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Nonprofit · EIN 94-6089780

MARIN CONSERVATION LEAGUE

Tax-exempt · SAN RAFAEL, CA 94903

Financials

$267K$293K2023$832K$320K2024$686K$391K2025
Revenue Expenses · by fiscal year end
Financials of MARIN CONSERVATION LEAGUE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$686,180$390,688$295,492$4,096,435$11,483$4,084,952
December 31, 2024990$831,992$320,418$511,574$3,592,520$1,682$3,590,838
December 31, 2023990$267,026$293,090-$26,064$3,032,691$336$3,032,355
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$401,503
Membership dues
$94,717
Program service revenue
$0
Investment income
$286,063
Net gain from sales of assets
$215,777
Net income from fundraising events
-$3,747
Other revenue
-$1,386

Expenses

Grants and similar amounts paid
$5,003
Compensation of officers, directors and key employees
$66,113
Other salaries and wages
$82,371
Salaries, compensation and benefits (total)
$162,612
Professional fundraising fees
$0
Legal fees
$4,064
Accounting fees
$2,400
Occupancy
$33,483
Travel
$391
Depreciation
$190
Program services (functional)
$294,722
Management and general (functional)
$65,257
Fundraising (functional)
$30,709

Balance sheet and other

Total assets, start of year
$3,592,520
Total assets, end of year
$4,096,435
Total liabilities, end of year
$11,483
Net assets, end of year
$4,084,952
Land, buildings and equipment
$44,144
Publicly traded securities
$3,596,471
Net assets without donor restrictions
$4,052,641
Net assets with donor restrictions
$32,311
Gross receipts
$2,068,480
Employees
3
Volunteers
19
Year formed
1940
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.

NameTitleHours / weekCompensation
REBECCA SCHWARTZ LESBERGExecutive Dir.
Officer
40$66,113
MIKE SWEZYPresident
Trustee or director, Officer
15$0
RICHARD JENSENTreasurer
Trustee or director, Officer
15$0
PAUL JENSEN1st Vice Pres.
Trustee or director, Officer
12$0
PAMELA REAVES2ND VICE PRES.
Trustee or director, Officer
6$0
JANE MEDLEYDirector
Trustee or director
1$0
ROBERT MILLERDirector
Trustee or director
1$0
BELLE COLEDirector
Trustee or director
1$0
KENNETH DREXLERDirector
Trustee or director
1$0
JACK LIEBSTERDirector
Trustee or director
1$0
NANCY HUGHESDirector
Trustee or director
1$0
JIM BURROUGHSDirector
Trustee or director
1$0
GREG ZITNEYDirector
Trustee or director
1$0
KEN STRONGDirector
Trustee or director
1$0
NONA DENNISDirector
Trustee or director
1$0
5 more people on this return
NameTitleHours / weekCompensation
VICKI NICHOLSDirector
Trustee or director
1$0
BOBBI SIMPSONDirector
Trustee or director
1$0
LARRY MINIKESDirector
Trustee or director
1$0
KATE POWERSSecretary
Trustee or director, Officer
3$0
JEFF STUMPDirector
Trustee or director
1$0
990 for the year ended December 31, 2024: 22 people
NameTitleHours / weekCompensation
KATE SHILVOCKExecutive Dir.
Officer
40$85,000
NONA DENNISPresident
Trustee or director, Officer
15$0
RICHARD JENSENTreasurer
Trustee or director, Officer
15$0
PAUL JENSEN1st Vice Pres.
Trustee or director, Officer
12$0
PAMELA REAVES2ND VICE PRES.
Trustee or director, Officer
6$0
JANE MEDLEYDirector
Trustee or director
1$0
ROBERT MILLERDirector
Trustee or director
1$0
BELLE COLEDirector
Trustee or director
1$0
KENNETH DREXLERDirector
Trustee or director
1$0
JACK LIEBSTERDirector
Trustee or director
1$0
NANCY HUGHESDirector
Trustee or director
1$0
AVIVA ROSSIDirector
Trustee or director
1$0
GREG ZITNEYDirector
Trustee or director
1$0
KEN STRONGDirector
Trustee or director
1$0
TERRI THOMASDirector
Trustee or director
1$0
VICKI NICHOLSDirector
Trustee or director
1$0
GEORGIA MCINTOSHDirector
Trustee or director
1$0
BOBBI SIMPSONDirector
Trustee or director
1$0
MIKE SWEZYDirector
Trustee or director
1$0
LARRY MINIKESDirector
Trustee or director
1$0
KATE POWERSSecretary
Trustee or director, Officer
3$0
JEFF STUMPDirector
Trustee or director
1$0
990 for the year ended December 31, 2023: 19 people
NameTitleHours / weekCompensation
TERRI THOMASPresident
Trustee or director, Officer
15$0
RICHARD JENSENTreasurer
Trustee or director, Officer
8$0
LINDA NOVY1st Vice Pres.
Trustee or director, Officer
12$0
PAMELA REAVES2ND VICE PRES.
Trustee or director, Officer
6$0
JANE MEDLEYDirector
Trustee or director
1$0
ROBERT MILLERDirector
Trustee or director
1$0
BELLE COLEDirector
Trustee or director
1$0
KENNETH DREXLERDirector
Trustee or director
1$0
PAUL JENSENDirector
Trustee or director
1$0
NANCY HUGHESDirector
Trustee or director
1$0
AVIVA ROSSIDirector
Trustee or director
1$0
GREG ZITNEYDirector
Trustee or director
1$0
ROGER HARRISDirector
Trustee or director
1$0
GEORGIA MCINTOSHDirector
Trustee or director
1$0
LARRY KENNINGSDirector
Trustee or director
1$0
MIKE SWEZYDirector
Trustee or director
1$0
LARRY MINIKESSecretary
Trustee or director, Officer
3$0
KATE POWERSDirector
Trustee or director
1$0
JEFF STUMPDirector
Trustee or director
1$0

Address and contacts

Address (IRS master file)
175 N REDWOOD DR STE 135, SAN RAFAEL, CA 94903-1977
Principal officer (990 for 2025)
MIKE SWEZY, ADDRESS PAGE 1, SAN RAFAEL, CA 94903
Signed the 990
RICHARD JENSEN, Treasurer
Phone
(415) 485-6257
Return prepared by
Mark Mumm CPA

California records

California keeps its own records of charities and corporations. Search them by EIN 94-6089780 or by the name MARIN CONSERVATION LEAGUE.

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

Mission

THE MISSION OF MARIN CONSERVATION LEAGUE IS TO PRESERVE, PROTECT AND ENHANCE THE NATURAL ASSETS OF MARIN IN A CHANGING ENVIRONMENT.

990 for the year ended December 31, 2025

Program accomplishments

  • THE CORPORATION WORKS TO PRESERVE, PROTECT AND ENHANCE THE NATURAL ASSETS OF MARIN COUNTY. IN 2025, AMONG OTHER THINGS, IT PRODUCED NEWSLETTERS, CONDUCTED EDUCATIONAL ACTIVITIES, AND ADVOCATED LOCAL GOVERNMENT TO ADOPT AND FOLLOW ENVIRONMENTALLY SOUND POLICIES.
    Expenses $294,722 · grants $5,003

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

IRS record

EIN
94-6089780
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1953
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Environment (C300)
Assets (IRS master file)
$4,096,435
Income (IRS master file)
$2,068,480

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$686,180$390,688$4,096,435XML
990December 2024$831,992$320,418$3,592,520XML
990December 2023$267,026$293,090$3,032,691XML
990December 2022$466,782$290,494$2,686,664IRS
990December 2021–––IRS
990December 2020–––IRS
990December 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 94-6089780).

Questions about MARIN CONSERVATION LEAGUE

What is the EIN of MARIN CONSERVATION LEAGUE?
The employer identification number (EIN) of MARIN CONSERVATION LEAGUE is 94-6089780.
Is MARIN CONSERVATION LEAGUE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1953.
Are donations to MARIN CONSERVATION LEAGUE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MARIN CONSERVATION LEAGUE 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 MARIN CONSERVATION LEAGUE 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 MARIN CONSERVATION LEAGUE 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 MARIN CONSERVATION LEAGUE?
The 990 for the year ended December 31, 2025 names MIKE SWEZY.
Who are the officers and directors of MARIN CONSERVATION LEAGUE?
The 990 for the year ended December 31, 2025 lists 20 people; 1 received compensation from the organization, the highest $66,113 (REBECCA SCHWARTZ LESBERG, Executive Dir.).
How much revenue does MARIN CONSERVATION LEAGUE have?
On its 990 for the year ended December 31, 2025 it reported revenue of $686,180, expenses of $390,688 and total assets of $4,096,435 at year end.

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