With over 150,000 doors in operation, Rytec, a Nucor company, is North America’s leading manufacturer of innovative, high-performance doors for industrial, commercial, retail, automotive, food and beverage, and controlled-temperature environments. Every door addresses a specific operational/environmental challenge and is custom-engineered for maximum safety, productivity and efficiency. The corporate office is headquartered in Jackson, WI, with additional manufacturing operations in Hartford, WI. Customer support is provided through national and regional offices, as well as a network of local dealers and installers throughout North America. Now celebrating our 40th year in business – 1985-2025.