ADTN vs GLW

ADTRAN Holdings Inc.

ADTRAN, Inc. provides networking and communications platforms and services for service providers, cable/multiple system operators, small- to medium-sized business, and distributed enterprises in the United States, Germany, Mexico, and internationally. The company operates through two segments, Network Solutions, and Services & Support. It offers fiber to the premises and fiber to the node (FTTN) multi-service access nodes (MSAN); fiber aggregation and FTTN MSAN; network management and subscriber services control and orchestration software; software defined networking -controlled programmable network elements; fiber to the distribution point units; optical line terminals and transport solutions; IP-based digital subscriber line access multiplexers; cabinet and outside plant enclosures and services; transceivers, cables, and other miscellaneous materials; and other products, software, and services. The company also provides broadband customer premise solutions and point-to-point Ethernet optical network terminals; radio frequency over glass micro nodes; ethernet switches for multi-gigabit local area networking; SmartOS software licensing for residential gateway and Wi-Fi devices; cloud-based SaaS management platforms; Wi-Fi-enabled residential gateway products and accessories; managed mesh Wi-Fi solutions for cloud-managed connectivity; virtual wireless local area networks for business-class Wi-Fi and management; and pre-sale and post-sale technical support. In addition, it offers planning, engineering, program management, maintenance, installation, and commissioning services. Further, the company offers time division multiplexed and asynchronous transfer mode-based aggregation systems and customer devices; and high-bit-rate digital subscriber line, asymmetric digital subscriber line, and other technologies to deliver business and residential services. ADTRAN, Inc. was incorporated in 1985 and is headquartered in Huntsville, Alabama.

Corning Incorporated

Corning Incorporated engages in display technologies, optical communications, environmental technologies, specialty materials, and life sciences businesses worldwide. The company's Display Technologies segment offers glass substrates for liquid crystal displays and organic light-emitting diodes used in televisions, notebook computers, desktop monitors, tablets, and handheld devices. Its Optical Communications segment provides optical fibers and cables; and hardware and equipment products, including cable assemblies, fiber optic hardware and connectors, optical components and couplers, closures, network interface devices, and other accessories for various carrier network applications. This segment also offers operator-grade distributed antenna systems; optical network evolution wireless platform; subscriber demarcation, connection and protection devices, various digital subscriber line passive solutions, and outside plant enclosures; and coaxial RF interconnects for the cable television industry and microwave applications. The company's Environmental Technologies segment offers ceramic substrates and filter products for emissions control in mobile, gasoline, and diesel applications. Its Specialty Materials segment manufactures products that provide material formulations for glass, glass ceramics, and fluoride crystals. The company's Life Sciences segment offers laboratory products comprising consumables, such as plastic vessels, specialty surfaces, cell culture media, and serum, as well as general labware and equipment under the Corning, Falcon, Pyrex, and Axygen brands. The company was formerly known as Corning Glass Works and changed its name to Corning Incorporated in April 1989. Corning Incorporated was founded in 1851 and is headquartered in Corning, New York.