Nonprofit · EIN 94-2951373
SAN FRANCISCO ESTUARY INSTITUTE
Tax-exempt · RICHMOND, CA 94804
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $19,594,340 | $19,110,723 | $483,617 | $18,188,462 | $11,791,585 | $6,396,877 |
| June 30, 2024 | 990 | $15,591,047 | $15,459,096 | $131,951 | $18,144,200 | $12,322,632 | $5,821,568 |
| June 30, 2023 | 990 | $13,822,849 | $13,853,965 | -$31,116 | $18,506,435 | $12,840,980 | $5,665,455 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $134,388
- Program service revenue
- $19,378,788
- Investment income
- $66,026
- Net rental income
- $8,737
- Other revenue
- $15,138
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $1,022,916
- Other salaries and wages
- $8,600,077
- Salaries, compensation and benefits (total)
- $11,686,052
- Professional fundraising fees
- $0
- Legal fees
- $56,218
- Accounting fees
- $29,273
- Occupancy
- $416,032
- Travel
- $79,897
- Depreciation
- $10,320
- Program services (functional)
- $15,687,567
- Management and general (functional)
- $3,423,156
Balance sheet and other
- Total assets, start of year
- $18,144,200
- Total assets, end of year
- $18,188,462
- Total liabilities, end of year
- $11,791,585
- Net assets, end of year
- $6,396,877
- Land, buildings and equipment
- $42,588
- Publicly traded securities
- $12,538,675
- Net assets without donor restrictions
- $6,373,527
- Net assets with donor restrictions
- $23,350
- Gross receipts
- $19,594,340
- Employees
- 99
- Volunteers
- 15
- Year formed
- 1983
- 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 June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Warner Chabot | Executive Director Officer | 40 | $182,526 |
| Karen Verpeet | Program Managing Dir Key employee | 40 | $176,504 |
| David Senn | Program Director Key employee | 40 | $170,149 |
| Jay Davis | Program Director Key employee | 40 | $169,163 |
| Anthony Hale | Program Director Key employee | 40 | $167,642 |
| Jennifer Trudeau | Program Director Key employee | 40 | $156,932 |
| Melissa Foley | Program Director Highest-paid employee | 40 | $147,069 |
| Scott Dusterhoff | Porgram Managing Director Highest-paid employee | 40 | $139,842 |
| Cristina Grosso | Porgram Managing Director Highest-paid employee | 40 | $132,884 |
| William Featherston | Sr. System Administrator Highest-paid employee | 40 | $128,845 |
| Donald Yee | Sr. Scientist Highest-paid employee | 40 | $128,022 |
| Ann Hayden | Chair - SFEI Trustee or director, Officer | 0 | $0 |
| Skyli Mcafee | Vice Chair - SFEI Trustee or director, Officer | 0 | $0 |
| Amber Mace | Vice Chair - ASC Trustee or director, Officer | 0 | $0 |
| Jessica Law | Secretary Trustee or director, Officer | 0 | $0 |
11 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Lorien Fono | Treasurer Trustee or director, Officer | 0 | $0 |
| Carter Brown | Member Trustee or director | 0 | $0 |
| Phil Crader | Member Trustee or director | 0 | $0 |
| Xavier Fernandez | Member Trustee or director | 0 | $0 |
| Adam Laputz | Member Trustee or director | 0 | $0 |
| James McGrath | Member Trustee or director | 0 | $0 |
| Amit Mutsuddy | Member Trustee or director | 0 | $0 |
| William Peterson | Member Trustee or director | 0 | $0 |
| Emma Russell | Member Trustee or director | 0 | $0 |
| Lori Schectel | Member Trustee or director | 0 | $0 |
| Luisa Valiela | Member Trustee or director | 0 | $0 |
990 for the year ended June 30, 2024: 24 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Warner Chabot | Executive Director Officer | 40 | $168,813 |
| David Senn | Program Director/Manager Key employee | 40 | $153,413 |
| Antholy Hale | Program Director/Manager Key employee | 40 | $150,431 |
| Karen Verpeet | Program Managing Director Highest-paid employee | 40 | $147,904 |
| Jennifer Trudeau | Program Director/Manager Highest-paid employee | 40 | $143,036 |
| Jay Davis | Program Director/Manager Highest-paid employee | 40 | $137,578 |
| Melissa Foley | Program Science Director Highest-paid employee | 40 | $128,325 |
| Ann Hayden | Chair Trustee or director, Officer | 1 | $0 |
| Skyli Mcafee | Vice Chair - SFEI Trustee or director, Officer | 1 | $0 |
| Thomas Mumley | Secretary Trustee or director, Officer | 1 | $0 |
| Lorien Fono | Treasurer Trustee or director, Officer | 1 | $0 |
| Carter Brown | Member Trustee or director | 1 | $0 |
| Phil Crader | Member Trustee or director | 1 | $0 |
| Adam Laputz | Member Trustee or director | 1 | $0 |
| Jessica Law | Member Trustee or director | 1 | $0 |
| Amber Mace | Member Trustee or director | 1 | $0 |
| James McGrath | Member Trustee or director | 1 | $0 |
| Amit Mutsuddy | Member Trustee or director | 1 | $0 |
| Adam Olivieri | Member Trustee or director | 1 | $0 |
| Barbara Salzman | Member Trustee or director | 1 | $0 |
| Lori Schectel | Member Trustee or director | 1 | $0 |
| Dave Tucker | Member Trustee or director | 1 | $0 |
| Luisa Valiela | Member Trustee or director | 1 | $0 |
| Karen Mogus | Member (JUL-JAN) Trustee or director | 1 | $0 |
990 for the year ended June 30, 2023: 21 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Warner Chabot | Executive Dir. Officer | 40 | $188,828 |
| David Senn | Program Dir/Mgr | 40 | $149,066 |
| Anthony Hale | Program Dir/Mgr | 40 | $142,332 |
| Jay Davis | Sr. Scientist/Mngr | 40 | $136,013 |
| Jennifer Trudeau | Managing Dir | 40 | $128,028 |
| Amber Mace | Director Trustee or director | 1 | $0 |
| Ann Hayden | Chairman Trustee or director, Officer | 1 | $0 |
| Amit Mudsuddy | Director Trustee or director | 1 | $0 |
| Skyli McAfee | Vice Chair Trustee or director, Officer | 1 | $0 |
| Lorien Fono | Treasurer Trustee or director, Officer | 1 | $0 |
| Carter Brown | Director Trustee or director | 1 | $0 |
| James McGrath | Director Trustee or director | 1 | $0 |
| Lori Schectel | Director Trustee or director | 1 | $0 |
| Adam Olivieri | Director Trustee or director | 1 | $0 |
| Luisa Valiela | Director Trustee or director | 0 | $0 |
| Barbara Salzman | Director Trustee or director | 1 | $0 |
| Jessica Law | Director Trustee or director | 1 | $0 |
| Dave Tucker | Director Trustee or director | 1 | $0 |
| Thomas Mumley | Secretary Trustee or director, Officer | 1 | $0 |
| Adam Laputz | Director Trustee or director | 1 | $0 |
| Karen Mogus | Director Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 4911 CENTRAL AVE, RICHMOND, CA 94804-5803
- Principal officer (990 for 2024)
- Emily Corwin, 4911 Central Avenue, Richmond, CA 94804
- Signed the 990
- Emily Corwin, Interim Executive Director
- Phone
- (510) 746-7360
- Website
- www.sfei.org
- Return prepared by
- Aprio Advisory Group LLC
California records
California keeps its own records of charities and corporations. Search them by EIN 94-2951373 or by the name SAN FRANCISCO ESTUARY INSTITUTE.
- 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
Provide scientific support and tools for decision making and communication through collaborative efforts.
Program accomplishments
- Clean Water Program: Our Clean Water Program is one of the nation's premier water quality science supporting aquatic resource protection. Clean Water anticipates and meets the water quality information needs of managers and the public. The Regional Monitoring Program for Water Quality in San Francisco Bay is the flagship of the Clean Water Program.Expenses $5,827,917 · revenue $7,424,659
- Resilient Landscapes Program: Resilient Landscapes develops ecosystem restoration and landscape management strategies that sustain key ecological services. We rigorously evaluate management alternatives using innovative visualization and design.Expenses $3,723,984 · revenue $4,580,680
- Regional Monitoring Program (RMP): The RMP is a subset of the Clean Water Program. Chemical contamination in San Francisco Bay is governed by the San Francisco Bay Regional Water Quality Control Board (the Water Board). The Water Board has a wellarticulated framework for managing contamination in the Bay contained in the Water Quality Control Plan (Plan). The Plan classifies the valued attributes of the Bay as "beneficial usesX and establishes water quality objectives that are protective of these beneficial uses. The RMP is an innovative collaborative effort between the Institute, the Water Baord, and the regulated discharges community. This program for contaminants of concern in the San Francisco Estuary is the primary source of information and is used to evaluate beneficial useimpairment in the Bay due to chemical contamination.Expenses $3,056,124 · revenue $4,094,449
- Environmental Informatics(EI): Working with both internal and external collaborators, Environmental Informatics operationalizes credible scientific knowledge using innovative technologies. The program is a union of multiple disciplines, organized to promote data management, visualization, analysis, and software development in support of ongoing and emerging needs.Environmental Informatics staff guide statewide technology efforts aimed to promote data transparency and exchange. They enjoy a strong track record of success and salience in a highly competitive technology environment. By augmenting the capacity of key public partners, the team credibly translates authoritative aquatic ecosystem data into dynamic, visually stimulating information to guide and evaluate environmental planning, management, and regulatory decisions.Aquatic Science Center (ASC): Was formed to assist with the efficient delivery of financial, scientific, monitoring, and information management support functions.Expenses $3,079,542 · revenue $3,294,138
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 June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 94-2951373
- 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
- 1987
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C053)
- Assets (IRS master file)
- $18,188,462
- Income (IRS master file)
- $19,594,340
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $19,594,340 | $19,110,723 | $18,188,462 | IRS |
| 990 | June 2024 | $15,591,047 | $15,459,096 | $18,144,200 | IRS |
| 990 | June 2023 | $13,822,849 | $13,853,965 | $18,506,435 | XML |
| 990 | June 2022 | $14,372,821 | $13,464,186 | $16,791,095 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | IRS |
| 990 | June 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 94-2951373).
Questions about SAN FRANCISCO ESTUARY INSTITUTE
- What is the EIN of SAN FRANCISCO ESTUARY INSTITUTE?
- The employer identification number (EIN) of SAN FRANCISCO ESTUARY INSTITUTE is 94-2951373.
- Is SAN FRANCISCO ESTUARY INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1987.
- Are donations to SAN FRANCISCO ESTUARY INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SAN FRANCISCO ESTUARY INSTITUTE 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 SAN FRANCISCO ESTUARY INSTITUTE due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SAN FRANCISCO ESTUARY INSTITUTE last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of SAN FRANCISCO ESTUARY INSTITUTE?
- The 990 for the year ended June 30, 2025 names Emily Corwin.
- Who are the officers and directors of SAN FRANCISCO ESTUARY INSTITUTE?
- The 990 for the year ended June 30, 2025 lists 26 people; 11 received compensation from the organization, the highest $182,526 (Warner Chabot, Executive Director).
- How much revenue does SAN FRANCISCO ESTUARY INSTITUTE have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $19,594,340, expenses of $19,110,723 and total assets of $18,188,462 at year end.
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