WI Federal Installations & Major Employers

Wisconsin’s federal-employer footprint anchors at Fort McCoy (Sparta/Monroe County, ~60K troops/year transient) plus 128th Air Refueling Wing (Mitchell, Milwaukee), 115th Fighter Wing (Truax Field, Madison), Volk Field (Camp Douglas), Camp Williams. Major private employers: Mercury Marine, Harley-Davidson, Johnson Controls, Kohler, Oshkosh Corp, Northwestern Mutual, American Family, Acuity, SC Johnson, Kohl’s, Lands’ End, Kwik Trip, Aurora/Advocate, Froedtert, ThedaCare, Marshfield Clinic, UW Health, Schreiber Foods, Sargento, Molson Coors. Dairy industry tens of thousands of jobs.

Legal Disclaimer: This information reflects Wisconsin cannabis law as of May 2026 and is for educational purposes only. It is not legal advice. Laws and regulations change — always verify current rules with the Wisconsin Department of Health Services (DHS) for Lydia's Law CBD; Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) for hemp or a qualified attorney. Cannabis remains illegal under federal law.

Last verified: May 2026

Major Wisconsin Employers

Sector	Major Employers
Manufacturing	Mercury Marine (Fond du Lac); Harley-Davidson (Milwaukee/Menomonee Falls); Johnson Controls; Kohler; Oshkosh Corporation; Schreiber Foods; Sargento; Saputo; Foremost Farms; Molson Coors (Miller HQ Milwaukee).
Insurance & Financial	Northwestern Mutual; American Family Insurance; Acuity (Sheboygan); Kohl’s (Menomonee Falls); Lands’ End (Dodgeville).
Consumer Products	SC Johnson (Racine); Kwik Trip; Foxconn (Mount Pleasant, scaled-back).
Healthcare	Aurora/Advocate; Froedtert/Medical College; ThedaCare; Marshfield Clinic; UW Health; Bellin; Gundersen.
Federal Installations	Fort McCoy (Sparta/Monroe County, ~60K troops/year transient); 128th Air Refueling Wing (Mitchell, Milwaukee); 115th Fighter Wing (Truax Field, Madison); Volk Field Combat Readiness Training Center (Camp Douglas); Camp Williams (Juneau County).
Dairy & Agriculture	Tens of thousands of jobs across SD’s dairy industry; uniform drug-testing posture.

Wisconsin is at-will employment with no statutory cannabis-user employment protection — even under Lydia’s Law, employers may drug-test, refuse to hire, or terminate for positive THC. Federal-installation cannabis prohibition under EO 12564 + UCMJ Article 112a + DOT/FAA regulations applies regardless of state law.

Federal Installations

Fort McCoy (Sparta/Monroe County) — ~60,000 troops/year transient; major Army training installation.
128th Air Refueling Wing at Mitchell (Milwaukee).
115th Fighter Wing at Truax Field (Madison).
Volk Field Combat Readiness Training Center (Camp Douglas, Juneau County).
Camp Williams (Juneau County).
Foxconn LCD plant (Mount Pleasant, scaled-back) — standard manufacturing drug testing.

All federal installations apply EO 12564 + UCMJ Article 112a + DOT/FAA regulations to cannabis use regardless of state law. The April 28, 2026 federal Schedule III rescheduling does not modify these layered prohibitions as of May 2026.

Healthcare System Drug-Testing

Wisconsin’s major healthcare systems all impose drug-free-workplace policies:

Aurora / Advocate — major Milwaukee-area system.
Froedtert / Medical College — Milwaukee-area academic medical center.
ThedaCare — Fox Cities.
Marshfield Clinic — rural-WI healthcare anchor.
UW Health — Madison-area academic medical center.
Bellin / Gundersen — Green Bay, La Crosse.

Healthcare systems are uniformly testing — positive THC tests routinely terminate employment regardless of Lydia’s Law CBD certification.

Manufacturing Sector

Mercury Marine (Fond du Lac) — marine engines.
Harley-Davidson (Milwaukee/Menomonee Falls) — motorcycles.
Johnson Controls — building technology.
Kohler — plumbing fixtures and engines.
Oshkosh Corporation — specialty trucks.
Schreiber Foods, Sargento, Saputo, Foremost Farms — dairy.
Molson Coors (Miller HQ Milwaukee) — brewing.

Manufacturing-safety drug-testing is standard. Positive THC tests routinely terminate employment.

Insurance and Financial Services

Northwestern Mutual — insurance HQ.
American Family Insurance — insurance HQ.
Acuity (Sheboygan) — insurance.
Kohl’s (Menomonee Falls) — retail HQ.
Lands’ End (Dodgeville) — retail.
Kwik Trip — convenience-store chain.

Federal banking regulation produces uniform employer drug-testing standards for financial-services workers.

Dairy Industry

Wisconsin’s dairy industry employs tens of thousands of workers. The industry generally treats cannabis use as disqualifying. Healthcare and dairy are uniformly testing.

The Tavern League Reality

The Tavern League of Wisconsin’s lobbying influence has been cited by Sen. Larson and others as a barrier to cannabis-policy reform: legislators are "too beholden to their buddies in the Tavern League." The structural competition between alcohol-and-beer-industry interests and cannabis-policy-reform produces meaningful political dynamics in Wisconsin’s policy environment.