Lucent Technologies, Inc. was an American multinational telecommunications equipment company headquartered in Murray Hill, New Jersey. It was established on September 30, 1996, through the divestiture of the former AT&T Technologies business unit of AT&T Corporation, which included Western Electric and Bell Labs.
3Com Corporation was an American digital electronics manufacturer best known for its computer network products. The company was co-founded in 1979 by Robert Metcalfe, Howard Charney and others. Bill Krause joined as President in 1981. Metcalfe explained the name 3Com was a contraction of "Computer Communication Compatibility", with its focus on Ethernet technology that he had co-invented, which enabled the networking of computers.
MCI Communications Corporation was a telecommunications company headquartered in Washington, D.C. that was at one point the second-largest long-distance provider in the United States.
PMC-Sierra was a global fabless semiconductor company with offices worldwide that developed and sold semiconductor devices into the storage, communications, optical networking, printing, and embedded computing marketplaces.
Rockwell Collins was a multinational corporation headquartered in Cedar Rapids, Iowa, providing avionics and information technology systems and services to government agencies and aircraft manufacturers. It was formed when the Collins Radio Company, facing financial difficulties, was purchased by Rockwell International in 1973. In 2001, the avionics division of Rockwell International was spun off to form the current Rockwell Collins, Inc., retaining its name.
Stratus Technologies, Inc. is a major producer of fault tolerant computer servers and software. The company was founded in 1980 as Stratus Computer, Inc. in Natick, Massachusetts, and adopted its present name in 1999. The current CEO and president is Dave Laurello. Prior to 2022, Stratus Technologies, Inc. was a privately held company, owned solely by Siris Capital Group. The parent company, Stratus Technologies Bermuda Holdings, Ltd., was incorporated in Bermuda. In 2022, the company was acquired by Smart Global Holdings (SGH) and currently operates within SGH's Intelligent Platform Solutions (IPS) business.
Foundry Networks, Inc. was a networking hardware vendor selling high-end Ethernet switches and routers. The company was acquired by Brocade Communications Systems on December 18, 2008.
Cabletron Systems, Inc., was a manufacturer of networking computer equipment throughout the 1980s and 1990s primarily based in Rochester, New Hampshire, in the United States. They also had manufacturing facilities in Ironton, Ohio, and in Ireland.
Cascade Communications Corporation was a manufacturer of communications equipment based in Westford, Massachusetts.
The breakup of the Bell System was mandated on January 8, 1982, by a consent decree providing that AT&T Corporation would, as had been initially proposed by AT&T, relinquish control of the Bell Operating Companies, which had provided local telephone service in the United States. This effectively took the monopoly that was the Bell System and split it into entirely separate companies that would continue to provide telephone service. AT&T would continue to be a provider of long-distance service, while the now-independent Regional Bell Operating Companies (RBOCs), nicknamed the "Baby Bells", would provide local service, and would no longer be directly supplied with equipment from AT&T subsidiary Western Electric.
Sprint Corporation was an American telecommunications company. Before being acquired by T-Mobile US on April 1, 2020, it was the fourth-largest mobile network operator in the United States, serving 54.3 million customers as of June 30, 2019. The company also offered wireless voice, messaging, and broadband services through its various subsidiaries under the Boost Mobile and Open Mobile brands and wholesale access to its wireless networks to mobile virtual network operators.
Riverstone Networks, was a provider of networking switching hardware based in Santa Clara, California. Originally part of Cabletron Systems, and based on an early acquisition of YAGO, it was one of the many Gigabit Ethernet startups in the mid-1990s. It is now a part of Alcatel-Lucent and its operations are being wound down via a Chapter 11 filing by their current owners.
Ciena Corporation is an American networking systems and software company based in Hanover, Maryland. The company has been described by The Baltimore Sun as the "world's biggest player in optical connectivity". The company reported revenues of $3.63 billion for 2022. Ciena had over 8,000 employees, as of October 2022. Gary Smith serves as president and chief executive officer (CEO).
Madge Networks NV was a networking technology company founded by Robert Madge, and is best known for its work with Token Ring. It was a global leader and pioneer of high-speed networking solutions in the mid-1990s, and also made significant contributions to technologies such as Asynchronous Transfer Mode (ATM) and Ethernet.
Alcatel–Lucent S.A. was a multinational telecommunications equipment company, headquartered in Boulogne-Billancourt, France. It was formed in 2006 by the merger of France-based Alcatel SA and U.S.-based Lucent Technologies, the latter being a successor of AT&T's Western Electric and a holding company of Bell Labs.
Dialogic Group, Inc., formerly Dialogic Corporation, was an American multinational technology company headquartered in Parsippany, New Jersey, United States. Prior to its acquisition by Enghouse Systems of Ontario in 2020, it had operations in over 25 countries. Dialogic provided a cloud-optimized communications technology for real-time communications media, applications, and infrastructure to service providers, enterprises, and developers.
FORE Systems was a computer network switching equipment company based in Pittsburgh, Pennsylvania. Founded in 1990 to supply Asynchronous Transfer Mode (ATM) cards for workstation computers, it soon branched out to become a major supplier in the ATM switch market and the extended those product lines to add Internet Protocol switching and other devices.
Integrated Device Technology, Inc. (IDT), was an American semiconductor company headquartered in San Jose, California. The company designed, manufactured, and marketed low-power, high-performance mixed-signal semiconductor products for the advanced communications, computing, and consumer industries. The company marketed its products primarily to original equipment manufacturers (OEMs). Founded in 1980, the company began as a provider of complementary metal-oxide semiconductors (CMOS) for the communications business segment and computing business segments. The company focused on three major areas: communications infrastructure, high-performance computing, and advanced power management. Between 2018 and 2019, IDT was acquired by Renesas Electronics.
Livingston Enterprises, Inc. was a computer networking company.
