NAVSEA Portsmouth Naval Shipyard


FLC Region

Security Lab



Code 1223
Technology Transfer Office
Portsmouth, NH 03804-5000
United States

Laboratory Representative


Established by the Federal Government in 1800, Portsmouth Naval Shipyard (PNS) launched its first product, the 74-gun warship USS Washington, in 1815. During World War I, the PNS workforce expanded to nearly 5,000. At this time, PNS took on a new and important role-the construction of submarines-in addition to the overhaul and repair of surface vessels. World War II saw the civilian employment rolls swell to over 25,000. Over the course of World War II over 70 submarines were constructed at PNS, with a record four submarines launched on one day. Following World War II, PNS was the Navy's center for submarine design and development. The research submarine, USS Albacore, with its revolutionary "tear drop" shaped hull and round cross section, set the standard for all subsequent submarine hull design world-wide. PNS continued to build submarines until 1969, when the last submarine built in a public shipyard, the nuclear-powered USS Sand Lance, was launched. Today the Shipyard continues the tradition of excellence and service to the Navy and the nation by supplying the Submarine Fleet with high quality, affordable, overhaul, refueling and modernization work.


Portsmouth Naval Shipyard's primary mission is the overhaul, repair and modernization of Los Angeles Class submarines. Portsmouth Naval Shipyard provides the U.S. Navy's nuclear powered submarine fleet with quality overhaul work in a safe, timely and affordable manner. This includes a full spectrum of in-house support¿from engineering services and production shops, to unique capabilities and facilities, to off-site support¿all of which serves the multifaceted assortment of fleet requirements. Highly complex assignments ranging from a few days to over two years are routinely accomplished by experienced trades people at the Shipyard.

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