Nonprofit · EIN 33-0735400
PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH
Tax-exempt · OCEANSIDE, CA 92054
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $1,640,658 | $1,133,324 | $507,334 | $641,866 | $0 | $641,866 |
| December 31, 2024 | 990-PF | $1,083,300 | $1,159,840 | -$76,540 | $134,532 | $0 | $134,532 |
| December 31, 2023 | 990-PF | $1,209,900 | $1,201,625 | $8,275 | $211,072 | $0 | $211,072 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,629,358
- Net gain from sales of assets
- $11,300
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $240,683
- Salaries, compensation and benefits (total)
- $279,939
- Disbursements for charitable purposes
- $1,110,662
- Excise tax on investment income
- $157
Balance sheet and other
- Total assets, start of year
- $134,532
- Total assets, end of year
- $641,866
- Total liabilities, end of year
- $0
- Net assets, end of year
- $641,866
- Fair market value of assets
- $641,866
- Qualifying distributions
- $1,110,662
- Net investment income
- $11,300
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-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Chugey Sepulveda 1620 Laurel Rd, Oceanside, CA 92054 | President | 40 | $159,083 |
| Scott Aalbers 3643 Fallon Circle, San Diego, CA 92130 | Research Biologist Highest-paid employee | 40 | $106,000 |
| Victoria L Wintrode 6 La Costa Court, Laguna Beach, CA 92651 | Sec/Treasurer | 20 | $81,600 |
| Mason G Shaw 34542 Calle Monte, Capistrano Beach, CA 92624 | Research Biologist Highest-paid employee | 40 | $81,000 |
| Jennifer Thirkell 1080 Palm Ave, Carlsbad, CA 92008 | Admin Assistant Highest-paid employee | 40 | $54,000 |
| Sandra Pfleger 2549 Eastbluff Dr 481, Newport Beach, CA 92660 | Chairman | 10 | $0 |
| Layne Marceau 9472 Blessing Drive, Pleasanton, CA 94588 | Trustee | 2 | $0 |
990-PF for the year ended December 31, 2024: 7 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Chugey Sepulveda 1620 Laurel Rd, Oceanside, CA 92054 | President | 40 | $154,292 | – |
| Scott Aalbers 3643 Fallon Circle, San Diego, CA 92130 | Research Biologist Highest-paid employee | 40 | $104,688 | $42,776 |
| Victoria L Wintrode 6 La Costa Court, Laguna Beach, CA 92651 | Sec/Treasurer | 20 | $81,325 | – |
| Mason G Shaw 34542 Calle Monte, Capistrano Beach, CA 92624 | Research Biologist Highest-paid employee | 40 | $57,804 | – |
| Jennifer Thirkell 1080 Palm Ave, Carlsbad, CA 92008 | Admin Assistant Highest-paid employee | 40 | $53,350 | $7,413 |
| Sandra Pfleger 2549 Eastbluff Dr 481, Newport Beach, CA 92660 | Chairman | 10 | $0 | – |
| Layne Marceau 9472 Blessing Drive, Pleasanton, CA 94588 | Trustee | 2 | $0 | – |
990-PF for the year ended December 31, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Chugey Sepulveda 1620 Laurel Rd, Oceanside, CA 92054 | President | 40 | $149,500 |
| Scott Aalbers 3643 Fallon Circle, San Diego, CA 92130 | Research Biologist Highest-paid employee | 40 | $100,156 |
| Victoria L Wintrode 6 La Costa Court, Laguna Beach, CA 92651 | Sec/Treasurer | 20 | $75,000 |
| Michael S Wang 2714 Fernglen Road, Carlsbad, CA 92008 | Research Biologist Highest-paid employee | 40 | $71,000 |
| Thomas G Pfleger 2549 Eastbluff Dr 481, Newport Beach, CA 92660 | Chairman | 10 | $0 |
| Jack Bernstein 11027 Burbank Blvd, North Hollywood, CA 91601 | Trustee | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 315 HARBOR DR S STE B, OCEANSIDE, CA 92054-1035
- In care of
- % SUSAN CHUBBUCK CPA
- Signed the 990-PF
- Chugey Sepulveda, President
- Phone
- (760) 721-2178
- Website
- www.pier.org
- Return prepared by
- Susan Chubbuck CPA
California records
California keeps its own records of charities and corporations. Search them by EIN 33-0735400 or by the name PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH.
- 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)
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 33-0735400
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private operating foundation
- Donations deductible (Pub 78)
- Private operating foundation, 50% limit
- Exempt since
- 1997
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Science and technology (U00Z)
- Assets (IRS master file)
- $641,866
- Income (IRS master file)
- $1,640,658
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $1,640,658 | $1,133,324 | $641,866 | XML |
| 990-PF | December 2024 | $1,083,300 | $1,159,840 | $134,532 | XML |
| 990-PF | December 2023 | $1,209,900 | $1,201,625 | $211,072 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
| 990-PF | December 2017 | – | – | – | 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 33-0735400).
Questions about PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH
- What is the EIN of PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH?
- The employer identification number (EIN) of PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH is 33-0735400.
- Is PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
- Are donations to PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private operating foundation, 50% limit).
- Which annual return does PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH file?
- Form 990-PF. Private foundations file every year.
- When is the next return of PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH 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 PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH?
- The 990-PF for the year ended December 31, 2025 lists 7 people; 5 received compensation from the organization, the highest $159,083 (Chugey Sepulveda, President).
- How much revenue does PFLEGER INSTITUTE OF ENVIROMENTAL RESEARCH have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $1,640,658, expenses of $1,133,324 and total assets of $641,866 at year end.
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