448
IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind0X
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt0228592
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt0119610
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt048479
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt062474
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt0179463
IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt0638618
IRS990ScheduleA/TotalSupportAmt0638781
IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorNum0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine20RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt0RESTRICTED
IRS990/ScheduleBRequiredInd01
IRS990ScheduleD/EquipmentGrp/BookValueAmt04122
IRS990ScheduleD/EquipmentGrp/DepreciationAmt043105
IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt047227
IRS990ScheduleD/TotalBookValueLandBuildingsAmt04122
IRS990/ScheduleJRequiredInd00
IRS990/ScheduleORequiredInd01
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0THE FORM 990 IS PROVIDED TO THE BOARD FOR REVIEW BEFORE FILING.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1DOCUMENTS ARE AVAILABLE UPON REQUEST.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2CONTRACTORS: PROGRAM SERVICE EXPENSES 60,750. MANAGEMENT AND GENERAL EXPENSES 650. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 61,400.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0FORM 990, PART VI, SECTION B, LINE 11B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1FORM 990, PART VI, SECTION C, LINE 19
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2FORM 990, PART IX, LINE 11G
IRS990/SchoolOperatingInd00
IRS990/SignificantChangeInd00
IRS990/SignificantNewProgramSrvcInd00
IRS990/StatesWhereCopyOfReturnIsFldCd0CA
IRS990/SubjectToExcsTaxNetInvstIncInd00
IRS990/SubjectToProxyTaxInd00
IRS990/SubjToTaxRmnrtnExPrchtPymtInd00
IRS990/TaxablePartyNotificationInd00
IRS990/TaxExemptBondsInd00
IRS990/TerminateOperationsInd00
IRS990/TotalAssetsBOYAmt0111186
IRS990/TotalAssetsEOYAmt0134958
IRS990/TotalAssetsGrp/BOYAmt0111186
IRS990/TotalAssetsGrp/EOYAmt0134958
IRS990/TotalCompGreaterThan150KInd00
IRS990/TotalContributionsAmt0228592
IRS990/TotalEmployeeCnt00
IRS990/TotalFunctionalExpensesGrp/FundraisingAmt0115
IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt096162
IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt088321
IRS990/TotalFunctionalExpensesGrp/TotalAmt0184598
IRS990/TotalGrossUBIAmt00
IRS990/TotalLiabilitiesBOYAmt029675
IRS990/TotalLiabilitiesEOYAmt00
IRS990/TotalLiabilitiesGrp/BOYAmt029675
IRS990/TotalLiabilitiesGrp/EOYAmt00
IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt081511
IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt0134958
IRS990/TotalOtherCompensationAmt00
IRS990/TotalProgramServiceExpensesAmt088321
IRS990/TotalProgramServiceRevenueAmt08692
IRS990/TotalReportableCompFromOrgAmt084000
IRS990/TotalRevenueGrp/ExclusionAmt0116
IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt09337
IRS990/TotalRevenueGrp/TotalRevenueColumnAmt0238045
IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt00
IRS990/TotalVolunteersCnt010
IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt0111186
IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt0134958
IRS990/TotReportableCompRltdOrgAmt00
IRS990/TravelGrp/ManagementAndGeneralAmt092
IRS990/TravelGrp/ProgramServicesAmt011384
IRS990/TravelGrp/TotalAmt011476
IRS990/TrnsfrExmptNonChrtblRltdOrgInd00
IRS990/TypeOfOrganizationCorpInd0X
IRS990/UnrelatedBusIncmOverLimitInd00
IRS990/UponRequestInd0X
IRS990/USAddress/AddressLine1Txt01160 BATTERY ST SUITE 100
IRS990/USAddress/CityNm0SAN FRANCISCO
IRS990/USAddress/StateAbbreviationCd0CA
IRS990/USAddress/ZIPCd094111
IRS990/VotingMembersGoverningBodyCnt05
IRS990/VotingMembersIndependentCnt05
IRS990/WebsiteAddressTxt0HTTPS://THEHYDRO.US/
IRS990/WhistleblowerPolicyInd00
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd01
ReturnHeader/BusinessOfficerGrp/PersonNm0ERIKA WOOLSEY PETERSON
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0CEO
ReturnHeader/BusinessOfficerGrp/PhoneNum04155218272
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-09-10
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0THE HYDROUS
ReturnHeader/Filer/BusinessNameControlTxt0THEH
ReturnHeader/Filer/EIN0465112972
ReturnHeader/Filer/PhoneNum04155218272
ReturnHeader/Filer/USAddress/AddressLine1Txt01160 BATTERY ST SUITE 100
ReturnHeader/Filer/USAddress/CityNm0SAN FRANCISCO
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd094111
ReturnHeader/IRSResponsiblePrtyInfoCurrInd01
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0270162544
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0INDINERO
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0440 N BARRANCA AVE 4637
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0COVINA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0CA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd091723
ReturnHeader/PreparerPersonGrp/PhoneNum08554634637
ReturnHeader/PreparerPersonGrp/PreparationDt02025-08-28
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0TERRI REGAN CPA
ReturnHeader/ReturnTs02025-09-10T05:25:14-05:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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