Orion Group Holdings, Inc. engages in the provision of specialty construction services in the building, industrial, and infrastructure sectors. The company is headquartered in Houston, Texas and currently employs 286 full-time employees. The company went IPO on 2007-12-20. The firm operates through two segments: marine and concrete. Its marine segment provides construction and dredging services relating to marine transportation facility construction, marine pipeline construction, marine environmental structures, dredging of waterways, channels and ports, environmental dredging, design, and specialty services. The Company’s concrete segment provides turnkey concrete construction services, including place and finish, site preparation, layout, forming, and rebar placement for large commercial, structural and other associated business areas. The firm also provides services both on and off the water in the continental United States, Alaska, Canada and the Caribbean Basin. Its specialty services include design, salvage, demolition, surveying, towing, diving and underwater inspection, excavation and repair.