Nonprofit · EIN 87-0495235
SEACOLOGY
Tax-exempt · BERKELEY, CA 94707
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $2,769,333 | $3,577,746 | -$808,413 | $12,038,045 | $303,499 | $11,734,546 |
| December 31, 2024 | 990 | $2,852,831 | $3,140,957 | -$288,126 | $12,559,203 | $337,281 | $12,221,922 |
| December 31, 2023 | 990 | $4,599,548 | $3,159,291 | $1,440,257 | $12,699,669 | $342,637 | $12,357,032 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,850,212
- Program service revenue
- $24,000
- Investment income
- $905,948
- Net gain from sales of assets
- $527,612
- Net income from fundraising events
- -$10,827
- Other revenue
- -$10,827
Expenses
- Grants and similar amounts paid
- $1,347,775
- Compensation of officers, directors and key employees
- $385,296
- Other salaries and wages
- $664,466
- Salaries, compensation and benefits (total)
- $1,413,156
- Professional fundraising fees
- $0
- Legal fees
- $1,000
- Accounting fees
- $44,684
- Occupancy
- $44,940
- Travel
- $102,102
- Program services (functional)
- $2,809,377
- Management and general (functional)
- $303,143
- Fundraising (functional)
- $465,226
Balance sheet and other
- Total assets, start of year
- $12,559,203
- Total assets, end of year
- $12,038,045
- Total liabilities, end of year
- $303,499
- Net assets, end of year
- $11,734,546
- Publicly traded securities
- $8,256,260
- Net assets without donor restrictions
- $9,533,702
- Net assets with donor restrictions
- $2,200,844
- Gross receipts
- $3,162,365
- Employees
- 9
- Volunteers
- 14
- Year formed
- 1991
- State of legal domicile
- CA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DUANE SILVERSTEIN | Executive Dir. Officer | 40 | $263,946 | $53,834 |
| KAREN PETERSON | SR MGR SPEC. INIT. | 40 | $117,876 | $35,606 |
| ERIN COYNE | INST. GIVING OFF. | 40 | $110,601 | $40,397 |
| KEVIN CLAASSEN | ACCT. MGR. Officer | 40 | $121,350 | $21,045 |
| MARY RANDOLPH | PROGRAM MANAGER | 40 | $103,785 | $36,859 |
| PAUL COX | Chairman Trustee or director, Officer | 3 | $0 | $0 |
| KIMBERLY MYERS HEWLETT | Vice President Trustee or director, Officer | 1 | $0 | $0 |
| SANDIE TILLOTSON | Vice President Trustee or director, Officer | 1 | $0 | $0 |
| DOUGLAS HERST | President Trustee or director, Officer | 1 | $0 | $0 |
| KENNETH A MURDOCK | Vice Chair Trustee or director, Officer | 1 | $0 | $0 |
| RACHEL DIBNER | Director Trustee or director | 1 | $0 | $0 |
| SCOTT HALSTED | Director Trustee or director | 1 | $0 | $0 |
| KAREN YARKIN | Director Trustee or director | 1 | $0 | $0 |
| MICHAEL WARD | Director Trustee or director | 1 | $0 | $0 |
| MICHAEL STAFFIERI | Director Trustee or director | 2 | $0 | $0 |
4 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KRISTIN REED | Vice President Trustee or director, Officer | 2 | $0 |
| SCOTT WILSON | Treasurer Trustee or director, Officer | 2 | $0 |
| JAKE WALKER | Director Trustee or director | 2 | $0 |
| PETER READ | Director Trustee or director | 1 | $0 |
990 for the year ended December 31, 2024: 19 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DUANE SILVERSTEIN | Executive Dir. Officer | 40 | $256,258 | $72,485 |
| KAREN PETERSON | SR MGR SPEC. INIT. | 40 | $113,342 | $41,466 |
| ERIN COYNE | INST. GIVING OFF. | 40 | $106,347 | $39,350 |
| KEVIN CLAASSEN | ACCT. MGR. Officer | 40 | $116,119 | $21,391 |
| PAUL COX | Chairman Trustee or director, Officer | 3 | $0 | $0 |
| KIMBERLY MYERS HEWLETT | Vice President Trustee or director, Officer | 1 | $0 | $0 |
| SANDIE TILLOTSON | Vice President Trustee or director, Officer | 1 | $0 | $0 |
| DOUGLAS HERST | President Trustee or director, Officer | 1 | $0 | $0 |
| KEN MURDOCK | Vice Chair Trustee or director, Officer | 1 | $0 | $0 |
| RACHEL DIBNER | Director Trustee or director | 1 | $0 | $0 |
| SCOTT HALSTED | Director Trustee or director | 1 | $0 | $0 |
| KAREN YARKIN | Director Trustee or director | 1 | $0 | $0 |
| DAVID HOLLAND | Director Trustee or director | 1 | $0 | $0 |
| MICHAEL WARD | Director Trustee or director | 1 | $0 | $0 |
| MICHAEL STAFFIERI | Director Trustee or director | 2 | $0 | $0 |
| KRISTIN REED | Vice President Trustee or director, Officer | 2 | $0 | $0 |
| SCOTT WILSON | Treasurer Trustee or director, Officer | 2 | $0 | $0 |
| JAKE WALKER | Director Trustee or director | 2 | $0 | $0 |
| PETER READ | Director Trustee or director | 1 | $0 | $0 |
990 for the year ended December 31, 2023: 20 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DUANE SILVERSTEIN | Executive Dir. Officer | 40 | $246,000 | $54,695 |
| KAREN PETERSON | SR MGR SPEC. INIT. | 40 | $108,461 | $37,642 |
| ERIN COYNE | INST. GIVING OFF. | 40 | $101,767 | $34,392 |
| KEVIN CLAASSEN | ACCT. MGR. Officer | 40 | $110,450 | $18,460 |
| PAUL COX | Chairman Trustee or director, Officer | 3 | $0 | $0 |
| KIMBERLY MYERS HEWLETT | Vice President Trustee or director, Officer | 1 | $0 | $0 |
| SANDIE TILLOTSON | Vice President Trustee or director, Officer | 1 | $0 | $0 |
| DOUGLAS HERST | President Trustee or director, Officer | 1 | $0 | $0 |
| KEN MURDOCK | Vice Chair Trustee or director, Officer | 1 | $0 | $0 |
| RACHEL DIBNER | Director Trustee or director | 1 | $0 | $0 |
| SCOTT HALSTED | Director Trustee or director | 1 | $0 | $0 |
| SHANNA JAMIESON | Director Trustee or director | 1 | $0 | $0 |
| MASAYUKI KISHIMOTO | Director Trustee or director | 1 | $0 | $0 |
| DAVID HOLLAND | Director Trustee or director | 1 | $0 | $0 |
| MICHAEL WARD | Director Trustee or director | 1 | $0 | $0 |
| MICHAEL STAFFIERI | Director Trustee or director | 2 | $0 | $0 |
| KRISTIN REED | Vice President Trustee or director, Officer | 2 | $0 | $0 |
| SCOTT WILSON | Treasurer Trustee or director, Officer | 1 | $0 | $0 |
| JAKE WALKER | Director Trustee or director | 2 | $0 | $0 |
| PETER READ | Director Trustee or director | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 1623 SOLANO AVE, BERKELEY, CA 94707-2108
- Principal officer (990 for 2025)
- DUANE SILVERSTEIN, 1623 SOLANO AVENUE, BERKELEY, CA 94707
- Signed the 990
- DUANE SILVERSTEIN, Executive Dir.
- Phone
- (510) 559-3505
- Website
- WWW.SEACOLOGY.ORG
- Return prepared by
- DORAN & ASSOCIATES
California records
California keeps its own records of charities and corporations. Search them by EIN 87-0495235 or by the name SEACOLOGY.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
Seacology protects the threatened species and habitats of the worlds islands by working directly with local people to both conserve their natural resources and improve their quality of life.
Program accomplishments
- IN 2025, SEACOLOGY STARTED 33 NEW PROJECTS ON ISLANDS AROUND THE WORLD. SEACOLOGY GRANTS GO TO COMMUNITIES THAT ARE WORKING TO PROTECT THEIR MARINE OR TERRESTRIAL ENVIRONMENTS AND NEED SOME KIND OF COMMUNITY BENEFIT, SUCH AS A SCHOOL OR COMMUNITY CENTER. SEACOLOGY'S 2025 PROJECTS FUNDED A VARIETY OF COMMUNITY BENEFITS IN RETURN FOR VARIOUS PROTECTIONS, AS DESCRIBED ON SCHEDULE O.Expenses $2,768,445 · grants $1,337,775 · revenue $24,000
- THE ANNUAL SEACOLOGY PRIZE RECOGNIZES AN INDIGENOUS ISLANDER FOR EXCEPTIONAL ACHIEVEMENT IN PRESERVING THE ENVIRONMENT AND CULTURE OF HIS OR HER HOME COUNTRY. THE SEACOLOGY BOARD OF DIRECTORS CHOSE CYNTHIA ONG AS THE 2025 PRIZE RECIPIENT. THIS DEDICATED ENVIRONMENTAL LEADER HAS WORKED TIRELESSLY TO HALT ECOLOGICAL DAMAGES ON BORNEO, AS WELL AS PROMOTING POSITIVE, SUSTAINABLE POLICIES AND ACTIONS TO HELP HER ISLAND AND ITS PEOPLE THRIVE.ADDITIONAL DESCRIPTION ON SCHEDULE O.Expenses $40,932 · grants $10,000
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 87-0495235
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1992
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $12,038,045
- Income (IRS master file)
- $3,162,365
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $2,769,333 | $3,577,746 | $12,038,045 | XML |
| 990 | December 2024 | $2,852,831 | $3,140,957 | $12,559,203 | XML |
| 990 | December 2023 | $4,599,548 | $3,159,291 | $12,699,669 | XML |
| 990 | December 2022 | $3,256,392 | $2,820,441 | $10,148,588 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 87-0495235).
Questions about SEACOLOGY
- What is the EIN of SEACOLOGY?
- The employer identification number (EIN) of SEACOLOGY is 87-0495235.
- Is SEACOLOGY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1992.
- Are donations to SEACOLOGY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SEACOLOGY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of SEACOLOGY due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SEACOLOGY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of SEACOLOGY?
- The 990 for the year ended December 31, 2025 names DUANE SILVERSTEIN.
- Who are the officers and directors of SEACOLOGY?
- The 990 for the year ended December 31, 2025 lists 19 people; 5 received compensation from the organization, the highest $263,946 (DUANE SILVERSTEIN, Executive Dir.).
- How much revenue does SEACOLOGY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $2,769,333, expenses of $3,577,746 and total assets of $12,038,045 at year end.
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