Costamare is a containership owner that charters its vessels to major liner companies under time charter contracts. Costamare owns the ships but outsources fleet management to Costamare Shipping and sub-managers, while charterers handle voyage costs like fuel and port fees. As of early 2026, Costamare owned 79 containerships totaling ~551,000 TEU of capacity, including 10 newbuilds under construction, spanning vessel sizes from ~1,000 TEU feeder ships to 14,400 TEU ultra-large vessels. Top customers — Maersk, MSC, Evergreen, Hapag Lloyd, and ZIM — together account for roughly 74-76% of containership revenue. Costamare targets long-term, fixed-rate charters to reduce spot market exposure, and as of early 2026 held ~$3.6B in contracted revenues with ~4.4 years of average remaining charter duration. Beyond containerships, Costamare controls Neptune Maritime Leasing, a specialty maritime lending platform that acquires vessels via sale-leaseback transactions and bareboat charters them back to original owners across dry bulk, offshore, tanker, and container vessel types. Costamare had invested ~$182M in Neptune and held effective voting control. Costamare spun off its dry bulk business in May 2025, making it effectively a pure-play containership owner plus the Neptune leasing platform.