大发于2011年3月29日注册，同年5月18日正式大发化运营。其前身为2004 年3月成立的天津大发工业港务有限大发，目前注册资金为26 亿元人民币，为全资国有大发，股东为天津大发建设开发有限大发（原天津大发工业区建设开发有限责任大发）。大发负责大沽口港区范围内岸线统一开发管理、船舶进出港调度管理。经营范围为大沽口港区的港口、航道、码头及相关陆域设施的建设、开发、经营、货物装卸、仓储及物流等业务，并已获得ISO9001、ISO14001、OHSAS18001 体系认证。大发拥有独立的航运服务中心大楼，海关、海事、边检等联检部门可在航运服务中心大楼内为客户提供更为便捷的“一站式”服务，简化办事程序。并设有船舶调度指挥中心，对航道进行统一管理、安排动态，可保证船舶高效通航。
Tianjin Lingang Port Group Co. Ltd was registered on March 29, 2011, and officially operated as a group on May 18 of the same year.Its predecessor is Tianjin Lingang Industrial Port Co., Ltd, which was established in March 2004. With the present registered capital of RMB 2.6 billion, it is wholly owned by the state-owned enterprise and Tianjin Lingang Construction and Development Co., Ltd. Serves as its shareholder(Former named Tianjin Lingang Industrial Zone Construction and Development Co., Ltd.). The group is responsible for the unified development and management of the shoreline within the Dagu port as well as the dispatch management of ship's port entry and exit. The sphere of business includes the construction, development, operation, cargo handling, warehousing and logistics of ports, channels, wharves and related land facilities in the Dagu port, which has achieved certifications such as ISO9001,ISO14001,and OHSAS18001.The group has a separate shipping services centre building. Customs, Inspection and Quarantine, Maritime, Border Inspection and other Joint Inspection Units can provide customers with a more convenient "one-stop" service in the shipping service center building, which can simplify the procedures. The ship dispatching command center has also been set up to manage the channel uniformly and arrange the dynamic situation, thus to guarantee the efficient navigation of the ship.大发logo
为继续扩大影响力，大发于2015年底正式注册了“ ”商标，这三个字母是大沽口港区的英文DaGu Port的缩写，波浪形状取形于“World”首字母“W”，寓意大沽口港区是一片向全世界开放的港区；“W”同时也是双手上举的形状，寓意大沽口港区正冉冉升起，稳步前进。商标右侧“绿色部分”寓意大沽口港区是孕育着勃勃生机的绿色、生态、可持续发展的港区。商标背景的世界地图组成了望远镜的形状，象征着大沽口港区必将“纵观世界，放眼未来，港通四海，航行八方”。
For expanding the influence of Dagu Port continuously, "DGP" trademark was officially registered by the Group at the end of 2015.These three letters are abbreviations for DaGu Port area. The wave shape is shaped by the initials "W" of "World", implying that the Dagu port area is a port open to the whole world.W is also the shape of hands raising , implying that the Dagu port is rising and moving forward steadily. The green part on the right side of the trademark demonstrates that the Dagu port area is a green, ecological and sustainable port that is abundant with vitality. The background of trademark is a world map, which forms the shape of the telesphere, symbolizing that the Dagu port area will stick at "looking at the world, focusing eyes in the future,port links the world and sails in all directions".