Viavi Solutions, Inc.

Comcast Corporation (Nasdaq: CMCSA, CMCSK) is a global media and technology company with two primary businesses, Comcast Cable and NBCUniversal. Comcast Cable is the nation’s largest video, high-speed Internet and phone provider to residential customers under the XFINITY brand as well as to businesses. NBCUniversal operates 30 news and entertainment cable networks, the NBC and Telemundo broadcast networks, television production operations, television station groups, Universal Pictures and Universal Parks & Resorts.

AT&T, Inc. is a holding company, which engages in the provision of telecommunications media and technology service. It operates through the following segments: Communications, WarnerMedia, and Latin America. The Communications segment provides services to businesses and consumers located in the U.S., or in U.S. territories, and businesses globally. The WarnerMedia segment develops, produces and distributes feature films, television, gaming and other content over various physical and digital formats. The Latin America segment provides entertainment and wireless services outside of the U.S.. The company was founded in 1983 and is headquartered in Dallas, TX.

Lockheed Martin Corp. operates as a global security and aerospace company, which engages in the research, design, development, manufacture, integration, and sustainment of technology systems, products, and services. It operates through the following business segments: Aeronautics, Missiles and Fire Control (MFC), Rotary and Mission Systems (RMS) and Space. The Aeronautics segment researches, designs, develops, manufactures, integrates, sustains, supports, and upgrades advanced military aircraft, including combat and air mobility aircraft, unmanned air vehicles, and related technologies. The MFC segment provides air and missile defence systems; tactical missiles and air-to-ground precision strike weapon systems; logistics; fire control systems; mission operations support, readiness, engineering support and integration services; manned and unmanned ground vehicles; and energy management solutions. The RMS segment offers design, manufacture, service, and support for a variety of military and commercial helicopters; ship and submarine mission and combat systems; mission systems and sensors for rotary and fixed-wing aircraft; sea and land-based missile defence systems; radar systems; the Littoral Combat Ship; simulation and training services; and unmanned systems and technologies. The Space segment comprises of the research and development, design, engineering and production of satellites, strategic, and defensive missile systems and space transportation systems. The company was founded in 1961 and is headquartered in Bethesda, MD.