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Nonprofit · EIN 39-1357247

OLBRICH BOTANICAL SOCIETY INC

Tax-exempt · MADISON, WI 53704

Financials

$3M$2.6M2023$3.7M$3.4M2024
Revenue Expenses · by fiscal year end
Financials of OLBRICH BOTANICAL SOCIETY INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$3,667,076$3,419,089$247,987$5,987,239$744,453$5,242,786
December 31, 2023990$2,960,788$2,566,516$394,272$5,121,944$187,649$4,934,295
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$1,938,750
Membership dues
$511,097
Program service revenue
$1,308,308
Investment income
$173,716
Net gain from sales of assets
$34,715
Net income from sales of inventory
$230,502
Other revenue
$246,302

Expenses

Grants and similar amounts paid
$545,575
Compensation of officers, directors and key employees
$124,437
Other salaries and wages
$1,255,986
Salaries, compensation and benefits (total)
$1,546,464
Professional fundraising fees
$0
Accounting fees
$59,191
Program services (functional)
$2,753,786
Management and general (functional)
$187,531
Fundraising (functional)
$477,772

Balance sheet and other

Total assets, start of year
$5,121,944
Total assets, end of year
$5,987,239
Total liabilities, end of year
$744,453
Net assets, end of year
$5,242,786
Publicly traded securities
$1,042,675
Net assets without donor restrictions
$3,809,524
Net assets with donor restrictions
$1,433,262
Gross receipts
$4,731,388
Employees
83
Volunteers
500
Year formed
1979
State of legal domicile
WI

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, 2024, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
TANYA ZASTROWEXECUTIVE DIRECTOR
Officer
40$108,568$15,874
ALNISA ALLGOODPRESIDENT
Trustee or director, Officer
1$0$0
SUSAN GOODWINVICE PRESIDENT
Trustee or director, Officer
1$0$0
LAURA PETERSONTREASURER
Trustee or director, Officer
1$0$0
BETHANY ORDAZSECRETARY
Trustee or director, Officer
1$0$0
PHILIP BRADBURYPAST PRESIDENT
Trustee or director, Officer
1$0$0
JULIE BERNAUERDIRECTOR
Trustee or director
1$0$0
MATT CORNWELLDIRECTOR
Trustee or director
1$0$0
CAREN LEWISDIRECTOR
Trustee or director
1$0$0
MIKE MADDOXDIRECTOR
Trustee or director
1$0$0
JOHN MANZERDIRECTOR
Trustee or director
1$0$0
MAUREEN MARTINDIRECTOR
Trustee or director
1$0$0
MICHELE MILLER HAYESDIRECTOR
Trustee or director
1$0$0
BILL PATEKDIRECTOR
Trustee or director
1$0$0
JUSCHA ROBINSONDIRECTOR
Trustee or director
1$0$0
1 more people on this return
NameTitleHours / weekCompensation
SANDRA H STATZDIRECTOR
Trustee or director
1$0
990 for the year ended December 31, 2023: 19 people
NameTitleHours / weekCompensationOther / benefits
TANYA ZASTROWEXECUTIVE DIRECTOR
Trustee or director, Officer
40$101,246$8,383
ALNISA ALLGOODPRESIDENT
Trustee or director, Officer
1$0$0
SUSAN GOODWINVICE PRESIDENT
Trustee or director, Officer
1$0$0
MAURICE SHEPPARDSECRETARY
Trustee or director, Officer
1$0$0
LAURA PETERSONTREASURER
Trustee or director, Officer
1$0$0
PHILIP BRADBURYPAST PRESIDENT
Trustee or director, Officer
1$0$0
JULIE BERNAUERDIRECTOR
Trustee or director
1$0$0
RENEE BOYCEDIRECTOR
Trustee or director
1$0$0
MATT CORNWELLDIRECTOR
Trustee or director
1$0$0
BETHANY ORDAZDIRECTOR
Trustee or director
1$0$0
BILL PATEKDIRECTOR
Trustee or director
1$0$0
JUSCHA ROBINSONDIRECTOR
Trustee or director
1$0$0
SANDRA STATZDIRECTOR
Trustee or director
1$0$0
JULIE RUPERTDIRECTOR
Trustee or director
1$0$0
BETTY CHEWNINGDIRECTOR/EX OFFICIO
Trustee or director
1$0$0
LIZ DANNENBAUMDIRECTOR/EX OFFICIO
Trustee or director
1$0$0
MOIRA HARRINGTONDIRECTOR/EX OFFICIO
Trustee or director
1$0$0
ERIC KNEPPDIRECTOR/EX OFFICIO
Trustee or director
1$0$0
LAUREL NEVERDAHLDIRECTOR/EX OFFICIO
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
3330 ATWOOD AVE, MADISON, WI 53704-5808
In care of
% ROBERTA SLADKY
Principal officer (990 for 2024)
TANYA ZASTROW, 3330 ATWOOD AVENUE, MADISON, WI 53704
Signed the 990
SUSAN GOODWIN, PRESIDENT
Phone
(608) 246-4586
Return prepared by
CLIFTONLARSONALLEN LLP

Mission

OLBRICH BOTANICAL GARDENS ENRICHES LIVES AND INSPIRES PEOPLE TO LIVE IN HARMONY WITH THE NATURAL WORLD. OLBRICH BOTANICAL GARDENS IS DEDICATED TO THE CREATION, CONSERVATION, AND INTERPRETATION OF GARDENS AND PLANT COLLECTIONS HARDY TO THE AMERICAN MIDWEST OR NATIVE TO THE WORLD'S TROPICAL FORESTS FOR STUDY, ENJOYMENT, AND PUBLIC BENEFIT. THE PUBLIC-PRIVATE PARTNERSHIP OF OLBRICH BOTANICAL SOCIETY AND THE CITY OF MADISON PARKS DIVISION MAKES THE MISSION POSSIBLE.

990 for the year ended December 31, 2024

Program accomplishments

  • PROGRAMS AND EXHIBITIONS: OLBRICH OFFERS A NUMBER OF FREE AND LOW-COST PROGRAMS TO MEMBERS AND THE GENERAL PUBLIC THAT HAVE EDUCATIONAL COMPONENTS RELATING TO THE PLANT AND GARDEN COLLECTIONS. PROGRAMMING AT OLBRICH BOTANICAL GARDENS IS GENERALLY MISSION-RELATED, ARE TRADITIONAL ACTIVITIES HELD WITHIN THE GARDENS, AND PROVIDE EDUCATIONAL OPPORTUNITIES FOR FAMILIES OR PURE ENJOYMENT WITHIN THE GARDENS FOR ALL AUDIENCES.
    Expenses $1,458,784 · grants $545,575 · revenue $1,381,325
  • GARDEN AND CONSERVATORY MAINTENANCE AND ENHANCEMENT: OLBRICH BOTANICAL SOCIETY ASSISTS THE CITY OF MADISON PARKS DIVISION TO MAINTAIN ANDENHANCE OLBRICH'S 16 ACRES OF OUTDOOR GARDENS AND THE 10,000 SQUARE FOOT TROPICAL BOLZ CONSERVATORY.
    Expenses $559,731
  • EDUCATION PROGRAMS: PROGRAMMING OFFERED IN 2024 IMPACTED MORE THAN 155,000 GUESTS, INCLUDING PROGRAMS FOR ADULTS, FAMILIES, YOUTH, AND SCHOOLS. MORE THAN 4,000 K-5 STUDENTS FROM SEVEN COUNTIES AND THREE STATES RECEIVE QUALITY, IMMERSIVE PLANT SCIENCE EDUCATION THROUGH EXPLORER PROGRAMS.
    Expenses $409,376 · revenue $173,285
  • PUBLIC RELATIONS: LETTING THE PUBLIC KNOW ABOUT THE ROBUST SLATE OF PROGRAMMING, SERVICES, AND OPPORTUNITIES AVAILABLE YEAR-ROUND AT OLBRICH AND HOW THE GARDENS ARE MAKING A DIFFERENCE AT OLBRICH AND THROUGHOUT THE COMMUNITY.
    Expenses $325,895

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, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
39-1357247
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
1980
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Environment (C114)
Assets (IRS master file)
$5,987,239
Income (IRS master file)
$4,731,388

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$3,667,076$3,419,089$5,987,239IRS
990December 2023$2,960,788$2,566,516$5,121,944XML
990December 2022$3,136,331$4,699,529$4,637,187IRS
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 39-1357247).

Questions about OLBRICH BOTANICAL SOCIETY INC

What is the EIN of OLBRICH BOTANICAL SOCIETY INC?
The employer identification number (EIN) of OLBRICH BOTANICAL SOCIETY INC is 39-1357247.
Is OLBRICH BOTANICAL SOCIETY INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1980.
Are donations to OLBRICH BOTANICAL SOCIETY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does OLBRICH BOTANICAL SOCIETY INC 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 OLBRICH BOTANICAL SOCIETY INC due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did OLBRICH BOTANICAL SOCIETY INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of OLBRICH BOTANICAL SOCIETY INC?
The 990 for the year ended December 31, 2024 names TANYA ZASTROW.
Who are the officers and directors of OLBRICH BOTANICAL SOCIETY INC?
The 990 for the year ended December 31, 2024 lists 16 people; 1 received compensation from the organization, the highest $108,568 (TANYA ZASTROW, EXECUTIVE DIRECTOR).
How much revenue does OLBRICH BOTANICAL SOCIETY INC have?
On its 990 for the year ended December 31, 2024 it reported revenue of $3,667,076, expenses of $3,419,089 and total assets of $5,987,239 at year end.

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