Local 420, formed in 2012, is a product of many years of hard work by Local 317 Business Manager Mark Maierle, Local 310 Business Manager Tom Rosenberg, Local 950 President Greg Beck, their predecessors and executive boards. Although we are newly formed we have a rich history of more than 200 combined years of representing our members, organizing workers, labor movement issues and political activism.

Local 420 has approximately 2,200 members working at various employers throughout the state of Wisconsin.