HALLBERG BUTTERFLY GARDENS
EIN 91-1767178 · Environment (C410)
What they do
FOSTER THE BREEDING, PROPAGATION, PROTECTION, PRESERVATION and SCIENTIFIC STUDY of THE LEPIDOPTERA ORDER BY OPERATION of ONE or MORE EXPERIMENTAL BUTTERFLY HABITATS. PROVIDE EDUCATION and INFORMATION CENTERS.
Should I give to this charity?
Of every $100 spent, about $69.80 was reported for mission work. Use the spending picture below and ask what results that work produced.
Plain answer: A tax form cannot prove that a charity is doing good. It can show how the charity says it spent its money—and point out questions you should ask.
Basic facts we verified
IRS warning checkNo IRS revocation warning appears in this data.
Money report from 2025The charity has a recent tax report to read.
They explain their jobThe charity tells us what it is trying to do.
They name their leaders6 people are listed in the latest report.
You can reach themThey list contact information, so you can ask questions.
Money made simple
Ask these three easy questions
- Who did you help? Ask for a recent story or report that shows real results.
- What will my money do? Ask exactly what your gift will pay for.
- Is this really the charity? Give only through its official website or confirmed phone number.
Bottom line: Do not decide from a name, mission statement, or tax status alone. Look at where the money went, then ask what changed, who was helped, and what your gift will do. YouCanGiveBack does not endorse or grade organizations.
Financial picture
A plain-language look at the latest Form 990 figures available. These numbers help you ask better questions; they do not, by themselves, rate whether a charity is good or bad.
Where each $100 of expenses went
The first percentage is the spending mix. The second compares that amount with the charity’s revenue.
Has the pattern changed?
Each bar shows the share of annual spending reported for mission work, management, and fundraising.
Money in and money out
Reported spending amounts
Mission work means the Form 990 category called program services. These are reported accounting categories—not an independent measurement of results.
See all reported dollar amounts
Leadership and board
Names, titles, time, and compensation below are reported by the organization on its Form 990.
See everyone listed on the board or leadership roster (6)
DON MAHONEYPRESIDENT
ISIS HOWARDBOARD MEMBER
JO BENTZTREASURER
KATHY JACOBSBOARD MEMBER
KATHY TRAFTONSECRETARY
LEAH BRORSTROMBOARD MEMBER
About this charity
- Recognized since
- January 1997
- Location
- 8687 OAK GROVE AVE, SEBASTOPOL, CA 95472
- County
- Sonoma
- In care of
- JO BENTZ
- Primary officer
- JO BENTZ, Treasurer
How to reach them
Filing and classification
- Latest tax year
- 2025
- Tax period began
- January 1, 2025
- Return type
- 990
- Tax preparer
- ANN M CARINALLI CPAINC
- NTEE classification
- Environment (C410)
- IRS tax category
- Zoos and Botanical Gardens