Great Lakes Brewing Company is a craft brewery located in Cleveland, Ohio, founded in 1988 by brothers Patrick and Daniel Conway. It is known for its commitment to quality and sustainability, using traditional brewing methods and local ingredients. The brewery offers a variety of beers, including popular options like Eliot Ness Amber Lager and Dortmunder Gold Lager. In addition to brewing, Great Lakes Brewing Company operates a brewpub that serves food and hosts events. The brewery is also involved in community initiatives and environmental efforts, making it a prominent player in the craft beer movement in the United States.