Pfleger Institute Of Enviromental Research

Oceanside, CA
Tax-exempt since April 1997
EIN: 33-0735400

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Type of Nonprofit

Designated as a 501(c)(3) Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Science and Technology Research Institutes, Services / Unknown (U00Z) (NTEE)

Donations to this organization are tax deductible.

Revenue

$1.21M (2023)

Expenses

$1.2M (2023)

Total Assets

$211k (2023)

Total Liabilities

$0 (2023)

Source: Form 990 tax filings from 2011 to 2023

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2023

Revenue

$1,209,900

Expenses

$1,201,625

Net Income

$8,275

Net Assets

$211,072

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,209,900	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,138,061	94.7%
Compensation of Officers*	$224,500	18.7%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$211,072
Total Liabilities	$0
Net Assets	$211,072

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$149,500	$0
Scott Aalbers (Research Biologist)	$100,156	$0
Victoria L Wintrode (Sec/Treasurer)	$75,000	$0
Michael S Wang (Research Biologist)	$71,000	$0
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Oct. 11, 2024

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending Dec.
2022

Revenue

$1,205,884

Expenses

$1,226,147

Net Income

-$20,263

Net Assets

$202,797

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,205,884	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,240,219	> 100%
Compensation of Officers*	$307,986	25.1%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$202,797
Total Liabilities	$0
Net Assets	$202,797

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$134,375	$72,892
Scott Aalbers (Research Biologist)	$95,375	$26,645
Victoria L Wintrode (Sec/Treasurer)	$64,375	$36,344
Michael S Wang (Research Biologist)	$59,302	$7,314
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on June 26, 2023

Primary tax return for a private foundation's activities, finances, and governance

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XML

Fiscal Year Ending Dec.
2021

Revenue

$761,210

Expenses

$977,229

Net Income

-$216,019

Net Assets

$223,060

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$761,210	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$945,685	96.8%
Compensation of Officers*	$190,000	19.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$223,060
Total Liabilities	$0
Net Assets	$223,060

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$130,000	$0
Scott Aalbers (Research Biologist)	$87,875	$0
Victoria L Wintrode (Sec/Treasurer)	$60,000	$0
Michael S Wang (Research Biologist)	$57,875	$0
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on June 30, 2022

Primary tax return for a private foundation's activities, finances, and governance

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XML

Fiscal Year Ending Dec.
2020

Revenue

$940,584

Expenses

$964,482

Net Income

-$23,898

Net Assets

$339,833

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$942,148	> 100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$931,981	96.6%
Compensation of Officers*	$189,910	19.7%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$339,834
Total Liabilities	$1
Net Assets	$339,833

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$129,910	$0
Scott Aalbers (Research Biologist)	$86,008	$0
Victoria L Wintrode (Sec/Treasurer)	$60,000	$0
Michael S Wang (Research Biologist)	$54,833	$0
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Aug. 27, 2021

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Dec.
2019

Revenue

$1,103,163

Expenses

$1,063,386

Net Income

$39,777

Net Assets

$264,432

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,109,220	> 100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,030,370	96.9%
Compensation of Officers*	$185,000	17.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$268,719
Total Liabilities	$4,287
Net Assets	$264,432

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$125,000	$0
Scott Aalbers (Research Biologist)	$83,708	$0
Victoria L Wintrode (Sec/Treasurer)	$60,000	$0
Michael S Wang (Research Biologist)	$50,875	$0
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Aug. 10, 2020

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Dec.
2018

Revenue

$1,165,009

Expenses

$1,157,893

Net Income

$7,116

Net Assets

$224,655

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,163,809	99.9%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$1,200	0.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,123,987	97.1%
Compensation of Officers*	$180,000	15.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$224,955
Total Liabilities	$300
Net Assets	$224,655

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$120,000	$64,147
Scott Aalbers (Research Biologist)	$81,000	$22,151
Victoria L Wintrode (Sec/Treasurer)	$60,000	$23,137
Paul S Tutanjian (Research Biologist)	$50,325	$20,826
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Nov. 15, 2019

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Dec.
2017

Revenue

$957,308

Expenses

$1,042,012

Net Income

-$84,704

Net Assets

$217,539

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$959,990	> 100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	-$2,682
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,005,998	96.5%
Compensation of Officers*	$180,000	17.3%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$217,989
Total Liabilities	$450
Net Assets	$217,539

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$120,000	$55,150
Scott Aalbers (Research Biologist)	$80,375	$21,909
Victoria L Wintrode (Sec/Treasurer)	$60,000	$22,792
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Nov. 13, 2018

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Dec.
2016

Revenue

$1,471,177

Expenses

$1,279,851

Net Income

$191,326

Net Assets

$302,243

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,471,177	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,247,713	97.5%
Compensation of Officers*	$181,042	14.1%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$302,693
Total Liabilities	$450
Net Assets	$302,243

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$120,000	$54,637
Scott Aalbers (Research Biologist)	$76,000	$22,002
Victoria L Wintrode (Secretary/Treasurer)	$61,042	$22,583
Paul S Tutanjian (Research Biologist)	$45,600	$19,345
Thomas Fullam (Skipper)	$41,808	$7,123
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Oct. 13, 2017

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Dec.
2015

Revenue

$1,202,873

Expenses

$1,245,449

Net Income

-$42,576

Net Assets

$163,481

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,245,468	> 100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	-$42,595
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,218,305	97.8%
Compensation of Officers*	$203,750	16.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$313,481
Total Liabilities	$150,000
Net Assets	$163,481

Compensation

Key Employees and Officers	Compensation	Other
Chugey Sepulveda (President)	$119,375	$59,024
Victoria L Wintrode (Secretary/Treasurer)	$84,375	$25,980
Scott Aalbers (Research Biologist)	$75,075	$26,420
Thomas Fullam (Skipper)	$70,085	$12,285
Paul S Tutanjian (Research Biologist)	$53,200	$23,952
Thomas G Pfleger (Chairman)	$0	$0
Jack Bernstein (Trustee)	$0	$0

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990-PF

Filed on Nov. 7, 2016

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Dec.
2014

Revenue

$1,266,257

Expenses

$1,302,625

Net Income

-$36,368

Net Assets

$188,827

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,266,257	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,285,395	98.7%
Compensation of Officers*	$195,000	15.0%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$188,827
Total Liabilities	$0
Net Assets	$188,827

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2013

Revenue

$1,009,242

Expenses

$1,189,591

Net Income

-$180,349

Net Assets

$189,861

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,009,242	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,154,257	97.0%
Compensation of Officers*	$181,500	15.3%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$189,861
Total Liabilities	$0
Net Assets	$189,861

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2012

Revenue

$1,039,117

Expenses

$1,155,663

Net Income

-$116,546

Net Assets

$370,210

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$930,554	89.6%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$108,563	10.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,013,747	87.7%
Compensation of Officers*	$167,830	14.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$370,210
Total Liabilities	$0
Net Assets	$370,210

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Revenue

$995,958

Expenses

$1,120,032

Net Income

-$124,074

Net Assets

$486,756

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$995,958	100%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$949,152	84.7%
Compensation of Officers*	$159,248	14.2%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$487,981
Total Liabilities	$1,225
Net Assets	$486,756

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

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Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

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Updated September 25, 2025

Pfleger Institute Of Enviromental Research

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $1.21M (2023)

Expenses $1.2M (2023)

Total Assets $211k (2023)

Total Liabilities $0 (2023)

Tax Filings by Year

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2011

Extracted Financial Data

Revenue

$1.21M (2023)

Expenses

$1.2M (2023)

Total Assets

$211k (2023)

Total Liabilities

$0 (2023)

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2006

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
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2002

Fiscal Year Ending Dec.
2001