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Nonprofit · EIN 94-2554036

BIO-INTEGRAL RESOURCE CENTER

Tax-exempt · BERKELEY, CA 94707

Financials

$26K$42K2023$42K$46K2024$29K$33K2025
Revenue Expenses · by fiscal year end
Financials of BIO-INTEGRAL RESOURCE CENTER by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-EZ$28,740$33,196-$4,456$7,043$9$7,034
December 31, 2024990-EZ$41,622$45,577-$3,955$11,490–$11,490
December 31, 2023990-EZ$26,323$42,397-$16,074$15,455$10$15,445
Financial details: 990-EZ for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$18,902
Membership dues
$8,116
Program service revenue
$1,460
Net income from sales of inventory
$212
Other revenue
$50

Expenses

Compensation of officers, directors and key employees
$7,650
Salaries, compensation and benefits (total)
$8,507
Professional fees and payments to contractors
$1,275
Occupancy
$12,001
Printing, publications and postage
$4,715
Other expenses
$6,698
Program services (functional)
$24,232

Balance sheet and other

Total assets, start of year
$11,490
Total assets, end of year
$7,043
Total liabilities, end of year
$9
Net assets, end of year
$7,034
Cash, savings and investments
$6,318
Gross receipts
$28,740

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-EZ for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
Dr William QuarlesExecutive Dir.40$7,650
Andrew PollackPresident0.25$0
Mo-Mei ChenTreasurer0.25$0
990-EZ for the year ended December 31, 2024: 3 people
NameTitleHours / weekCompensation
Dr William QuarlesExecutive Dir.40$15,300
Andrew PollackPresident0.25$0
Mo-Mei ChenTreasurer0.25$0
990-EZ for the year ended December 31, 2023: 3 people
NameTitleHours / weekCompensation
Dr William QuarlesExecutive Dir.40$15,300
Andrew PollackPresident0.25$0
Mo-Mei ChenTreasurer0.25$0

Address and contacts

Address (IRS master file)
PO BOX 7414, BERKELEY, CA 94707-0414
Signed the 990-EZ
Dr William Quarles, Executive Dir.
Phone
(510) 524-2567
Return prepared by
OConnor & Company

California records

California keeps its own records of charities and corporations. Search them by EIN 94-2554036 or by the name BIO-INTEGRAL RESOURCE CENTER.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

Offering insight, experience, and leadership in the development and communication of least-toxic, sustainable, and environmentally sound Integrated Pest Management (IPM) methods.

990-EZ for the year ended December 31, 2025

Program accomplishments

  • The Bio-Integral Resource Center offers information and services regarding least toxic methods for managing pests and sustainable agriculture.
    Expenses $24,232

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-EZ on file
2024December 31, 2024May 15, 2025990-EZ on file
2023December 31, 2023May 15, 2024990-EZ on file

IRS record

EIN
94-2554036
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
1979
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Environment (C200)
Assets (IRS master file)
$7,043
Income (IRS master file)
$28,740

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZDecember 2025$28,740$33,196$7,043XML
990-TDecember 2025–––IRS
990-EZDecember 2024$41,622$45,577$11,490XML
990-TDecember 2024–––IRS
990-EZDecember 2023$26,323$42,397$15,455XML
990-TDecember 2023–––IRS
990-EZDecember 2022–––IRS
990-TDecember 2022–––IRS
990-EZDecember 2021–––IRS
990-TDecember 2021–––IRS
990-EZDecember 2020–––IRS
990-TDecember 2020–––IRS
990-EZDecember 2019–––IRS
990-EZDecember 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 94-2554036).

Questions about BIO-INTEGRAL RESOURCE CENTER

What is the EIN of BIO-INTEGRAL RESOURCE CENTER?
The employer identification number (EIN) of BIO-INTEGRAL RESOURCE CENTER is 94-2554036.
Is BIO-INTEGRAL RESOURCE CENTER tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1979.
Are donations to BIO-INTEGRAL RESOURCE CENTER tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does BIO-INTEGRAL RESOURCE CENTER file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of BIO-INTEGRAL RESOURCE CENTER 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 BIO-INTEGRAL RESOURCE CENTER last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
Who are the officers and directors of BIO-INTEGRAL RESOURCE CENTER?
The 990-EZ for the year ended December 31, 2025 lists 3 people; 1 received compensation from the organization, the highest $7,650 (Dr William Quarles, Executive Dir.).
How much revenue does BIO-INTEGRAL RESOURCE CENTER have?
On its 990-EZ for the year ended December 31, 2025 it reported revenue of $28,740, expenses of $33,196 and total assets of $7,043 at year end.

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