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

AT&T Inc. is an American multinational conglomerate holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company, the largest provider of mobile telephone services, and the largest provider of fixed telephone services in the United States through AT&T Communications. Since June 14, 2018, it is also the parent company of mass media conglomerate WarnerMedia, making it the world's largest media and entertainment company in terms of revenue. As of 2018, AT&T is ranked #9 on the Fortune 500 rankings of the largest United States corporations by total revenue.

WSOU Investments LLC engages in leveraging its proprietary technology and management experience to inventors and patent owners maximize their patents. It takes on license negotiations, infringement, and consultancy services for patent purchases and dispositions. The company is headquartered in Waco, TX.

RPX Corporation (NASDAQ: RPXC) is a leading provider of patent risk solutions, offering defensive buying, acquisition syndication, patent intelligence, insurance services, and advisory services. Since its founding in 2008, RPX has introduced efficiency to the patent market by providing a rational alternative to litigation. The San Francisco-based company’s pioneering approach combines principal capital, deep patent expertise, and client contributions to generate enhanced patent buying power. By acquiring patents, RPX helps to mitigate and manage patent risk for its growing client network. Clients pay annual fees ranging from $60,000 to $6.6 million depending on company size, and automatically receive rights to the entire RPX patent portfolio. As of September 30, 2012, RPX had invested over $500 million to acquire more than 2,950 US and international patent assets and rights, and had a client network of 128 members active in seven key sectors: consumer electronics and PCs, E-commerce and software, financial services, media content and distribution, mobile communications and devices, networking, and semiconductors. RPX promises it will never assert patents or patent rights in its portfolio.

Part of Broadcom Inc., Avago Technologies International Sales Pte Ltd. is a Singaporean company located in Singapore that supplies semiconductor devices.

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.

Samsung Electronics is a global technology company headquartered in South Korea that operates in various areas of the electronics industry, including consumer electronics, information technology, mobile communications, and device solutions. The company is involved in the development, manufacturing, and sale of a wide range of consumer products, such as mobile phones, tablets, TVs, home theater systems, digital cameras, and home appliances like refrigerators, air conditioners, washing machines, and ovens. Additionally, it offers PCs, peripherals, printers, memory and storage products, healthcare and medical equipment, telecommunications infrastructures, and LED lighting solutions. The company is also involved in semiconductor manufacturing, cyber game match hosting, venture capital investments, sponsoring sports teams and games, credit management, and logistics services. Samsung Electronics operates in various regions worldwide, including Korea, China, North and Latin America, Europe, the Asia Pacific, and Africa. The company also provides repair services and consultation for electronic devices and communication systems.

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.

Intel Corp. engages in the design, manufacture, and sale of computer products and technologies. It delivers computer, networking, data storage, and communications platforms. The firm operates through the following segments: Client Computing Group (CCG), Data Center and AI (DCAI), Network and Edge (NEX), Mobileye, Accelerated Computing Systems and Graphics (AXG), Intel Foundry Services (IFS), and All Other. The CCG segment consists of platforms designed for notebooks, 2-in-1 systems, desktops, tablets, phones, wireless and wired connectivity products, and mobile communication components. The DCAI segment delivers solutions to cloud service providers and enterprise customers, along with silicon devices for communications service providers and high-performance computing customers. The NEX segment offers computing system solutions from inflexible fixed-function hardware to general-purpose compute, acceleration, and networking devices running cloud native software on programmable hardware. The Mobileye segment develops driving assistance and self-driving solutions. The AXG segment provides products and technologies designed to help customers solve the toughest computational problems. Its products include CPUs for high-performance computing and GPUs targeted for a range of workloads and platforms, from gaming and content creation on client devices to delivering media and gaming in the cloud, and the most demanding high-performance computing and AI workloads on supercomputers. The IFS segment refers to full stack solutions created from the foundry industry ecosystem. The All Other segment represents results from other non-reportable segments and corporate-related charges. The company was founded by Robert Norton Noyce and Gordon Earle Moore on July 18, 1968, and is headquartered in Santa Clara, CA.

LS Corp. is a holding company, which engages in the management and control of business contents of its domestic companies through ownership of shares. It operates through the following business divisions: Electric Cable, Power Generation, Mtron, and I&D. The Electric Cable division provides power lines and optical communication cables. The Power Generation division manufactures and supplies products for the purpose of system protection. The Mtron division focuses on the machinery and component business that offers products such as tractors and injection machines. The I&D division includes the real estate development and overseas investment. The company was founded on May 15, 1962 and is headquartered in Seoul, South Korea.

Callahan Cellular LLC engages in the provision of a communications terminal which uses a network or the Internet for the transfer of digitized speech. The company is headquartered in DE.

Agere Systems (formerly Lucent ME) is a network processor company providing datacom and telecom equipment manufacturers with powerful multi-protocol solutions for complex Layer 2 through 7 processing. Agere was founded to develop and commercialize a proven, patented technology for the construction of wire-speed programmable routers, switches and network management equipment. Agere enables system vendors to provide carriers, service providers and enterprises with the ability to quickly offer new OC-12, OC-48, and Gigabit Ethernet services.

Hitachi Ltd. is engaged in the manufacture and sale of electrical equipment. It operates through the following segments: Information Technology (IT), Energy, Industry, Mobility, Life, Hitachi High Technologies, Hitachi Construction Machinery, Hitachi Metals, Hitachi Chemical and Others. The IT segment handles systems integration, consulting, control systems, cloud services, software, IT products such as storage and servers, and automated teller machines. The Energy segment pertains to power generation systems (nuclear power, renewable energy & thermal power) and power grid systems. The Industry segment covers industrial and distribution systems, water & environment systems, and industrial equipment. The Mobility segment includes building systems like elevators & escalators, and railway systems. The Life segment manages medical equipment; life & ecosystems such as refrigerator, washing machine, room & commercial air conditioner; automotive systems including powertrain system, chassis systems and advanced driving support systems. The Hitachi High Technologies segment covers medical & life science products, analytical equipment, semiconductor manufacturing equipment, manufacturing & inspection equipment, and advanced industrial materials. The Hitachi Construction Machinery segment handles hydraulic excavators, wheel loaders, mining machines, maintenance services, civil engineering solutions, and mine operation management systems. The Hitachi Metals segment manages special steel products, base material products, magnetic materials, power electronics, and wire materials. The Hitachi Chemical segment covers functional materials (electronic materials, wiring board materials & electronic components), advanced components and systems (mobility materials, power storage devices & life science related products). The Others segment provides optical disc drives and real estate management services. The company was founded by Namihei Odaira in 1910 and is headquartered in Tokyo, Japan.

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.

Guangshitong Network Communication Media Co., Ltd., established on 2013-10-01, Business scope includes radio and television program production,issued,Value-added Telecom Services,Communication engineering construction,Communication equipment installation,maintain,wholesale,retail,network engineering,Internet technology,computer technology,multimedia technology,And technology development in the field of electronic technology and network system integration,technology transfer,technical consulting,Technical Services,e-commerce(Not to engage in financial business),software development,computer system integration,Advertising Design,make,acting,release,Business Management Consulting,Corporate Image Planning,marketing planning,Sports event planning,Intellectual property agency,Cultural and artistic exchange and planning,data processing services,communication device,electric equipment,Labor protective equipment,electronic product,Metal materials and products,Toy,Clothing,sporting goods,Office Supplies,Daily necessities,food,Sales of edible agricultural products,Conference and Exhibition. [Items subject to approval by law,Business activities can only be carried out after approval by relevant departments]

State Grid Shanghai Municipal Electric Power Co. (doing business as SMEPC) is a company headquartered in Shanghai, China and ultimately controlled by the Government of China, that engages in electricity distribution.

Manufactures and sells fiber-optic components and test instrumentation