A land-based component of a giant water-based business, Maersk Inc. is the main US unit of Denmark-based container shipping company Maersk Line, which itself is a subsidiary of shipping giant A.P. M�ller - Maersk. Maersk Inc. serves as an agent for its parent, handling inland services for Maersk Line's 600 vessels with an overall capacity of approximately 2.6 million TEU (twenty-foot-equivalent units). The unit's network of about 100 offices in the US, Canada, Central America, and the Caribbean also arranges for customs house brokerage, storage (demurrage and detention), and electronic tracking and documentation. Its Maersk Line affiliates provide trucking and logistics services in the region.