Spartan Products
Spartan Products has manufactured steel and aluminum trailers for boats, snowmobiles, and recreational watercraft. Spartan was the oldest continuing manufacturer of boat trailers in the United States and based in Minneapolis, Minnesota.
MET-TEK
MET-TEK is a St. Paul, Minnesota-based full-service steel fabricator. The company fabricates steel from components to complex assemblies and prototypes to full scale production.