AB Systems

A.B. Systems, Inc. is a design/build commercial construction company headquartered in Rochester, Minnesota. We were incorporated in 1972 by brothers Karl and Peter Schuller. We are an employee-owned (ESOP) company, with 49% employee ownership, making us one of the few construction companies to participate in an employee stock ownership program. We have constructed over 12 million square feet of commercial building space in the past 45 years, and specialize in the design and construction of commercial, industrial, and institutional buildings. We have done over 2000 jobs in our company’s history, and have worked with notable companies such as Viracon, McNeilus Steel, Alumacraft, Wells Fargo, Hormel, Pepsi-Cola, Fed-Ex, Rochester Medical, Halcon, West Bank, and Tom Kadlec Honda.