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Nonprofit · EIN 27-3494471

FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY

Also known as KIMBERLY S GILDNER

Tax-exempt · ALPENA, MI 49707

Financials

$560K$293K2022$816K$353K2023$500K$283K2024$516K$237K2025
Revenue Expenses · by fiscal year end
Financials of FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
February 28, 2026990$515,919$237,438$278,481$1,685,672$1,045$1,684,627
February 28, 2025990$499,681$283,376$216,305$1,398,357$1,035$1,397,322
February 29, 2024990$816,419$352,571$463,848$1,164,493$1,666$1,162,827
February 28, 2023990$559,979$292,687$267,292$684,714$7,558$677,156
Financial details: 990 for the year ended February 28, 2026

Revenue

Contributions, gifts and grants
$216,176
Program service revenue
$211,115
Investment income
$28,268
Net gain from sales of assets
$20,970
Net income from fundraising events
$17,424
Net income from sales of inventory
$36,492
Other revenue
$60,360

Expenses

Grants and similar amounts paid
$0
Other salaries and wages
$33,391
Salaries, compensation and benefits (total)
$36,031
Professional fundraising fees
$0
Accounting fees
$4,435
Travel
$7,590
Depreciation
$2,834
Program services (functional)
$229,105
Management and general (functional)
$7,346
Fundraising (functional)
$987

Balance sheet and other

Total assets, start of year
$1,398,357
Total assets, end of year
$1,685,672
Total liabilities, end of year
$1,045
Net assets, end of year
$1,684,627
Land, buildings and equipment
$9,919
Net assets without donor restrictions
$1,676,428
Net assets with donor restrictions
$8,199
Gross unrelated business income
$16,039
Gross receipts
$663,206
Employees
10
Year formed
2010
State of legal domicile
MI

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 February 28, 2026, highest compensation first.

NameTitleHours / weekCompensation
KIMBERLY GILDNERDIRECTOR
Trustee or director
1$0
JEFF GRAYDIRECTOR
Trustee or director, Officer
1$0
BEACH HALLDIRECTOR
Trustee or director
1$0
AL MOEDIRECTOR
Trustee or director
1$0
CAROL SHAFTOTREASURER /
Trustee or director, Officer
2$0
CHARLES WIESENPRESIDENT
Trustee or director, Officer
2$0
990 for the year ended February 28, 2025: 6 people
NameTitleHours / weekCompensation
KIMBERLY GILDNERDIRECTOR
Trustee or director
1$0
JEFF GRAYDIRECTOR
Trustee or director, Officer
1$0
BEACH HALLDIRECTOR
Trustee or director
1$0
AL MOEDIRECTOR
Trustee or director
1$0
CAROL SHAFTOTREASURER /
Trustee or director, Officer
2$0
CHARLES WIESENPRESIDENT
Trustee or director, Officer
2$0
990 for the year ended February 29, 2024: 5 people
NameTitleHours / weekCompensation
JEFF GRAYDIRECTOR
Trustee or director, Officer
1$0
BEACH HALLDIRECTOR
Trustee or director
1$0
AL MOEDIRECTOR
Trustee or director
1$0
CAROL SHAFTOTREASURER /
Trustee or director, Officer
2$0
CHARLES WIESENPRESIDENT
Trustee or director, Officer
2$0
990 for the year ended February 28, 2023: 5 people
NameTitleHours / weekCompensation
JEFF GRAYDIRECTOR
Trustee or director, Officer
1$0
BEACH HALLDIRECTOR
Trustee or director
1$0
AL MOEDIRECTOR
Trustee or director
1$0
CAROL SHAFTOTREASURER /
Trustee or director, Officer
2$0
CHARLES WIESENPRESIDENT
Trustee or director, Officer
2$0

Address and contacts

Address (IRS master file)
500 W FLETCHER ST, ALPENA, MI 49707-1806
In care of
% MEAGHAN BLACK
Principal officer (990 for 2025)
CHARLES WIESEN, 500 W FLETCHER, ALPENA, MI 49707
Signed the 990
CHARLES WIESEN, PRESIDENT
Phone
(989) 356-8805
Return prepared by
BOLDREY SENCHUK ROULEAU & WILLIAMS CPAS

Mission

TO FUND AND SUPPORT THE OPERATIONS AND PROGRAMS OF THE THUNDER BAY NATIONAL MARINE SANCTUARY. THIS INCLUDES PROVIDING EDUCATIONAL OPPORTUNITIES AT THE SANCTUARY BUILDING AND WITHIN THE SANCTUARY BOUNDARIES.

990 for the year ended February 28, 2026

Program accomplishments

  • TO SUPPORT OPERATIONS AND PROGRAMS OF THE THUNDER BAY NATIONAL MARINE SANCTUARY
    Expenses $153,341 · revenue $139,318
  • PROVIDING EDUCATIONAL OPPORTUNITIES AT THE SANCTUARY BUILDING AND WITHIN THE SANCTUARY BOUNDARIES.
    Expenses $75,764 · revenue $71,797

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 February, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025February 28, 2026July 15, 2026990 on file
2024February 28, 2025July 15, 2025990 on file
2023February 29, 2024July 15, 2024990 on file

IRS record

EIN
27-3494471
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
2011
Accounting year ends
February
Files
Form 990 or 990-EZ
Assets (IRS master file)
$1,685,672
Income (IRS master file)
$663,206

Filing history

FormYear endedRevenueExpensesAssetsReturn
990February 2026$515,919$237,438$1,685,672XML
990-TFebruary 2026–––IRS
990February 2025$499,681$283,376$1,398,357XML
990-TFebruary 2025–––IRS
990February 2024$816,419$352,571$1,164,493XML
990-TFebruary 2024–––IRS
990February 2023$559,979$292,687$684,714XML
990-TFebruary 2023–––IRS
990February 2022$410,010$232,348$442,893IRS
990-TFebruary 2022–––IRS
990February 2021–––IRS
990-TFebruary 2021–––IRS
990February 2020–––IRS
990February 2019–––IRS
990February 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 27-3494471).

Questions about FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY

What is the EIN of FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY?
The employer identification number (EIN) of FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY is 27-3494471.
Is FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
Are donations to FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY 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 FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY due?
The return for tax year 2026 (the year ending February 28, 2027) is due July 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended February 2026.
Who is the principal officer of FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY?
The 990 for the year ended February 28, 2026 names CHARLES WIESEN.
Who are the officers and directors of FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY?
The 990 for the year ended February 28, 2026 lists 6 people; 0 received compensation from the organization.
How much revenue does FRIENDS OF THUNDERBAY NATIONAL MARINE SANCTUARY have?
On its 990 for the year ended February 28, 2026 it reported revenue of $515,919, expenses of $237,438 and total assets of $1,685,672 at year end.

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