Orion Marine Group delivers world-class marine construction solutions throughout the continental United States, Canada, and the Caribbean Basin. It consists of the heavy civil marine construction subsidiaries of Orion Group Holdings, Inc. operating on, over, and under the water to carry out a large range of services, including construction, design, and specialty services for marine structures. Such operations include marine transportation construction, pipeline construction, environmental structures construction, dredging, and other marine specialty construction services.