GD vs TEN

General Dynamics Corporation

General Dynamics Corporation operates as an aerospace and defense company worldwide. It operates through four segments: Aerospace, Marine Systems, Combat Systems, and Technologies. 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 oil and product tankers, and container and cargo ships. This segment also provides submarine maintenance and modernization services; lifecycle support services for navy surface ships; and program management, planning, engineering, and design support services for submarines and surface-ships. The Combat Systems segment manufactures land combat solutions, such as wheeled and tracked combat vehicles, weapons systems, munitions, mobile bridge systems with payloads, tactical vehicles, main battle tanks, armored vehicles, weapons systems, and armaments. This segment also offers modernization program, 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; and intelligence, surveillance, and reconnaissance solutions to military, intelligence, and federal civilian customers. This segment also offers cloud computing, artificial intelligence, machine learning, big data analytics, development, security and operation, software-defined network, everything as-a-service and defense enterprise office system solutions. General Dynamics Corporation was founded in 1899 and is headquartered in Reston, Virginia.

Tsakos Energy Navigation Ltd

Tenneco Inc. designs, manufactures, and sells clean air, powertrain, and ride performance products and systems for light vehicle, commercial truck, off-highway, industrial, and aftermarket customers worldwide. The company operates through Clean Air, Powertrain, Ride Performance, and Motorparts segments. It offers clean air products and systems, including catalytic converters and diesel oxidation catalysts; diesel particulate filters(DPFs); burner systems; lean nitrogen oxide (NOx) traps; selective catalytic reduction (SCR) systems; hydrocarbon vaporizers and injectors; SCR-coated diesel particulate filters systems; urea dosing systems; four-way catalysts; alternative NOx reduction technologies; mufflers and resonators; fabricated exhaust manifolds; pipes; hydroformed assemblies; elastomeric hangers and isolators; and aftertreatment control units. The company also provides powertrain products and systems, such as pistons; piston rings; cylinder liners; valve seats and guides; bearings; spark plugs; valvetrain products; system protection products; and seals and gaskets. In addition, it offers motor parts, including steering and suspension, braking, sealing, engine, emission, and maintenance products, as well as shocks and struts; and ride performance products and systems comprising advanced suspension technologies, and ride control and braking products, as well as noise, vibration, and harshness performance materials. The company was formerly known as Tenneco Automotive Inc. and changed its name to Tenneco Inc. in 2005. Tenneco Inc. was founded in 1996 and is headquartered in Lake Forest, Illinois.