Discrimination in housing, employment and credit on the basis of sexual orientation (as well as other protected classes) is explicitly prohibited by state law in Wisconsin. If you feel like you have been unlawfully discriminated against on the basis of your sexual orientation (i.e., because you are or are perceived to be gay, lesbian, bisexual or heterosexual), you can file a complaint with the Wisconsin Equal Rights Division Civil Rights Bureau http://dwd.wisconsin.gov/er/discrimination_civil_rights/how_to_file_cr_complaint.htm
Or visit or contact one of the Wisconsin Equal Rights Division’s main offices:
EQUAL RIGHTS DIVISION
201 EAST WASHINGTON AVE ROOM A300
PO BOX 8928
MADISON WI 53708-8928
Voice (608) 266-6860
TTY (608) 264-8752
FAX (608) 267-4592
or
EQUAL RIGHTS DIVISION
819 NORTH 6th ST
ROOM 255
MILWAUKEE WI 53203
Voice (414) 227-4384
TTY (414) 227-4081
FAX (414) 227-4084

If you feel like you have been discriminated against based on your gender identity and expression (for example, if you have suffered discrimination because you are transgender or because you express your gender in non-conforming ways), the protections available for you under the law are more limited. If you live or work in the cities of Madison or Milwaukee, you may be covered by local ordinances.