Gage Corporation Share: Manufacturing & Production Gage Corporation Visit Website Request Info 777 S Black River St. Sparta, WI 54656 (608) 269-7447 (608) 269-7622 (fax) Hours: Mon - Thurs 8:00 - 4:30Friday 8:00 - 12:00 About About Serving architects and designers around the world with distinctive metal architectural products since 1989.