|Rank||Firm||Office location1||Purpose||Contracting activity||Contract amount2|
|1||Fluor Marine Propulsion LLC||Arlington||Naval nuclear propulsion work at Naval Nuclear Laboratory.||Naval Sea Systems Command (Washington, D.C.)||$13,072,285,773|
|2||Huntington Ingalls Industries Inc.||Pascagoula, Miss.||Construction of six DDG 51 class ships.||Naval Sea Systems Command (Washington, D.C.)||5,253,076,779|
|3||Bath Iron Works3||Bath, Maine||Construction of four DDG 51 class ships.||Naval Sea Systems Command (Washington, D.C.)||3,904,735,559|
|4||General Dynamics Mission Systems3||Taunton, Mass.||Common Hardware Systems 5th Generation.||Army Contracting Command (Aberdeen Proving Ground, Md.)||3,900,000,000|
|5||Northrop Grumman Systems Corp.4||Rolling Meadows, Ill.||Large Aircraft Infrared Counter Measures (LAIRCM) equipment and support.||Air Force Life Cycle Management Center (Wright-Patterson Air Force Base, Ohio)||3,600,000,000|
|6||Northrop Grumman Systems Corp.4||Rolling Meadows, Ill.||Sustainment, modernization production and development of LITENING targeting pod.||Air Force Life Cycle Management Center (Robins Air Force Base, Ga.)||1,310,000,000|
|7||General Dynamics Electric Boat3||Groton, Conn.||Management and technical services for installation, repair and maintenance of weapons for submarines.||Naval Surface Warfare Center (Philadelphia)||1,110,350,671|
|8||Knight Point Systems||Reston||Communications Capacity Services II||Defense Information Technology Contracting Organization (Scott Air Force Base, Ill.)||902,000,000|
|9||Science Applications International Corp.||Fairfield, N.J.||Global Time Program integrator contract.||Defense Logistics Agency Land and Maritime (Columbus, Ohio)||900,310,334|
|10||Huntington Ingalls Industries Inc.||Newport News||Management and technical services for installation, repair and maintenance of weapons for submarines.||Naval Surface Warfare Center (Philadelphia)||874,341,811|
|11||Northrop Grumman Systems Corp.4||Chantilly||Sustainment and modification of radar sensors, providing depot-level sustainment services for the Ballistic Missile Early Warning systems and PAVE Phased Array Warning systems radars.||Air Force Life Cycle Management Center (Peterson Air Force Base, Colo.)||866,000,000|
|12||Science Applications International Corp.||Reston||Production and delivery of integrated command, control, communications, computers, intelligence, surveillance and reconnaissance systems.||Space and Naval Warfare Systems Center Atlantic (Charleston, S.C.)||861,100,000|
|13||Oceaneering International Inc.||Chesapeake||Management and technical services for installation, repair and maintenance of weapons for submarines.||Naval Surface Warfare Center (Philadelphia)||827,674,072|
|14||Deloitte & Touche LLP||Arlington||Financial improvement and audit readiness.||Air Force District of Washington (Joint Base Andrews, Md.)||800,000,000|
|15||Orbital Sciences Corp.5||Chandler, Ariz.||Development of Launch System Prototype for the Evolved Expendable Launch Vehicle program.||Launch Systems Enterprise Directorate, Space and Missile Systems Center (Los Angeles Air Force Base, California)||791,601,015|
|16||Virginia Electric and Power Co.||Richmond||General Services Administration public utility contract for electric and energy management services for Hampton Roads and surrounding areas in Virginia.||Naval Facilities Engineering Command Mid-Atlantic (Norfolk)||770,000,000|
|17||Northrop Grumman Systems Corp.4||Bethpage, N.Y.||System upgrades for the EA-18G system configuration sets, Airborne Electronic Attack and Electronic Warfare systems for Australia.||Naval Air Warfare Center Weapons Division (Point Mugu, Calif.)||697,029,788|
|18||Insight Public Sector Inc.||Chantilly||Provide Microsoft software licenses, software assurance and cloud offerings to the Department of Navy.||Space and Naval Warfare Systems Center Pacific (San Diego)||653,210,000|
|19||Leidos Inc.||Reston||Single-point solutions for the F-16 advanced avionics intermediate shop.||Air Force Sustainment Center (Hill AFB, Utah)||620,000,000|
|20||Range Generation Next LLC||Dulles||Engineering and technical services.||U.S. Army Contracting Command (Redstone Arsenal, Ala.)||502,224,668|
1 Location of office that was awarded contract. Does not indicate headquarters. Source: U.S. Department of Defense
2 Value at time of announcement.
3 Subsidiary of Falls Church-based General Dynamics.
4 Subsidiary of Falls Church-based Northrop Grumman Corp.
5 Orbital ATK was purchased last year by Northrop Grumman. It is now known as Northrop Grumman Innovation Systems
Note: Includes U.S. Department of Defense contracts from 2018 worth at least $500 million awarded to Virginia-based companies, divisions and subsidiaries of Virginia companies; and Virginia-based divisions of companies outisde Virginia. Excludes mutli-award contracts and contract modifications.