Orion Group Holdings Inc is a US-based company which provides solutions in marine construction, design and specialty services both on and off the water in the continental US, Alaska, Canada, and the Caribbean Basin. It provides services such as marine transportation facility construction, marine pipeline construction, marine environmental structures, dredging of waterways, channels and ports, environmental dredging, design, and specialty services. It also provides turnkey concrete construction services including pour and finish, dirt work, layout, forming, and mesh across the commercial and structural business areas. It manages its business in two segments namely marine segment and concrete segment. The firm earns most of its revenue from the US.