Leidos Gibbs & Cox | 10,528 followers on LinkedIn. Solving 21st Century Maritime Challenges with Quality and Integrity | Leidos Gibbs & Cox is an engineering and design firm specializing naval architecture, marine engineering, and consulting engineering. The firm is headquartered in Arlington, Virginia with offices in New York City; Chesapeake, Virginia; Newport News, Virginia; New Orleans, Louisiana; and Philadelphia, Pennsylvania. The firm is focused on growth in emerging maritime programs in systems engineering, platform design, sustainment and life-cycle extension for both government and commercial market sectors.