SEACOR Holdings Inc. engages in transportation and logistics, risk management consultancy, and other businesses in the United States and internationally. The company operates through Ocean Transportation & Logistics Services, Inland Transportation & Logistics Services, Witt O'Brien's, and Other segments. The Ocean Transportation & Logistics Services segment owns and operates a fleet of bulk transportation, port and infrastructure, and logistics assets. It operates carriers for the United States coastwise for trade of crude oil, petroleum, and chemical products; and dry bulk vessels. This segment provides deep-sea vessels docking, ocean towing, and oil terminal support and bunkering services; liner, short-sea, rail car, and project cargo transportation and logistics solutions; door-to-door solutions; and technical ship management services, as well as operates pure car/truck carriers. The Inland Transportation & Logistics Services segment offers river transportation equipment for moving agricultural and industrial commodities and containers, and petroleum products; and owns and operates multi-modal terminal locations. It also provides management services related to barge and towboat operations. The Witt O'Brien's segment provides crisis and emergency management services for the public and private sectors. It serves markets in the areas of critical national infrastructure, including government, energy, transportation, healthcare, and education. The Other segment designs, develops, and maintains alternative energy and power solutions; and offers liquefied natural gas and compressed natural gas fuel supply and logistics to commercial, industrial, agricultural, and transportation customers. This segment also engages in the selling, storage, and maintenance of aviation; agricultural commodity trading and logistics businesses; and trading and merchandising of sugar and other commodities. SEACOR Holdings Inc. was founded in 1989 and is based in Fort Lauderdale, Florida.