|Traded as||NYSE: NOC
S&P 500 Component
|Headquarters||2980 Fairview Park Drive,
West Falls Church, Virginia, United States
(Falls Church mailing address)
Missile defense systems
Advanced electronic sensors and systems
|Revenue||US$24.661 billion (2013)|
|US$3.123 billion (2013)|
|Profit||US$1.952 billion (2013)|
|Total assets||US$26.381 billion (2013)|
|Total equity||US$10.62 billion (2013)|
Number of employees
Northrop Grumman Corporation is an American global aerospace and defense technology company formed by Northrop's 1994 purchase of Grumman. The company was the fifth-largest defense contractor in the world as of 2015. Northrop Grumman employs over 68,000 people worldwide. It reported revenues of $25.218 billion in 2012. Northrop Grumman ranks No. 72 on the 2011 Fortune 500 list of America's largest corporations and ranks in the top ten military-friendly employers. It is headquartered in West Falls Church, Virginia.
- 1 Business sectors
- 2 History
- 3 Corporate governance
- 4 Accolades and criticism
- 5 See also
- 6 References
- 7 External links
Northrop Grumman is made up of four business sectors: Aerospace Systems, Electronic Systems, Information Systems and Technical Services.
Aerospace Systems, headquartered in Redondo Beach, California produce aircraft, spacecraft, high-energy laser systems and microelectronics for the US and other nations. This includes surveillance and reconnaissance, protected communications, intelligence, battle management, strike operations, electronic warfare, and missile defense to Earth observation, space science and space exploration. The B-2 Spirit strategic bomber, the E-8C Joint STARS surveillance aircraft, the RQ-4 Global Hawk, and the T-38 Talon supersonic trainer, are used by the US Air Force. The US Army uses Northrop Grumman's RQ-5 Hunter unmanned air vehicle, which have been in operational use for more than 10[timeframe?] years. The U.S. Navy uses Northrop Grumman-built aerial vehicles such as the BQM-74 Chukar, RQ-4 Global Hawk based BAMS UAS, Grumman C-2 Greyhound, Grumman E-2 Hawkeye, and the EA-6B Prowler. Northrop Grumman provides major components and assemblies for different aircraft such as F/A-18 Hornet, F/A-18E/F Super Hornet and the EA-18G Growler.
As of 2006, Northrop Grumman intended to bid for the U.S. Air Force's next-generation strategic bomber project. Though it has not built a large manned aircraft since wrapping up B-2 Spirit production in the 1990s, the company has "been working hard to turn that perception around, with the skills and capabilities that back it up." It continues to build the RQ-4 Global Hawk, with many of the same long endurance and sensor technologies that are required for bombers.
Northrop Grumman partnered with EADS from the mid-2000s to offer the KC-30 Multi Role Tanker Transport aircraft in the U.S. Air Force's KC-X tanker competition. In February 2008 the U.S. Air Force chose KC-30, but in September 2008 the Defense Department stopped the tanker program and in March 2010, Northrop Grumman announced it was withdrawing from the competition.
From 2013, Northrop Grumman participates in the DARPA Tactically Exploited Reconnaissance Node(TERN) program, and received $2.9 million for Phase 1 and $19 million for Phase 2. The TERN program attempts to launch and recover a UAV from mid-size ships to provide long distance intelligence gathering.
|This section does not cite any references or sources. (December 2014)|
Northrop Grumman Electronic Systems, headquartered in Linthicum, Maryland creates military radar, sensors and related products, including C4I radar systems for air defense, Airspace Management radar systems such as AMASS, and battlefield surveillance systems like the Airborne Reconnaissance Low (ARL). Tactical aircraft sensors include the AN/APG-68 radar, the AN/APG-80 advanced agile beam fire control radar Advanced Electronically Scanned Array (AESA), and the scalable agile beam radar (SABR) AESA upgrade for the F-16 Fighting Falcon, the AN/APG-77 AESA radar for the F-22 Raptor, and the AN/APG-81 AESA radar for the F-35 Lightning II, and the AN/AAQ-37 electro-optical Distributed Aperture System (DAS) for the F-35, and the APQ-164 Passive Electronically Scanned Array (PESA) radar for the B-1 Lancer. Electronic Systems produces and maintains the AWACS aerial surveillance systems for the U.S., the United Kingdom, NATO, Japan, and others. Northrop Grumman is the prime contractor for the development and integration of the Air Force's $2-billion Multi-Platform Radar Technology Insertion Program. Many other smaller products are made by Northrop Grumman, such as night vision goggles and secure communications equipment.
Information Systems, headquartered in McLean, Virginia, supports the U.S. ballistic missile program, integrates various command, control and intelligence systems and provides technical and management services to governmental and military customers, all with an emphasis on cyber security.
The Technical Services sector headquartered in Herndon, Virginia, works on logistics solutions "from modernization and sustainment, to supply chain management, training and simulation, and automated test equipment". Vinnell, a Technical Services Northrop Grumman subsidiary, provides training and communications for the military. In 2003, it landed a $48 million contract to train the Iraqi Army. In 2005 the company won a $2 billion contract with Virginia to overhaul most of the state's IT operations. Later that year, The United Kingdom paid $1.2 billion in a contract with the company to provide maintenance of the country's defensive radar.
Affiliated companies and partners
Remotec, a subsidiary, is the foremost manufacturer of remote control vehicles for explosive ordnance disposal and hazardous material handling. A UK-based subsidiary, Park Air Systems, provides VHF and UHF ground-to-air communications systems for the civil and defense markets. Northrop Grumman has also worked closely with Antenna Associates, Inc., a leading manufacturer of Identification friend or foe (IFF)/Secondary Surveillance Radar (SSR) antennas located in Massachusetts.
In August 2007, Northrop Grumman acquired Scaled Composites in which it had previously owned a 40% stake.
In 2008, Northrop Grumman began working with DHS Systems LLC, manufacturer of the Deployable Rapid Assembly Shelter (DRASH) in New York, as part of the U.S. Army's Standard Integrated Command Post System program.
In 1994, Northrop Aircraft merged with Grumman Aerospace, famous for building the Apollo Lunar Module to create Northrop Grumman (NG). In 1996, the new company acquired Westinghouse Electronic Systems, a major manufacturer of radar systems, and Xetron Corporation. In 1997, the defense computer contractor Logicon was added, which had acquired Geodynamics Corporation in March 1996 and Syscon Corporation in February 1995.
In 1998, a merger between Northrop Grumman and competitor Lockheed Martin was not approved by the U.S. government, slowing the consolidation of the defense industry.[dubious ] The same year it acquired Inter-National Research Institute Inc. In 1999, the company acquired Teledyne Ryan, developer of surveillance systems and unmanned aircraft, California Microwave, Inc., and the Data Procurement Corporation. On March 19, 1999, Northrop Grumman announced to restate its fourth-quarter results downward to a net loss because of problems related to its dealings with start-up satellite launch company Kistler Aerospace Corp.[vague] In 1999, Northrop Grumman and SAIC created AMSEC LLC as a joint venture, which grew "from $100 million in revenue in 2000 to approximately $500 million in fiscal year 2007."
In 2000, NG acquired Federal Data Corporation, Navia Aviation As, Comptek Research, Inc.,and Sterling Software, Inc.
In 2001, the company acquired Litton Industries, a shipbuilder and defense electronics systems provider for the U.S. Navy. During the acquisition process, a new Delaware holding company, NNG, Inc., was formed, which merged with Northrop Grumman through a one-for-one common shares exchange in April 2001. Both Northrop Grumman and Litton became subsidiaries of the new holding company. The original Northrop Grumman Corporation then changed its name to "Northrop Grumman Systems Corporation"; the holding company, NNG, Inc., changed its name to "Northrop Grumman Corporation". Later that year, Newport News Shipbuilding was added.
On November 1, 2001, Northrop Grumman restated its third-quarter profit after stopping work on two ships for American Classic Voyages, which filed for bankruptcy protection.
In 2002, Northrop Grumman acquired TRW Inc., which had acquired Braddock Dunn & McDonald (BDM) in 1997, and became the Space Technology sector based in Redondo Beach, CA, and the Mission Systems sector based in Reston, VA, with sole interest in their space systems and laser systems manufacturing. The Aeronautical division was sold to Goodrich, and the automotive divisions were spun off and retained the TRW name.
On January 1, 2006, Northrop Grumman opened its business sector called 'Technical Services'. Northrop Grumman and Boeing collaborated on a design concept for NASA's upcoming Orion spacecraft (previously the Crew Exploration Vehicle), but the contract went to rival Lockheed Martin on August 31, 2006.
In 2007, Northrop Grumman created 'National Workforce Centers' as an alternative to Offshoring. Locations are Auburn, Alabama; Corsicana, Texas; Fairmont, West Virginia; Helena, Montana; Johnstown, Pennsylvania; and Lebanon, Virginia. The Rapid City, South Dakota location closed in January 2012.
In July 2008, three of four Northrop Grumman employees (Thomas Howes, Marc Gonsalves and Keith Stansell) were freed during Operation Jaque after five years of captivity following their aircraft crash in the Colombian jungle. The fourth employee Tom Janis had been killed by the FARC shortly after the crash in 2003.
In January 2008, Northrop Grumman combined its Newport News and Ship Systems sectors into a new business unit named Northrop Grumman Shipbuilding. On March 31, 2011, this was spun off as Huntington Ingalls Industries Inc (NYSE: HII).
2010 to present
From 1990-2003, before the merger with Grumman in 1994, Kent Kresa was the CEO of the company, who led the serial-acquisition strategy with a total of 15 additional acquisitions from 1994-2003, including Litton, Logicon, Westinghouse's defense electronics business, Ryan Aeronautical and Newport News Shipbuilding, and TRW. He retired in 2003 at age 65.
Until 2010 headquartered in Century City, Los Angeles, California, it announced plans on January 4, 2010 to move to the Washington Metropolitan Area by 2011, to be closer to government customers. CEO Wesley Bush stated that the company needed to be located close to Capitol Hill lawmakers and officials from intelligence and military communities. Northrop Grumman considered sites in Washington, DC and in suburbs in Maryland and Virginia. The Los Angeles Business Journal wrote "In a way, the announcement was not a surprise" due to the trend of aerospace companies moving to the DC area, the fact that the new CEO is from West Virginia and that CEOs often move corporate headquarters to places that they want the headquarters located. A Los Angeles area economic development consultant described the move announcement as a "structural failure at all levels for Los Angeles County."
District of Columbia economic development officials were "pitching the city's urban hipness and proximity to Capitol Hill power brokers" to Northrop Grumman.Maryland promoted its highly educated workforce and its large number of federal facilities, while Virginia marketed itself as a state with relatively low taxes.
In July 2010, the company announced its purchase of an existing building in Fairfax County and its move in the summer of 2011. It planned to consolidate its Century City headquarters and its existing Arlington County, Virginia offices into the new headquarters. It employed about 40,000 in the Washington DC metropolitan area, including DC and surrounding Maryland and Virginia.
Accolades and criticism
Northrop Grumman was named Forbes's Company of the Year in 2002. Forbes's announcement credited the company with "master[ing] the art of innovation." Since then, it no longer appears on their list of America's 400 Best Big Companies.
Many members of the U.S. government have attended company events and spoken highly of the company and its contributions, for example John McCain. In December 2007, Northrop Grumman Corporation was awarded the prestigious Ron Brown Award for Corporate Leadership, the only Presidential award recognizing companies for outstanding achievement in employee and community relations.
In 2000, Northrop Grumman was designated a Primary Responsible Party under federal Superfund laws at 13 hazardous waste sites and under state Superfund laws at eight sites. The corporation has also been linked to 52 superfund toxic waste sites. Based on 2008 data, Northrop Grumman was the 62nd-largest corporate producer of air pollution in the United States, per the Political Economy Research Institute of the University of Massachusetts Amherst. Northrop Grumman facilities released more than 23,798 pounds of toxic chemicals into the air in that year.
In 2002, the Bethpage Community Park in Bethpage, New York, owned by the company until the 1960s, was closed due to soil contamination with polychlorinated biphenyls (PCBs). The company dumped cadmium, arsenic, chromium-tainted sludge, solvents, paints and PCBs at the site between 1949 to 1962. Additionally, two toxic chemical plumes centered under Bethpage Community Park and other surrounding land formerly owned by Grumman or Northrop Grumman have spread to under neighboring houses. In November 2013, the Bethpage Water District filed a multimillion dollar lawsuit against Northrop Grumman in Federal Court for the Eastern District of New York for contaminating the groundwater in Bethpage.
In 2003, the company was among 84 parties with which the United States Environmental Protection Agency, the U.S. Department of Justice, and the state of New York reached an estimated US$15 million settlement for the rehabilitation of the Mattiace Petrochemical Company Superfund site in Glen Cove, Long Island. In the same year, Northrop Grumman agreed to pay $33,214 after EPA inspectors found hazardous waste violations at the Capistrano test site.
As a response to many of the previous claims, the company has stood up as an organization for social responsibility. In 2008, Northrop Grumman launched its Environmental Sustainability program and an EHS Leadership Council, to advance its commitment to environmental performance both internally and externally . The Greenhouse Gas Inventory Project was launched to accurately quantify company-wide greenhouse gas emissions and to reduce the carbon footprint of Northrop Grumman operations, in anticipation of upcoming regulations.
In October 2010 the company was named one of Computerworld's Top 12 Green-IT Organizations for its large-scale data center migration effort.
Political contributions and governmental ties
From 1990-2002, Northrop Grumman contributed $8.5 million to federal campaigns. According to PAC summary data compiled by Source Watch, the company gave US$1,011,260 to federal candidates in 2005-2006 election cycle, compared to $10,612,837 given by all defense contractors in the same cycle. This donation amount was only behind that of General Dynamics and Lockheed Martin in the defense industry. The majority of the contributions, 63%, went to Republicans. Former Northrop Grumman Electronics Systems chief James G. Roche served as Secretary of the Air Force for two years under George W. Bush. Roche would eventually be nominated to head the Army, but would be forced to withdraw his nomination among accusations of mismanaging a contract with Boeing and of failing to properly handle the Air Force sexual assault scandals of 2003. According to CorpWatch, "at least seven former officials, consultants, or shareholders of Northrop Grumman" have held posts "in the Bush administration...including Deputy Secretary of Defense Paul Wolfowitz, Vice-Presidential Chief of Staff I. Lewis Libby, Pentagon Comptroller Dov S. Zakheim, and Sean O’Keefe, director of NASA." Wolfowitz and Libby have both since left the government amid scandals.
In the late 1980s and early 1990s Northrop was the target of several high-profile criminal and civil cases.
In 1995, Robert Ferro, an employee for TRW Inc., a Northrop Grumman subsidiary, discovered that satellite components manufactured for the U.S. Air Force (USAF) were faulty and likely to fail in operation. TRW suppressed Ferro's report of the problem and hid the information from the USAF, even after a satellite in space equipped with the faulty components experienced serious anomalies. Ferro later sued Northrop Grumman in federal court under the federal whistle-blower law.
In 1999 , the company was sued for knowingly giving the Navy defective aircraft. This suit sought $210 million in damages and was ongoing as of 2004. Ten years later, on April 2, 2009, Northrop Grumman agreed to pay $325 million to settle the suit. Ferro was awarded $48.8 million of the settlement. Northrop Grumman stated about the settlement that, "it believed that TRW had 'acted properly under its contracts' and that the company had substantive defenses against the claims." In 2001, federal investigators probed NG for fraud of more than $100 million,systematic overcharging for radar jammers and other high-tech devices used in the B-1 bomber, the F-15 fighter and the B-2 Stealth bomber. In 2003, the company was sued for overcharging the U.S. government for space projects in the 1990s. Northrop Grumman paid $111.2 million to settle out of court.
From August 25 through September 2, 2010, Virginia's computer system operated by NG under a $2.4 billion contract went into a week-long computer outage resulting in as many as 45,000 citizens not being able to renew their drivers licenses prior to their expiration. Computer systems for 26 of the state's 89 agencies were affected and Governor Bob McDonnell announced that some data may be permanently lost. In 2010 Northrop Grumman apologized for the outage and said to fund an investigation. Northrop Grumman had contributed approximately $75,000 to Bob McDonnell's election campaign.
International Traffic in Arms Regulations (ITAR) Violations
U.S. State Department investigators found that Litton Industries, a subsidiary acquired by Northrop Grumman in 2000, had provided portions of source code used by guidance and navigation system interfaces aboard Air Force One to a company in Russia in 1998. Northrop Grumman agreed to pay a $15 million fine for 110 violations, occurring between September 1998 and November 1998, of the Arms Export Control Act and the International Traffic in Arms Regulations (ITAR).
Additionally, documents filed by the State Department state that between 1994 and 2003, Northrop Grumman failed to notify the U.S. State Department about the computer guidance systems also being transferred to Angola, Indonesia, Israel, China, Ukraine and Yemen.
- Northrop Grumman RQ-180 Unmanned Aircraft System
- Top 100 US Federal Contractors - $19.7 billion in FY2009
- "NORTHROP GRUMMAN CORP /DE/ 2013 Annual Report Form (10-K)". United States Securities and Exchange Commission. 3 February 2014.
- "NORTHROP GRUMMAN CORP /DE/ 2014 Q1 Quarterly Report Form (10-Q)" (XBRL). United States Securities and Exchange Commission. 23 April 2014.
- . GoogleFinance
- "SIPRI Top 100 Defence Contractors." Stockholm International Peace Research Institute.
- "Northrop Grumman Rises 10 Spots on DiversityInc's 2011 Top 50 Companies for Diversity List (NYSE:NOC)". Irconnect.com. March 10, 2011. Retrieved July 25, 2012.
- "NorthropGrumman-Google Finance". Google Finance.
- "Fortune 500 2011". CNN.
- "Northrop Grumman Ranks in the Top Ten Military Friendly Employers (NYSE:NOC)". Irconnect.com. December 21, 2010. Retrieved July 25, 2012.
- "Northrop Grumman: About Us, Business sectors." Northrop Grumman. Retrieved: November 18, 2013.
- Northrop Grummann (n.d.). "About Us, Business sectors: Aerospace Systems". Northrop Grummann Corporation. Retrieved 5 December 2014.
- Tomkins, Richard. "Northrop Grumman delivers first shipset for Australian Growler" UPI, March 26, 2015.
- Christie, R. "Northrop Grumman Hopes for Big Role in DoD Bomber Plan." The Wall Street Journal. July 10, 2006.
- "Northrop Grumman KC-30 marketing web site". Northrop Grumman. Archived from the original on February 12, 2007. Retrieved February 16, 2007.
- "Air Force Posts KC-X Request for Proposals -news release". Af.mil. 30 January 2007. Archived from the original on July 19, 2012. Retrieved 25 July 2012.
- MoneyCNN.com EADS Shares Surge on $35B US Contract at the Wayback Machine (archived March 27, 2011)
- Ostrower, Jon. "Northrop Grumman declines to bid on latest KC-X RFP." Flight International, March 9, 2010.
- "NASA Selects Companies for Heavy-Lift Vehicle Studies". NASA. Retrieved November 8, 2010.
- "HR0011-13-C-0096." fbo.gov, 6 September 2013. Retrieved: 8 September 2013.
- "Tactically Exploited Reconnaissance Node (TERN) – Phase II". FBO.gov. September 22, 2014. Retrieved 27 September 2014.
- Keller, John. "Archive: Launching long-endurance UAVs from small ships." militaryaerospace, September 29, 2014. Retrieved: September 29, 2014.
- Trimble, Stephen (26 March 2015), "DARPA selects two firms to compete for sea-based UAV", Flightglobal (Reed Business Information), retrieved 27 March 2015
- "DARPA’s New TERN Program Aims for Eyes in the Sky from the Sea". DARPA. 1 March 2013. Retrieved April 11, 2013.
- "About us: technical services." Northrop Grumman Corporation. Retrieved: December 8, 2014.
- "$48 Million To Train Iraqi Army". Defense News. 7 July 2003.[dead link]
- McDougall, Paul (November 15, 2005). "Virginia Taps Northrop Grumman for $2 Billion IT Overhaul". Information Week. Retrieved April 4, 2006.[dead link]
- "Britain Issues $1.2B E-3D AWACS Support Contract". Defense Industry Daily. August 16, 2005. Retrieved April 4, 2006.
- Jourdan, Max. "Protecting people or profit?" BBC News, December 14, 2004. Retrieved: April 4, 2006.
- Quintanilla, Jacob. "Archive: The "Invisible" U.S. War in Colombia." Resource Center of the Americas, June 29, 2004. Retrieved: April 5, 2006.
- "NG, DHS Technologies to support SICPS/TMSS." United Press International, June 18, 2008.
- Parker 2013, pp. 25, 93.
- Parker 2013, pp. 93–94.
- Security and Exchange Commission (24 July 2000). "Northrop Grumman Corp. announces restatement". SEC.gov.
- "Stryker Operating Results for Quarter and Year Ended December 31, 1999".
- Pike, John. "Global Security: Mergers". Retrieved April 5, 2006.
- "Northrop Grumman Buys Builder of SpaceShipOne". SPACE.com. July 20, 2007. Retrieved July 25, 2012.
- "Northrop Grumman’s National Work Force Center Initiative". Retrieved April 22, 2009.[dead link]
- "Rapid City". Keloland.com. December 6, 2011. Retrieved July 25, 2012.
- "Northrop Grumman Statement to News Media Regarding the Release of Our Employees in Colombia". Irconnect.com. July 3, 2008. Retrieved July 25, 2012.
- "Northrop Grumman Announces Key Leadership and Organizational Changes." Northrop Grumman, January 14, 2008.
- Jacobs, Karen. "Northrop completes spin-off of ship business." Reuters, March 31, 2011.
- Military.com (July 4, 2013). "Northrop Fends Off Lockheed to Win Big AF Contract". Military.com.
- Kremer, Ken (July 26, 2014). "James Webb Space Telescope’s Giant Sunshield Test Unit Unfurled First Time". Universe Today.
- Lubove, Seth (January 6, 2003). "Company of the Year: Northrop—We See You, Saddam". Forbes. Retrieved August 24, 2011.
- "Northrop's Sugar to Retire; Wesley Bush Named Chief (Update2)". Bloomberg. September 16, 2009.
- "Northrop Grumman Selects Falls Church Location for New Corporate Office (NYSE:NOC)." Northrop Grumman. July 12, 2010. Retrieved: September 6, 2011. "[...]2980 Fairview Park Drive, Falls Church, Va.[...]"
- "Jefferson CDP, Virginia." U.S. Census Bureau. Retrieved September 6, 2011.
- ""Company Locations: Northrop Grumman Corporation 2980 Fairview Park Drive Falls Church, VA 22042." Northrop Grumman. Retrieved: September 6, 2011.
- Hyland, Alexa. "SoCal’s Aerospace Sector Still Has Lots of Lift[dead link]." Los Angeles Business Journal. January 11, 2010. Retrieved January 10, 2010.
- "Company Locations." Northrop Grumman. Retrieved May 12, 2009.
- "The Ticker." The Washington Post, January 4, 2010. Retrieved January 4, 2010.
- Crowe, Deborah. "Northrop to Move Corporate Office to D.C.[dead link]." Los Angeles Business Journal. January 4, 2010. Retrieved January 10, 2010.
- Proctor, Charles. "Northrop Flew Under the Radar." Los Angeles Business Journal. January 11, 2010. Retrieved: January 10, 2010.(subscription required)
- Haynes, V. Dion. "D.C. area jurisdictions vie to become new home of Northrop Grumman headquarters." Washington Post, January 11, 2010. Retrieved: February 13, 2010.
- "Forbes Names Northrop Grumman Company of the Year". Forbes. December 19, 2002. Retrieved April 4, 2006.
- "America's Best Big Companies". Forbes. 2006. Retrieved April 4, 2006.
- Northrop Grumman (March 20, 2006). Northrop Grumman Becomes Co-pilot for NASA's Great Moonbuggy Race. Press release.
- Northrop Grumman (March 31, 2006). Northrop Grumman Makes $25,000 Donation to Boys and Girls Club of Annapolis and Anne Arundel County. Press release.
- "Northrop Grumman Employees Charity Organization". Reading to Kids. 2005. Retrieved April 4, 2006.
- "Photo Release -- Sen. John McCain Thanks Northrop Grumman Shipbuilders at Commissioning of Aegis Destroyer Halsey (DDG 97)." Northrop Grumman press release, August 1, 2005.
- The Ron Brown Award for Corporate Leadership[dead link]
- "Center for Public Integrity analysis of EPA documents". Publicintegrity.org. Retrieved July 25, 2012.
- "Political Economy Research Institute". Peri.umass.edu. Retrieved July 25, 2012.
- Dooley, Emily (April 1, 2013). "State to treat pollution plume in Bethpage". Newsday. Retrieved April 7, 2014.
- Dooley, Emily (November 18, 2013). "Bethpage Water District to sue Northrop Grumman over contamination". Newsday. Retrieved April 7, 2014.
- "Environmental Protection Agency". Yosemite.epa.gov. June 19, 2003. Retrieved July 25, 2012.
- "Environmental Protection Agency". Yosemite.epa.gov. Retrieved July 25, 2012.
- Corporate social responsibility at the Wayback Machine (archived September 28, 2011)
- "The Top Green-IT Organizations: Green from the ground up". Computerworld. Retrieved July 25, 2012.
- Northrop Grumman. CorpWatch.org
- "Defense PAC Contributions". Opensecrets.org. June 4, 2007. Retrieved July 25, 2012.
- "Northrop PAC Contribution". Opensecrets.org. Retrieved July 25, 2012.
- Los Angeles Times (11 March 2004). "US: Roche Bails Out for Top Army Job Amid Scandal". CorpWatch.org.
- "Company Profile: Northrop Grumman." Corpwatch. Retrieved: December 6, 2014.
- "US: Court Documents Unsealed in Northrop Grumman Case." CorpWatch, April 22, 2004. Retrieved: December 5, 2014.
- Flynn, Michael (2004). "Northrop Grumman". Right Web Profiles. Retrieved April 4, 2006.
- "Scientist blew whistle on faulty military satellite parts; Northrop Grumman pays $325 million to settle case." Phillips & Cohen LLP Press Release, April 2, 2009.
- Drew, Christopher. "Military Contractor Agrees To Pay $325 Million To Settle Whistle-Blower Lawsuit." The New York Times, April 3, 2009, p. B4.
- Corfman, Thomas A. "Feds probe Northrop in defense fraud case." Chicago Tribune, August 30, 2001. Retrieved: December 5, 2014.
- Merle, Renae (August 9, 2003). "Northrop Settles Billing Case: Shipbuilding Unit Allegedly Overbilled U.S. by $72 Million". The Washington Post. Retrieved April 4, 2006.
- "Northrop Grumman pays $111 million to settle qui tam case against recent acquisition, TRW." Phillips and Cohen Press Release, June 9, 2003.
- Helderman, Rosalind and Anita Kumar (September 2, 2010). "Computer crash has tech world watching". The Washington Post. p. B1.
- Kumar, Anita (September 2, 2010). "McDonnell: Some data may be lost as a result of computer outage". The Washington Post. Retrieved September 3, 2010.
- Schapiro, Jeff E. and Peter Bacque (September 3, 2010). "Northrop Grumman regrets computer outage". Richmond Times-Dispatch. Retrieved September 3, 2010.[dead link]
- "Northrop Grumman and the myth of privatization". The Washington Post. August 31, 2010. Retrieved September 3, 2010.
- "Consent Agreement, 2008: Northrop Grumman Corporation". U.S. Department of State, March 14, 2008.
- Ryan, Jason. "Air Force One Guidance Systems Allegedly Sent to Russia." ABC News, April 18, 2008.
- Parker, Dana T. Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II. Cypress, California: Dana T. Parker Books, 2013. ISBN 978-0-9897906-0-4.
|Wikimedia Commons has media related to Northrop Grumman.|
- Northrop Grumman web site
- Northrop Grumman jobs
- Northrop Grumman product list
- Interview with Northrop Grumman CEO, Feb 12, 2006.
- "Patents owned by Northrop Grumman". US Patent & Trademark Office. Retrieved December 6, 2005.
- Park Air Systems (UK based subsidiary)