John J. McMullen & Associates

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John J. McMullen & Associates (JJMA) was an engineering firm in the United States specializing in naval architecture and marine engineering focused on the field of naval ship design. Founded in 1957, JJMA quickly grew in size, with offices in Alexandria, Virginia, New York, New York, and other locations in major U.S. cities. JJMA's main customers included the U.S. Navy, General Dynamics, Northrop Grumman, and several commercial shipbuilders and operators. In 1998 JJMA became employee-owned. JJMA was purchased by McLean, Virginia-based Alion Science and Technology in 2005, and is now Alion's JJMA Maritime Sector division.