A.P. Møller - Mærsk A/S operates through four main business segments: Ocean, Logistics & Services, Terminals, and Towage & Maritime Services. The Ocean segment, which is the company's core business, manages a vast global network of container ships and transshipment hubs under brands such as Maersk Line. The Logistics & Services division offers end-to-end supply chain solutions, including freight forwarding, warehousing, and customs clearance. Through its APM Terminals brand, the company operates a global network of port and gateway terminals. Headquartered in Copenhagen, Denmark, Maersk has transitioned from a diversified conglomerate into a focused, integrated logistics provider.