WisconsinOffice Kahler Slater moves to new office in Madison January 16, 2019 Share on Facebook Share on Twitter Share on LinkedIn Share via email Global design firm Kahler Slater has moved its Madison, Wisconsin, office from the Capitol Square to 722 Williamson St. in Madison. Kahler Slater recently celebrated its 110th anniversary and the 30th year of its Madison presence. Notable local clients include SSM Health-St. Mary’s, Unity Point Health-Meriter, State of Wisconsin, Dane County YMCA and Forward Development.