Sailors and Portsmouth Employees overlook the arrival of a waterborne  US Submarine

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About Us

   Portsmouth Naval Shipyard (PNS) employs a civilian workforce of top-tier professionals to safely overhaul, repair, and modernize the U.S. Navy's nuclear-powered attack submarine fleet, specifically Los Angeles and Virginia-class submarines. We provide 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. For more information about what is currently going on, please check out monthly publication, The Periscope.



PNS is centrally located at the southernmost tip of Maine in downtown Kittery. Located about 1 hour from Boston Massachusetts, Portland Maine, and Manchester New Hampshire, PNS has something for everyone. In addition to its east coast location, the Portsmouth Naval Shipyard has a detachment in San Diego California.

New England with a red star over where the Portsmouth Naval Shipyard is located












Contact Us


Telephone:  207-438-1000

Address: Portsmouth Naval Shipyard

Kittery, ME 03904