SUSTAINABLE MARIN
EIN 94-3308034 · Natural Resources Conservation & Protection (C30)
What they do
WE ARE A NONPROFIT ORGANIZATION WORKING SINCE 1999 to ADVANCE ENVIRONMENTAL and ECONOMIC SUSTAINABILITY and SOCIAL WELL-BEING THROUGHOUT OUR COUNTY, THROUGH OUR GRASSROOTS EFFORTS and THOSE of OUR TOWN and CITY CHAPTERS and AFFILIATES. WE COLLECTIVELY CALL OURSELVES THE SUSTAINABLES.
Are they doing good?
The public paperwork has several good signs. Now check whether the charity can show who it helped.
Here is the honest answer: A tax form shows money and paperwork. It cannot prove that people, animals, or the community were truly helped.
Good signs we looked for
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 leaders10 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: Good paperwork is a good sign—not proof. The best answer comes when the charity can show what it changed, who it 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.
Money in and money out
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 (10)
AMY SKEWES COXSECRETARY
CAROLYN LUNDDIRECTOR
CHARLES DENNISDIRECTOR
CYNTHIA KOEHLERDIRECTOR
KIKI LA PORTAVICE PRESIDE
MARILYN PRICEDIRECTOR
MILES SMITHDIRECTOR
PETER WARINGDIRECTOR
VICTORIA HOLMLUNDTREASURER
WENDI KALLINSPRESIDENT
About this charity
- Recognized since
- January 1999
- Location
- PO BOX 201, FOREST KNOLLS, CA 94933
- County
- Marin
- In care of
- WENDI KALLINS
- Primary officer
- WENDI KALLINS, PRESIDENT
How to reach them
Filing and classification
- Latest tax year
- 2025
- Tax period began
- January 1, 2025
- Return type
- 990
- Tax preparer
- JANNISSE & HULL CPAS
- NTEE classification
- Natural Resources Conservation & Protection (C30)
- IRS tax category
- Natural Resources Conservation & Protection