Huawei Technologies is a telecom solutions company that offers infrastructure application software and devices with wireline, wireless, and IP technologies. The company’s products and solutions have been deployed in over 100 countries and have served 45 of the world's top 50 telecom operators as well as one third of the world's population. Huawei Technologies has 3 divisions in the United States: enterprise (IP networking and routers, wireless, storage, data center security), carrier, and consumer devices (smartphones and tablets). Founded in January 1987, Huawei Technologies is headquartered in Shenzhen, Guangdong. Its testing lab is based in Plano, Texas with an additional office in Santa Clara, California.

Alcatel-Lucent SAS engages in the provision of communications solutions to telecommunications companies, Internet service and data providers. It develops and integrates technologies, applications and services to offer global communications services. The company was founded in 1976 and is headquartered in Boulogne-Billancourt, France.

ETRI is the largest government funded research institute in Korea, which strives to advance science by means of formulating innovative ideas; developing new techniques; and training professional individuals in the area of information telecommunications to ultimately enhance social and economical aspects of the modern society.

Expanding 4.5 million fixed lines to 20 million in just 12 years, kt introduced universal telephone service to every citizen of Korea, leading the development and advancement of communications services. More recently, kt established an advanced broadband network for the first time in Asia, and launched Korea's first communication satellite 'Mugunghwa (Sharon's Rose)', contributing to making Korea one of the most advanced countries in information and communications. Since becoming a government-funded corporation in 1997, kt changed its business portfolio to focus more on wireless and internet services instead of fixed lines. Taking over Hansol M.com and merging with its subsidiary KTF, kt expanded its business scope and included mobile communication as its main service. kt became a privately owned company in 2002 and began concentrating on building broadband network. As a result, the company set several new records including the increase of ADSL subscribers to 6 million in just 3 years and played a leading role in the age of digital networking.

Nortel Networks has hung up on the telecom sector. Once one of the largest makers of telecommunications equipment in North America, it filed for bankruptcy protection in 2009 and is in the process of liquidating its assets. The company made core network switching, wireless, and optical systems for network operators. Its wireline and enterprise network equipment included systems for digital voice and data switching, routing, and call center communications. Wireless products included cellular base stations and controllers. The company also made such long-haul fiber-optic products as multiplexers. Nortel is currently focused on selling off its remaining businesses and intellectual property and winding down all operations. Today, Nortel's Metro Ethernet Networks segment provides carrier Ethernet switching, optical networking, and multi-service switching products.

Powerchina Guiyang Engineering Corp. Ltd. is a Chinese company located in Guiyang and ultimately controlled by the Government of China that provides hydraulic engineering services.

S.P.C.M. SA manufactures and sells water soluble polymers and chemicals. The company was founded on March 7, 1978 and is headquartered in Andrezieux-Boutheon, France.

Ciena is the network specialist. They collaborate with customers worldwide to unlock the strategic potential of their networks and fundamentally change the way they perform and compete. With focused innovation, Ciena brings together the reliability and capacity of optical networking with the flexibility and economics of Ethernet, unified by a software suite that delivers the industry's leading network automation. They routinely post recent news, financial results and other important announcements and information about Ciena on their website.

Western electric is the sole producer of the Western Electric Vacuum Tube.

TranSwitch Corporation designs, develops, markets, and supports integrated digital and mixed-signal semiconductor devices for the telecommunications and data communications markets worldwide. It offers optical transport products, such as SONET/SDH/PDH mappers and framers; and tributary switching and grooming devices, which include switch fabric and adjunct switching devices that enable traffic to be switched or re-arranged. The company also provides broadband access products, including ATM controllers that comprise CellBus line of products used in DSLAM and APON/BPON OLT equipment; physical layer solution; and FTTP protocol layer products. In addition, it offers carrier Ethernet products, including circuit emulation devices that provide a migration path for transporting T1, E1, T3, and E3 circuits over IP, MPLS, and tag-switched Ethernet networks; Ethernet switches to examine header information on source/destination address, VLAN tags, and MPLS labels; Ethernet controllers that manage Ethernet traffic to and from multiple physical interfaces; and Ethernet PHY, including TransPHY 10-Gigabit PHY devices. Further, the company provides voice over Internet protocol products for carrier-class media gateway, access gateway, and residential gateway markets; software programs to control its configurable devices; product reference design models for hardware and software applications; evaluation boards and reference design; original equipment manufacturer (OEM) product design support; multi-tier applications support; and product technical and design documentation services. It serves public network systems OEMs, WAN and LAN equipment OEMs, Internet-oriented OEMs, and communications test and performance measurement equipment OEMs, as well as government, universities, and private laboratories. TranSwitch sells its products through a direct sales force, sales representatives, and distributors.

Provides telephone services

VeinRx, Inc. develops minimally invasive devices to treat venous reflux disease. Its products include ScleroCath, which is used to temporarily include the saphenous vein. The company was founded by Scott Jahrmarkt in July 2001 and is headquartered in Miami, FL.

Mercury Corp. designs and manufactures telecommunications equipment. Its products include Fiber, Network, Access, and Voice Switch. The company was founded on August 21, 2000 and is headquartered in Incheon, South Korea.

telent Technology Services Ltd. provides network and communications services. It offers broadband routing and switching, broadband access, and network equipment. The company is headquartered in Warwick, the United Kingdom.

Manufactures radio and television broadcasting and communications equipment

Designs and builds a wide range of public and private networks, communications systems and software, and data networking systems, as well as telephone systems and microelectronic components

MACOM Connectivity Solutions LLC, part of MACOM Technology Solutions Holdings, Inc., is a company headquartered in the United States that develops computing and connectivity solutions for cloud infrastructure.

Fiberhome Telecommunication Technologies Co., Ltd. engages in the manufacture and sale of communication equipment and the provision of network solutions. Its products include communication system equipment, optical fibers, cables and data network products. The company was founded on December 25, 1999 and is headquartered in Wuhan, China.

Ekinops Corp. Operates as a non-classified establishment. The company was founded by François-Xavier Ollivier and is headquartered in Wilmington, DE.