Gateway Building Systems is a design and build contractor providing various construction services. Its produce various products, such as bins, storage and cleaning equipment, building metals and millwrights. It also provides design and build contractors, grain dryers and steel storage builders. The company s Flex-N-Seal is used to seal the base of grain bins against moisture. The company s building projects include AAction Moving & Storage, Fargo Cork & Cleaver, Asplin Sand & Gravel, Progressive Auto Refinishers and Cross Country Courier. Its agricultural projects include Lidgerwood Farmers Elevator Grain, O'Brien Seed, Hunter Grain, Dakota Pasta and Red River Grain. Gateway Building Systems is located in Fargo, N.D.