LeJeune Steel Company has been in the structural steel fabrication and steel detailing business since 1944. The company has grown to become the largest steel fabricator in the upper Midwest, fabricating 40,000 tons of steel annually. LeJeune is a division of API Group. API is a multinational corporation providing services in five areas: construction, fire protection, special systems, steel fabrication and building materials distribution. In addition, the company has fabrication shops in Minnesota and Wisconsin.