The Keizer Companies is a family owned group of companies. Our Mid-States Utility Trailer Sales, Inc. division is one of the ... largest semi-trailer dealerships in the U.S. today, servicing thousands of customers in and traveling through the Midwest from our dealerships in Sioux City, IA, Sioux Falls, SD, Omaha, NE, and Des Moines, IA. Our full-service dealerships offer a large inventory of trailers and parts, a service and finance department, as well as short and long term trailer rentals. We are ready to serve you day or night with our 24 Hour mobile service to keep you on the road, delivering loads. We carry an extensive inventory of trailers including refrigerated, dry vans, flat beds, drop deck and Tautliner trailers. We are proud to offer a complete line of new trailers including Utility, East, Landoll and FeatherLite trailers. We can meet all your trailer needs from our on-site new and used inventory or order to your specifications. Keizer Refrigeration, Inc. is located in Sioux City, IA, and Transport Refrigeration of South Dakota, Inc. is located in Sioux Falls, SD. Both are top-performing distributors for Carrier Transicold, a global force in transport refrigeration. Our experienced sales, parts and service staff can help you with all your refrigeration needs. Our parts and service departments offer a 24 Hour mobile service available day or night for your convenience. The Keizer family takes great pride in its companies and understands that becoming a leader in the trucking/trailer industry requires understanding of what each customer wants and then following through with customized service that meets their equipment, parts or service needs. read more