NVGS

Navigator Holdings Ltd.

A shipping company that moves liquefied gases by sea, Navigator Holdings (known as Navigator Gas) owns one of the world's largest fleets of "handysize" gas carriers — refrigerated, mid-sized vessels that ferry ethylene, ethane, LPG, and ammonia for petrochemical companies. Founded in 1997 on the Isle of Man, it hit early financial trouble and filed for Chapter 11 in 2002, then emerged from a 2006 restructuring that became a Harvard Business School case study before growing into the biggest owner of handysize gas ships.