General Dynamics Corporation operates as an aerospace and defense company worldwide. It operates through four segments: Aerospace, Marine Systems, Combat Systems, and Technologies. The Aerospace segment produces and sells business jets; and offers aircraft maintenance and repair, management, aircraft-on-ground support and completion, charter, staffing, and fixed-base operator services. The Marine Systems segment designs and builds nuclear-powered submarines, surface combatants, and auxiliary ships for the United States Navy and Jones Act ships for commercial customers, as well as builds crude oil and product tankers, and container and cargo ships; provides maintenance, modernization, and lifecycle support services for navy ships; offers and program management, planning, engineering, and design support services for submarine construction programs. The Combat Systems segment manufactures land combat solutions, such as wheeled and tracked combat vehicles, Stryker wheeled combat vehicles, piranha vehicles, weapons systems, munitions, mobile bridge systems with payloads, tactical vehicles, main battle tanks, armored vehicles, and armaments; and offers modernization programs, engineering, support, and sustainment services. The Technologies segment provides information technology solutions and mission support services; mobile communication, computers, and command-and-control mission systems; intelligence, surveillance, and reconnaissance solutions to military, intelligence, and federal civilian customers; cloud computing, artificial intelligence; machine learning; big data analytics; development, security, and operations; and unmanned undersea vehicle manufacturing and assembly services. The company was founded in 1899 and is headquartered in Reston, Virginia.

Leidos Holdings, Inc., together with its subsidiaries, provides services and solutions in the defense, intelligence, civil, and health markets in the United States and internationally. The company operates through Defense Solutions, Civil, and Health segments. The Defense Solutions segment offers national security solutions and systems for air, land, sea, space, and cyberspace for the U.S. Intelligence Community, the Department of Defense, the space development agency, the National Aeronautics and Space Administration, defense information systems agency, military services, and government agencies of U.S. allies abroad, as well as other federal and commercial customers in the national security industry. The solutions include technology, large-scale systems, command and control platforms, data analytics, logistics, and cybersecurity solutions, as well as intelligence analysis and operations support services to critical missions. The Civil segment provides systems integration services to air navigation service providers, including the federal aviation administration, the En route automation modernization, advanced technology oceanic procedure, time based flow management, terminal flight data management, geo-7, and future flight services, as well as enterprise-information display systems; and security detection services. It also offers information technology (IT) solutions in cloud computing, mobility, application modernization, DevOps, data center, network modernization, asset management, help desk operations, and digital workplace enablement; and environment, energy, and infrastructure services. The Health segment offers solutions to federal and commercial customers responsible for health and well-being of people, include health information management, managed health, digital modernization, and life sciences research and development services. Leidos Holdings, Inc. was founded in 1969 and is headquartered in Reston, Virginia.

CACI International Inc, through its subsidiaries, engages in the provision of expertise and technology to enterprise and mission customers in support of national security in the intelligence, defense, and federal civilian sectors. The company operates through two segments, Domestic Operations and International Operations. The Domestic Operations segment offers digital solutions by modernizing enterprise and agency-unique applications, enterprise infrastructure, and business processes; C4ISR solutions, including command, control, communications, and computer (C4), as well as intelligence, surveillance, and reconnaissance (ISR) technology and networks; and cyber solutions for cybersecurity, cyberspace, electronic warfare, and signals intelligence operations. This segment also provides space solutions, comprising intelligence fusion, data analytic, and decision support, as well as logistics solutions; engineering services, such as platform integration, modernization and sustainment, system engineering, naval architecture, training and simulation, and logistics engineering; design, implement, protect, and manage secure enterprise IT solutions for federal agencies; and mission support solutions, that include analytic services, as well as scenario-based instruction across the spectrum of intelligence processing, collection, and products. The International Operations segment provides a range of IT services, proprietary data, and software products to the commercial and government customers in the United Kingdom, continental Europe, and internationally. The company was founded in 1962 and is headquartered in Reston, Virginia.

Parsons Corporation provides integrated solutions and services in the defense, intelligence, and critical infrastructure markets in North America, the Middle East, and internationally. The company operates through Federal Solutions and Critical Infrastructure segments. The Federal Solutions segment provides critical technologies, such as cybersecurity; missile defense; intelligence; space launch and ground systems; space and weapon system resiliency; geospatial intelligence; signals intelligence; environmental remediation; border security, critical infrastructure protection; counter unmanned air systems; biometrics and bio surveillance solutions to U.S. Department of Defense, including military services; Missile Defense Agency, the Department of Energy; the Department of State; the Department of Homeland Security, and the Federal Aviation Administration. The Critical Infrastructure segment provides management, design, and engineering services, as well as offers leveraging sensor solutions. This segment develops digital solutions for next generation aviation, rail and transit, bridges, roads, and highways; and provides water and wastewater treatment systems; AI/ML, and digital twin and cyber systems integration services; planning, engineering, and management services for infrastructure, including bridges and tunnels, roads and highways, water and wastewater, and dams and reservoirs. Parsons Corporation was founded in 1944 and is headquartered in Chantilly, Virginia.

Amentum Holdings, Inc. provides engineering and technology solutions to address challenges in science, security, and sustainability. It serves various markets, such as energy and environment, space, intelligence, defense, civilian, commercial, and international markets. The company was incorporated in 2010 and is headquatered in Chantilly, Virginia.

Kratos Defense & Security Solutions, Inc. operates as a technology company that addresses the defense, national security, and commercial markets. It operates through two segments, Kratos Government Solutions and Unmanned Systems. The company offers ground systems for satellites and space vehicles, including software for command and control, telemetry, and tracking and control; jet-powered unmanned aerial drone systems, hypersonic vehicles, and rocket systems; propulsion systems for drones, missiles, loitering munitions, supersonic systems, spacecraft, and launch systems; command, control, communication, computing, combat, intelligence surveillance and reconnaissance; and microwave electronic products for missile, radar, missile defense, space, and satellite; counter unmanned aircraft systems, directed energy, communication and other systems, and virtual and augmented reality training systems for the warfighter. The company primarily serves national security-related agencies, the U.S. Department of Defense, intelligence agencies and classified agencies, international government agencies, and commercial customers. Kratos Defense & Security Solutions, Inc. was incorporated in 1994 and is headquartered in San Diego, California.

VSE Corporation operates as a diversified aftermarket products and services company in the United States. The company operates through two segments, Aviation and Fleet. The Aviation segment provides aftermarket parts supply and distribution; maintenance, repair, and overhaul services for components and engine accessories supporting commercial, business, and general aviation operators. This segment serves commercial airlines, regional airlines, cargo transporters, MRO integrators and providers, aviation manufacturers, corporate and private aircraft owners, and fixed-base operators. The Fleet segment offers parts supply, inventory management, e-commerce fulfillment, logistics, supply chain support, and other services to support the commercial aftermarket medium- and heavy-duty truck market. This segment also provides sale of vehicle parts and supply chain services to support client truck fleets, as well as sustainment solutions and managed inventory services to government and commercial truck fleets. VSE Corporation was incorporated in 1959 and is headquartered in Vienna, Virginia.

Telos Corporation, together with its subsidiaries, provides cyber, cloud, and enterprise security solutions worldwide. The company operates in two segments, Security Solutions and Secure Networks. It provides Xacta, a platform for enterprise cyber risk management and security compliance automation; and consulting, assessment and compliance, engineering and evaluation, operations, and penetration testing services. The company also offers Telos Automated Message Handling System, a web-based organizational message distribution and management for mission-critical communications used by military field operatives; Telos Advanced Cyber Analytics solution, which is a threat feed source of global Internet Protocol addresses known to engage in potentially malicious activity, including mass scanning and generic opportunistic attacks; and Telos Ghost, a solution to eliminate cyberattack surfaces by obfuscating and encrypting data, masking user identity and location, and hiding network resources, as well as provides security and privacy for intelligence gathering, cyber threat protection, securing critical infrastructure, and protecting communications and applications. In addition, the company provides IDTrust360, an enterprise digital trusted identity risk platform for extending flexible hybrid cloud identity services; and ONYX, a touchless fingerprint biometric solution for mobile devices. Further, it offers secure mobility solutions that enable remote work and minimize operational and security concerns across and beyond the enterprise; network management and defense services for operating, administrating, and defending complex enterprise networks and services for defensive cyber operations; and operates TSA PreCheck enrollment centers. It serves the United States federal government, large commercial businesses, state and local governments, and international customers. Telos Corporation was founded in 1968 and is headquartered in Ashburn, Virginia.