General Dynamics Electric Boat has been awarded a $255 million contract modification by the U.S. Navy for submarine support services, according to a Department of Defense announcement. The contract covers engineering and technical support for both Virginia-class and Columbia-class submarines.
The work will be performed primarily at Electric Boat's facilities in Groton, Connecticut, and Quonset Point, Rhode Island, with an expected completion date of July 2027. The contract modification is a cost-plus-fixed-fee arrangement, which allows for adjustments based on actual costs incurred.
Electric Boat is the primary builder of the U.S. Navy's nuclear-powered submarines and has been involved in the design and construction of the Columbia-class ballistic missile submarines, which are set to replace the aging Ohio-class fleet. The Virginia-class attack submarines are also a key part of the Navy's undersea warfare capabilities.
The contract was not competitively procured, as Electric Boat is the sole designer and builder of these submarine classes. The Navy obligated $100 million in fiscal 2026 funding at the time of the award.
