No, the Milwaukee Motorcycle Company does not manufacture Harley-Davidson motorcycles. Harley-Davidson itself is based in Milwaukee, Wisconsin, and is one of the most well-known and iconic motorcycle manufacturers in the world. The company was founded in 1903 and has been producing motorcycles for over a century.
While there are various custom motorcycle builders and aftermarket parts manufacturers based in Milwaukee, the official production of Harley-Davidson motorcycles is carried out by Harley-Davidson Motor Company, a subsidiary of Harley-Davidson, Inc. The motorcycles are produced at Harley-Davidson's manufacturing facilities in the United States and other countries.
It's important to note that there might be aftermarket customization shops or custom bike builders in Milwaukee that create custom Harley-Davidson motorcycles using Harley-Davidson parts or components, but they are not the official manufacturers of Harley-Davidson motorcycles.