Contact Us

Get in touch with our staff about The Nature Conservancy’s work in Wisconsin.

Father with daughter on shoulders looks across wetlands and winding river to forests beyond as setting sun makes fall colors of vegetation glow.
Lulu Lake Preserve: The Mukwonago River, also called Crooked Creek, winds among wetlands, prairies and savannas found at preserves like the Lulu Lake Preserve. © Zane Williams

The Nature Conservancy in Wisconsin

Madison, WI

Wisconsin State Office

The Nature Conservancy
633 West Main Street
Madison, WI 53703
Phone: +1 608-251-8140
Email: wisconsin@tnc.org


  • The majority of TNC’s preserves in Wisconsin are open to visitors for hiking, canoeing, cross-country skiing, bird watching and photography. A few preserves are generally closed to the public, either due to access or liability problems or because even limited use would destroy the natural features we seek to protect.

    Many Wisconsin nature preserves are ADA accessible. Learn more here.

    You can find descriptions and directions to many of these preserves in the Places We Protect section of this website.

  • TNC provides hunting opportunities for deer, turkey and other game species at most Wisconsin preserves. Learn more here.

  • Yes! We hold stewardship work days at many of our preserves, and we have occasional office or remote volunteer needs. Please check out our volunteer page for more information and upcoming events.

    Feel free to contact us with any questions at WIVolunteer@tnc.org.

  • You can sign up for Wisconsin Great Places News if you want to help us speak up for Wisconsin’s lands, waters and wildlife. You’ll receive news about our work in Wisconsin, and, from time to time, we will send action alerts via Great Places News asking you to contact your Wisconsin legislators to support state and federal policy and funding issues that affect the Wisconsin lands, waters and wildlife you love. If you are interested in taking action for nature beyond Wisconsin, you can visit our Action Center any time.

  • You can e-mail Maureen O'Brien at mobrien@tnc.org.

  • Please contact Claire Davidson at claire.davidson@tnc.org or at 608-316-6425.


    2023-2024 Wisconsin Board of Trustees


    Chair: Martha Luber Pelrine, Sister Bay

    Vice-Chair: Douglas Caves, Middleton

    Vice-Chair: Ankur Desai, Madison

    Vice-Chair: Davor Grgic, Elkhart Lake

    Treasurer: Patricia Kampling, Middleton


    Tom Boldt, Appleton

    Debra Cervenka, Santa Rosa Beach, FL

    Kristine Cleary, Fox Point

    Claire Hackmann, Milwaukee

    Jeff Keller, Burlington

    Dr. George Koonce, Fond du Lac

    Chris Noyes, River Hills

    Judge Ralph Ramirez, Waukesha

    Jim Schleif, Milwaukee

    Michael Sheppard, Milwaukee

    Joy Zedler, Oregon

  • To apply for a research permit, please download and fill out our application and send it to us electronically. Appropriate TNC staff will be involved with reviewing the application, including scientists, land managers and program directors. We also coordinate with staff of other agencies, in particular the Wisconsin Department of Natural Resources, for many of our research permits.

  • Please mail all donation checks to the Wisconsin State Office in Madison:

    The Nature Conservancy
    633 West Main Street
    Madison, WI 53703

    For donation-related inquiries, please send us an email at wisconsin@tnc.org. Thank you!

Connect with The Nature Conservancy Worldwide

The Nature Conservancy is the leading conservation organization working around the world to protect ecologically important lands and waters for nature and people. We are impacting conservation in more than 70 countries and territories—protecting habitats from grasslands to coral reefs, from Australia to Alaska to Zambia.