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Laurel Sukup
Sustainability & Business Support

Green Tier participants, charters and applicants

The DNR's Green Tier program continues to grow and expand. Currently there are 53 participants in Tier 1, which includes a total of 170 facilities. There are also five Tier 2 contracts and six Charters.

Click on the names below to learn more about the Green Tier participants and their environmental endeavors. You can also use the tabs to search for only Tier 1, Tier 2 or Charter participants, review the list based on DNR region, view current applicants or learn about the Environmental Cooperation Pilot Program, the precursor to Green Tier.

By name

This is a list of all of the current Charter, Tier 1 and Tier 2 participants, alphabetical by participant name.

By location

This is a list of all of the current Charter, Tier 1 and Tier 2 participants by location.



Map of counties in the northeast region of WisconsinCounties: Brown, Calumet, Door, Fond du Lac, Green Lake, Kewaunee, Manitowoc, Marinette, Marquette, Menominee, Oconto, Outagamie, Shawano, Waupaca, Waushara, Winnebago.


Map of counties in the northern region of WisconsinCounties: Ashland, Barron, Bayfield, Burnett, Douglas, Florence, Forest, Iron, Langlade, Lincoln, Oneida, Polk, Price, Rusk, Sawyer, Taylor, Vilas, Washburn.

South Central

Map of counties in the south central region of WisconsinCounties: Columbia, Dane, Dodge, Grant, Green, Iowa, Jefferson, Lafayette, Richland, Rock, Sauk.


Map of counties in the southeast region of WisconsinCounties: Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Walworth, Washington, Waukesha.

West Central
Map of counties in the west central region of Wisconsin

Counties: Adams, Buffalo, Chippewa, Clark, Crawford, Dunn, Eau Claire, Jackson, Juneau, La Crosse, Marathon, Monroe, Pepin, Pierce, Portage, St. Croix, Trempealeau, Vernon, Wood.


A charter is a contract entered into by the DNR and an association committed to helping its members participate in Green Tier. An association may consist of private entities, public entities, or a combination. In a charter, the association must describe its goals, the responsibilities of its members, and the methods its members will use to accomplish their goals. The term of a charter can be between three and 10 years, with opportunity for renewal. Charters help business sectors, regions, supply chains, or other creative groupings of organizations establish and meet environmental objectives.

Tier 1

Tier 1 is the entry level into the Green Tier program. It is designed to allow companies committed to enhanced environmental protection to distinguish themselves from others. Tier 1 companies are generally environmental innovators with proactive management teams. The DNR is committed to supporting these companies with incentives, including use of the Green Tier logo, that are not available to other companies.

Tier 2

Tier 2 is designed for superior environmental companies. These companies can demonstrate a history of superior environmental performance, and have an effective Environmental Management System (EMS). Tier 2 participants represent the truly exceptional companies that are not only committed to going above and beyond, but are also committed to bringing about change in their industry, region, or within their supply chain.


If you wish to apply, please check out the Apply to become a Green Tier participant web page.

Pilot participants

The Environmental Cooperation Pilot Program evaluated innovative environmental regulatory methods. It was introduced by Gov. Tommy G. Thompson and passed by the State Legislature as part of the 1997-1999 Biennial Budget. The program provided DNR with the authority to enter into up to ten cooperative environmental agreements. The six participating companies helped DNR learn about innovative environmental initiatives and helped formulate the Green Tier program. These two companies are still active:

Last revised: Monday June 22 2020