STIDD Submersible Boats

Welcome to STIDD Submersible Boats STIDD Sub-Boats, outfitted with the latest technical innovations, redefine what is possible for SOF units combating both asymmetric and traditional maritime threats.


About STIDD Submersible Boats

STIDD Systems was founded in 1991 as a manufacturer of Government and Commercial Marine Seating. In 1998 it began development of its first Military Submersible. Today its customers include the United States Marine Corps, Special Operations Command, Coast Guard and Coalition Forces.

Our Products

Over the past 20 years, STIDD built its Submersible line and flagship product, the Diver Propulsion Device (DPD), around the basic idea that divers would prefer riding a vehicle instead of swimming.

Today, STIDD focuses on another simple, but transformative goal: design, develop, and integrate the most advanced Precision Navigation, Control and Automation Technology available into the DPD to make that ride easier, more effective, and when desired . . . RIDERLESS!

Our Facility

STIDD Systems, Inc. Occupies a 1.5 acre shipyard with 62,000 square feet of computerized manufacturing facilities, design and administrative offices located on the Greenport, Long Island harbor, approximately 90 statute miles due east of New York City and 16 nautical miles southwest of New London, CT.

STIDD Systems’ facility has been in continuous use as a shipyard since 1831. In World War I, the shipyard built 60 ft. patrol boats, and during World War II, the yard set Navy production records, delivering 440 136 ft. minesweepers and 1100 landing craft with a labor force of 7500 workers on three shifts .

STIDD Systems opened its Surface and Underwater Mobility Training and Evaluation Facility located in Marathon Key Florida in 2003. The “STIDD SOUTH” facility is approximately 47 miles North of Key West and 112 miles south of Miami.
Marathon provides an ideal location for not only conducting sea trials of STIDD’s Surface and Underwater Mobility Platforms but also gives prospective customers and new users a professional environment to evaluate our craft.

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Contact Details


220 Carpenter Street
New York
New York
NY 11944
United States

Main #: +1-631-477-2400 x 158

Fax #: +1-631-477-1095