Civic Intelligence

Reef Guardians Hawaii

EIN 47-3975420 • 501(c)3 • Princeville, HI

Profile

Reef Guardians' mission is reef preservation through research, restoration, and education.

3737 Kaweonui RoadPrinceville, HI 96722

reefguardians.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

60th percentile

0.00x

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

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

Liabilities / Revenue

62nd percentile

0.00x

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

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

Net Margin

82nd percentile

31%

Higher net margin than 82% of similar nonprofits.

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

Top Officer Pay

96th percentile

$71,417

Higher top officer pay than 96% of similar nonprofits.

Top officer pay equals 35.6% of source-year revenue.

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

Asset Growth

86th percentile

49%

Faster asset growth than 86% of similar nonprofits.

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

Revenue Growth

85th percentile

55%

Faster revenue growth than 85% of similar nonprofits.

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

Balance Sheet
Liabilities / Assets60th percentile

Assets

Up

$189,654

Up $62,789 (+49%) from 2023

Liabilities

Flat

$0

Flat from 2023

Net Assets

Up

$189,654

Up $62,789 (+49%) from 2023

Operations
Liabilities / Revenue62nd percentileNet Margin82nd percentile

Revenue

Up

$200,868

Up $71,501 (+55%) from 2023

Expenses

Up

$138,079

Up $17,562 (+15%) from 2023

Net Income

Up

$62,789

Up $53,939 (+609%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth86th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$200K$150K$100K$50K$0Assets 2019: $52,900Liabilities 2019: $0Net Assets 2019: $52,9002019Assets 2020: $87,360Liabilities 2020: $0Net Assets 2020: $87,3602020Assets 2021: $137,302Liabilities 2021: $2,691Net Assets 2021: $134,6112021Assets 2022: $118,015Liabilities 2022: $0Net Assets 2022: $118,0152022Assets 2023: $126,865Liabilities 2023: $0Net Assets 2023: $126,8652023Assets 2024: $189,654Liabilities 2024: $0Net Assets 2024: $189,6542024

Highlighted filing

2024

Assets$189,654
Liabilities$0
Net Assets$189,654
Open 2024 Filing

Operations Trend

Revenue Growth85th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$300K$200K$100K$0-$100KRevenue 2019: $72,613Expenses 2019: $37,545Net Income 2019: $35,0682019Revenue 2020: $204,128Expenses 2020: $169,668Net Income 2020: $34,4602020Revenue 2021: $182,706Expenses 2021: $135,455Net Income 2021: $47,2512021Revenue 2022: $109,069Expenses 2022: $125,665Net Income 2022: -$16,5962022Revenue 2023: $129,367Expenses 2023: $120,517Net Income 2023: $8,8502023Revenue 2024: $200,868Expenses 2024: $138,079Net Income 2024: $62,7892024

Highlighted filing

2024

Revenue$200,868
Expenses$138,079
Net Income$62,789
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$189,654
Liabilities
$0
Net assets
$189,654
Revenue
$200,868
Expenses
$138,079
Net income
$62,789
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$1.90$0.00$1.90$2.01$1.38$0.63
2023Detailed filing. Detailed filing data is available for this year.$1.27$0.00$1.27$1.29$1.21$0.09
2022Detailed filing. Detailed filing data is available for this year.$1.18$0.00$1.18$1.09$1.26$0.17
2021Detailed filing. Detailed filing data is available for this year.$1.37$0.03$1.35$1.83$1.35$0.47
2020Detailed filing. Detailed filing data is available for this year.$0.87$0.00$0.87$2.04$1.70$0.34
2019Detailed filing. Detailed filing data is available for this year.$0.53$0.00$0.53$0.73$0.38$0.35
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Nov 12, 2025
Return Version
2024v5.2
Gross Receipts
$200,868
Mission and Program Overview

Mission

To protect the coral reefs through research and education.

Reef Guardians' mission is reef preservation through research, restoration, and education. We raise awareness of the value of the marine environment, create environmental solutions, facilitate restoration, and educate tomorrows advocates and stewards.

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$126,865$189,654▲ $62,789
Savings and Temporary Cash Investments-$0-
Accounts Receivable-$0-
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Investments in Publicly Traded Securities-$0-
Land, Buildings, and Equipment, Net-$0-
Intangible Assets-$0-
Inventories for Sale or Use-$0-
Prepaid Expenses and Deferred Charges-$0-
Total Assets$126,865$189,654▲ $62,789
Other Assets Total-$0-
Liabilities
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$83,027$107,313▲ $24,286
Net Assets With Donor Restrictions$43,838$82,341▲ $38,503
Total Net Assets Fund Balance$126,865$189,654▲ $62,789
Total Liabilities and Net Assets / Fund Balance$126,865$189,654▲ $62,789

Asset Categories

AssetBook ValueDepreciationBasis
Equipment-$11,380$11,380
Compensation and Service Providers
Top Officer Pay96th percentile

Employees

NameTitleFull / Part TimeBaseTotal
Robin MazorExec Direct/SecFT$71,417$71,417

Board Members and Trustees

NameTitle
Thomas WoodsPresident
Harry RabinVice President
Jan HashizumeTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$169,295
Program Service Revenue
$31,573
Investment Income
$0
Other Revenue
$0
All Other Contributions
$169,295
Change in Net Assets
$62,789
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Salaries, Compensation, and Employee Benefits$96,794
Other Expenses$41,285
Total Fundraising Expense$12,680
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Current Officers, Directors, Trustees, and Key Employees$57,133$7,142$7,142$71,417
Other Salaries and Wages$16,949$100$99$17,148
Fees for Services Other$12,365$393$392$13,150
Payroll Taxes$6,848$690$691$8,229
Insurance$6,591$566$566$7,723
All Other Expenses$2,251$1,783$1,659$5,693
Other Expenses$1,032$238$237$1,507
Travel$742--$742
Advertising$471--$471
Office Expenses-$121$121$242
Conferences and Meetings$208--$208
Total Functional Expenses$112,592$12,807$12,680$138,079
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
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
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
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 board of directors review and approve the form 990 prior to filing.”

Form 990, Part VI, Section B, Line 12C

“Members of the board of directors sign a conflict of interest policy statement on an annual basis. Members of the board of directors have a continuing responsibility to promptly disclose to the organization the existence of any additional affiliations as they are undertaken. If any conflicts of interest exist, the board members will discuss the next steps and document how to rectifythe situation.”

Form 990, Part VI, Section B, Line 15A

“The executive committee shall annually review the compensation of the executive director. The executive committee shall gather recent data as to comparable compensation for similarly qualified persons in functionally comparable positions at similarly situated organizations. Upon review of all pertinent data, the members of the executive committee shall determine and approve the compensation of the executive director. Compensation decisions are recorded and maintained in the organization's records.”

Form 990, Part VI, Section B, Line 15B

“The executive committee and executive director shall annually review the compensation of other officers or key employees. They shall determine and approve the compensation of the other officers or key employees. Compensation decisions are recorded and maintained in the organization's records.”

Form 990, Part VI, Section C, Line 19

“Documents are kept at our organization's office and are available upon request.”

Filing and Contact Details

Filer

Filer Name
Reef Guardians Hawaii
EIN
47-3975420
Phone
8086510286
Address
3737 KAWEONUI ROAD, PRINCEVILLE, HI 96722

Signing Officer

Name
Robin Mazor
Title
Exec Director/Sec
Signed
2025-11-12
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Thomas Woods
Formed
2015
Legal Domicile
Hi
Voting Board Members
4
Independent Board Members
0
Employees
5
Volunteers
40

Preparer

Firm
Jan Hashizume CPA
Address
PO Box 1005, Lihue, HI 96766
Preparer
Jan Hashizume
Phone
8086526793
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IRS990/Desc0EDUCATION - REEF GUARDIANS EDUCATES THE COMMUNITY AND BUILDS AWARENESS ABOUT CORAL REEF THREATS AND THE IMPORTANCE OF PROTECTING THE REEF, WETLANDS AND NEARSHORE ENVIRONMENTS. REEF CAMP, REEF GUARDIANS UNIQUE YOUTH ENVIRONMENTAL EDUCATION PROGRAM, OPERATES SCHOOL FIELD STUDY AND SCHOOL BREAK PROGRAMS. SERVING OVER 300 CHILDREN AGES 8-13 IN 2024, THE WEEKLY CAMPS PROVIDED INSTRUCTION IN SCIENCE, ARTS, HAWAIIAN CULTURAL KNOWLEDGE AND WISDOM, AND DIRECT LEARNING EXPERIENCES IN THE OCEAN ENVIRONMENT. REEF GUARDIANS HAWAII DEVELOPED AND IS DISTRIBUTING THE "HAWAII SEALIFE" APP, A FREE IOS/ANDROID TOOL DESIGNED FOR CHILDREN AND FAMILIES TO RAISE ENVIRONMENTAL AWARENESS AND PROMOTE RESPECTFUL, PROTECTIVE INTERACTIONS WITH HAWAIIS SHORELINES AND REEFS. THIS ANIMAL IDENTIFICATION APP OFFERS ENGAGING EDUCATIONAL CONTENT TO HELP USERS TO APPRECIATE AND SAFEGUARD THE NATURAL ENVIRONMENT.REEF GUARDIANS LAUNCHED AN EXTENSIVE ENVIRONMENTAL EDUCATION INITIATIVE IN 2024 CALLED THE "KE KULA KAI ONLINE SEA SCHOOL." THIS PROGRAM BUILDS ON OUR REEF CAMP CURRICULUM, COVERING 15 KEY TOPICS TO DEEPEN UNDERSTANDING OF OCEAN ECOLOGY AND THE HAWAIIAN ISLANDS. EACH TOPIC COMBINES OCEAN SCIENCE, CONSERVATION, AND HAWAIIAN CULTURAL KNOWLEDGE TO FOSTER ENVIRONMENTAL AWARENESS AND ENCOURAGE MEANINGFUL CONNECTIONS TO PLACE, AS AN EXTENTION OF OUR REEF CAMP AND HAWAII SEALIFE APP.THROUGH OUR COMMUNITY/GOVERNMENT PARTNERSHIP WITH THE CALIFORNIA DEPT. OF FISH AND WILDLIFE, REEF GUARDIANS PROVIDED AND INSTALLED EDUCATIONAL SIGNAGE AT HARBORS AND BEACHES, PROTECTING SHARKS IN THEIR NATURAL NEAR-SHORE FEEDING AREAS. REEF GUARDIANS IS REPLACING AND INSTALLING NEW SIGNS WHERE NEEDED. REEF GUARDIANS HAWAII PUBLISHED A COMPREHENSIVE STUDY ON LAND-BASED POLLUTION IMPACTING KAUA'I'S ?ANINI (WANINI) LAGOON. THIS REPORT, ALONG WITH ACTION STEPS TAKEN, WAS MADE AVAILABLE TO THE COMMUNITY, GOVERNMENT, AND NON-PROFIT AGENCIES THROUGH PUBLIC EVENTS AND FOR DOWNLOAD ON THE REEF GUARDIANS HAWAI'I WEBSITE. ADULT EDUCATIONAL EVENTS WERE HELD ACROSS KAUA'I AND IN SANTA BARBARA BY REEF GUARDIANS, WITH PARTICIPATION FROM CORAL AND SHARK EXPERTS, TO INCREASE PUBLIC AWARENESS AND PROMOTE ENVIRONMENTALLY PROTECTIVE ACTIONS.
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IRS990/PrincipalOfficerNm0THOMAS WOODS
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IRS990/ProgramServiceRevenueGrp/Desc0CORAL REEF KIDS CAMP
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IRS990/ProgSrvcAccomActy2Grp/Desc0RESEARCH AND MONITORING:- FOUR AREAS OF RESEARCH AND MONITORING CONDUCTED DURING THIS YEAR: STUDY OF LAND-BASED OCEAN POLLUTION ON KAUA?I FOCUSED ON WATER QUALITY IN ANINI LAGOON, WAILE?IA STREAM (PRINCEVILLE), AND MOLOA?A BAY. IN 2023, REEF GUARDIANS HAWAII PUBLISHED AN EXTENSIVE REPORT WITH RECOMMENDED ACTIONS. IN 2024, WE INITITED A COLLABORATIVE COMMUNITY-BASED WATER QUALITY TESTING PROGRAM TO CONTINUE RESEARCH AND INFORM REMEDIATION AND RESTORATION.OUR MONITORING OF JUVENILE WHITE SHARKS IN CALIFORNIA LED TO AN EXTENDED COMMUNITY/GOVERNMENT PARTNERSHIP PROTECTING SHARKS IN THEIR NATURAL NEAR-SHORE FEEDING AREAS. OUR DRONE MONITORING OF LEAKING OFF-SHORE OIL WELLS IN CALIFORNIA CONTRIBUTED TO A PARTNERSHIP PLANNING STUDY WITH A MULTI-AGENCY TEAM FUNDED TO ADDRESS THE LEAKING OIL WELL HEADS IN THE SANTA BARBARA AREA. OUR MONITORING OF KAUA?I'S OCEAN REEFS ASSISTED THE HAWAII STATE DIVISION OF AQUATIC RESOURCES IN REMOVING NON-NATIVE SPECIES IDENTIFIED AS POTENTIALLY NEWLY INTRODUCED INVASIVE SPECIES OF HIGH CONCERN.
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0THE BOARD OF DIRECTORS REVIEW AND APPROVE THE FORM 990 PRIOR TO FILING.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1MEMBERS OF THE BOARD OF DIRECTORS SIGN A CONFLICT OF INTEREST POLICY STATEMENT ON AN ANNUAL BASIS. MEMBERS OF THE BOARD OF DIRECTORS HAVE A CONTINUING RESPONSIBILITY TO PROMPTLY DISCLOSE TO THE ORGANIZATION THE EXISTENCE OF ANY ADDITIONAL AFFILIATIONS AS THEY ARE UNDERTAKEN. IF ANY CONFLICTS OF INTEREST EXIST, THE BOARD MEMBERS WILL DISCUSS THE NEXT STEPS AND DOCUMENT HOW TO RECTIFYTHE SITUATION.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2THE EXECUTIVE COMMITTEE SHALL ANNUALLY REVIEW THE COMPENSATION OF THE EXECUTIVE DIRECTOR. THE EXECUTIVE COMMITTEE SHALL GATHER RECENT DATA AS TO COMPARABLE COMPENSATION FOR SIMILARLY QUALIFIED PERSONS IN FUNCTIONALLY COMPARABLE POSITIONS AT SIMILARLY SITUATED ORGANIZATIONS. UPON REVIEW OF ALL PERTINENT DATA, THE MEMBERS OF THE EXECUTIVE COMMITTEE SHALL DETERMINE AND APPROVE THE COMPENSATION OF THE EXECUTIVE DIRECTOR. COMPENSATION DECISIONS ARE RECORDED AND MAINTAINED IN THE ORGANIZATION'S RECORDS.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt3THE EXECUTIVE COMMITTEE AND EXECUTIVE DIRECTOR SHALL ANNUALLY REVIEW THE COMPENSATION OF OTHER OFFICERS OR KEY EMPLOYEES. THEY SHALL DETERMINE AND APPROVE THE COMPENSATION OF THE OTHER OFFICERS OR KEY EMPLOYEES. COMPENSATION DECISIONS ARE RECORDED AND MAINTAINED IN THE ORGANIZATION'S RECORDS.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt4Documents are kept at our organization's office and are available upon request.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990, Part VI, Section B, Line 11b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990, Part VI, Section B, Line 12c
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Form 990, Part VI, Section B, Line 15a
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3Form 990, Part VI, Section B, Line 15b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc4Form 990, Part VI, Section C, Line 19
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IRS990/WebsiteAddressTxt0reefguardians.org
IRS990/WhistleblowerPolicyInd0true
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd0true
ReturnHeader/BusinessOfficerGrp/PersonNm0ROBIN MAZOR
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Exec Director/Sec
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-11-12
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0REEF GUARDIANS HAWAII
ReturnHeader/Filer/BusinessNameControlTxt0REEF
ReturnHeader/Filer/EIN0473975420
ReturnHeader/Filer/PhoneNum08086510286
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ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0JAN HASHIZUME CPA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0PO Box 1005
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Lihue
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0HI
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd096766
ReturnHeader/PreparerPersonGrp/PhoneNum08086526793
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0Jan Hashizume
ReturnHeader/PreparerPersonGrp/SelfEmployedInd0X
ReturnHeader/ReturnTs02025-11-12T23:52:45-08:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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