Mantech Advanced Systems International, Inc.
Mantech Advanced Systems International, Inc. is a subsidiary of ManTech International Corporation, providing a wide range of technology solutions and services to support national security missions across the U.S. government. The company specializes in areas such as systems engineering, software development, cybersecurity, and program management for defense, intelligence, and federal civilian agencies. As a large business prime contractor, Mantech holds numerous contract vehicles and has received substantial federal contract awards to deliver specialized expertise and technical capabilities to government customers. The company's work spans critical domains including IT modernization, enterprise IT, mission software systems, analytics, defense, and federal civilian solutions.
Through its prime and subcontract awards, Mantech has provided diverse services including engineering support for naval aviation programs, IT operations and maintenance for transportation security systems, cybersecurity monitoring for the Department of Justice, and data readiness services for defense artificial intelligence initiatives. The company has secured major contracts with agencies such as the Navy, Air Force, Defense Health Agency, and Department of Homeland Security. Notable awards include a $622 million task order for training-related services from the Army, a $261 million order for technical support to Air Force combat and spectrum warfare operations, and multiple task orders exceeding $10 million each for IT support to agencies like the Consumer Financial Protection Bureau. Mantech frequently partners with other large contractors like Booz Allen Hamilton and SAIC, as well as small businesses, to deliver comprehensive solutions. These awards typically do not have set-aside designations, as Mantech competes as a large business.
Mantech's involvement in federal grant programs appears more limited, with most activity occurring as a subrecipient. The company has provided natural resource management and conservation services at Vandenberg Air Force Base through subgrants from Colorado State University. This work included tasks such as threatened and endangered species management, habitat restoration, invasive species control, and wetland monitoring in support of the base's Integrated Natural Resources Management Plan. Mantech's role involved making programmatic decisions and recommendations based on their expertise with the base's ecosystems, coordinating directly with Air Force personnel, and adhering to federal regulations governing species and habitat management on military lands. The company has also provided software and system maintenance for civil registration programs at the state level, supporting public health initiatives funded by federal grants.
Mantech holds several significant Indefinite Delivery Vehicles (IDVs) that enable it to compete for and receive task orders across multiple agencies. These include a $900 million IDIQ with the Air Force Life Cycle Management Center for engineering and simulation services, a $487 million Blanket Purchase Agreement with the Department of Justice for IT support services, and a $250 million contract with the Naval Air Warfare Center for rapid prototyping and systems integration. The company is also a holder of government-wide acquisition contracts like Alliant II and ASTRO, allowing it to provide IT and engineering services across federal agencies. Additionally, Mantech was awarded positions on the $60.7 billion VA T4NG2 contract for health IT solutions and a $4.5 billion Air Force contract for security services supporting special access programs. These vehicles demonstrate Mantech's broad capabilities and strong positioning to support diverse government requirements in technology, engineering, and mission support services.
JY2BDT2K58Z6 541512
Not listed 2251 Corporate Park Dr, Herndon, VA 20171, USA
4/11/02 11/6/25 Northrop Grumman Systems Corporation
Northrop Grumman Systems Corporation, doing business as Defense Systems Sector, is a subsidiary of Northrop Grumman Corporation. It provides a range of products and services to support defense, federal civilian agency, intelligence community, and commercial aerospace programs.
As a prime contractor, Northrop Grumman Systems Corporation has delivered cable assemblies, electrical components, software licenses, engineering services, satellite communications support, tactical ground station capabilities, and training systems under contracts from agencies including the Air Force, Army, Navy, Defense Logistics Agency (DLA), and Missile Defense Agency. Major partners have included CDM Electronics Inc. and Peraton Inc. Several awards have involved no set-aside provisions. As a subcontractor, Northrop Grumman Systems Corporation has provided inertial measurement units, platform engineering services, gateway portal software licenses, analyses of data corpus, F-35 aircraft installation support, and other unspecified efforts for prime contractors such as Peraton Enterprise Solutions LLC, BAE Systems Technology Solutions & Services Inc., Lockheed Martin Corporation, Vertex Aerospace LLC, and Georgia Tech Applied Research Corporation in support of defense contracts.
Northrop Grumman Systems Corporation holds several indefinite delivery contracts and vehicles. These include a $15.6 million engineering services contract from the Air Force Sustainment Center; a $900 million Army modernization contract for studies, analytics, and technology demonstrations; a $32.5 billion Air Force training systems acquisition contract; a $900 million Air Force architecture and integration contract for systems development and simulation; an $8 million Missile Defense Agency contract for cross domain solutions hardware; a $249.7 million Navy contract for rapid prototyping and integration services across aviation and combat systems; and a $150 million Air Force contract to provide software upgrades for an electronic warfare system. Task orders have encompassed engineering services, meetings, deliveries of tactical ground stations, and other products.
DJUCEANK2KP4 336413
Not listed 7575 Colshire Dr Tower 1, McLean, VA 22102, USA
7/16/12 1/2/26 General Dynamics One Source LLC
General Dynamics One Source LLC is a subsidiary of major defense contractor General Dynamics Corporation. It provides a wide range of products and services to U.S. federal government customers, with a focus on secure communications, simulation and training systems, geospatial solutions, cyber and IT services, and specialized mission support.
Through past prime contract awards, General Dynamics One Source has delivered encrypted network devices, Sectera Viper secure phones, simulation and training systems, geospatial analytics capabilities, cloud services, and security support for sensitive programs. Customers include the Departments of Defense, Homeland Security, Justice and State, the U.S. Coast Guard, and intelligence agencies. Subcontractors like L3 GCS, Vertex Aerospace, and Meridian Systematics have aided in fulfilling contract requirements. Awards have been made against various indefinite delivery/indefinite quantity contracts like Solutions for Enterprise Wide Procurement V, ENCORE III IT Services, and Simulation, Training and Instrumentation.
General Dynamics One Source holds several indefinite delivery contract vehicles to provide undefined products and services on demand. A $1.8 billion IDIQ with DHS Customs and Border Protection contemplates task orders through 2027 likely related to border security technologies and professional services. A $4.5 billion IDIQ provides security support for Air Force Special Access Programs through 2034. The $5.1 billion Global Tactical Advanced Communication Systems II contract with the Army aims to fulfill tactical communications hardware, software and services needs through 2030. Task orders under these and other IDVs allow agencies to acquire necessary goods and services from General Dynamics One Source as needs emerge over multiple year periods.
D93YKLC3MK67 541511
Not listed 3150 Fairview Park Dr #100, Falls Church, VA 22042, USA
11/14/05 12/19/25