Wisconsin
Madison IWW General Membership Branch
- Mailing Address: PO Box 2442, Madison, WI 53701-2442
- Email: madison@iww.org
Milwaukee IWW General Membership Branch
- Email: iww.milwaukee [at] gmail.com
- Phone: 414-436-9267
- Website: http://www.mkegmb.org/
- Mailing Address: PO Box 342294, Milwaukee, WI 53234