GasLog Ltd. (GasLog) is a holding company. The Company and its subsidiaries are primarily engaged in the ownership, operation and management of vessels in the Liquefied natural gas (LNG) market. The Company operates in two segments: vessel ownership and vessel management. The Company provides maritime services for the transportation of LNG on a across the world basis and LNG vessel management services. The Company conducts its operations through its vessel-owning subsidiaries and through its vessel management services subsidiary. Its subsidiaries include GasLog Investments Ltd., GasLog Carriers Ltd., GasLog Shipping Company Ltd., GasLog Monaco S.A.M., GAS-one Ltd., GAS-seven Ltd., GAS-twelve Ltd., GAS-twenty one Ltd., GasLog Shipping Limited and Egypt LNG Shipping Ltd., among others. Its wholly owned fleet consists of approximately 20 LNG carriers, including over 11 ships in operation, over seven LNG carriers on order at Samsung and over two LNG carriers on order at Hyundai.