Heartland Express, Inc. is a holding company, which engages in the provision of short-to-medium haul truckload carrier services. The company is headquartered in North Liberty, Iowa and currently employs 5,700 full-time employees. The Company, together with its subsidiaries, is a short, medium and long-haul truckload carrier and transportation services provider. The company primarily provides a nationwide asset-based dry van truckload service for various shippers across the United States, along with cross-border freight and other transportation services offered through third party partnerships in Mexico. The Company’s primary customers include retailers, manufacturers and parcel carriers. Its over-the-road tractors are equipped with mobile communication systems. The company operates 31 terminal facilities throughout the contiguous United States and one in Mexico. The Company’s subsidiaries include Heartland Express, Inc. of Iowa, Heartland Express Services, Inc., Heartland Express Maintenance Services, Inc., Midwest Holding Group, LLC, Millis Transfer, LLC, Smith Transport, Inc. and others.