Adtran Networks SE engages in the development, manufacture, and sale optical and Ethernet-based networking solutions for telecommunications carriers and enterprises to deliver data, storage, voice, and video services worldwide. It offers open optical transport solutions, such as FSP 3000 open terminals, FSP 3000 open line systems, pluggables and subsystems, and optical access solutions; packet edge and aggregation products, including carrier Ethernet and programmable multilayer edge, metro aggregation, and edge computing products; disaggregated networking, such as packet optical terminals and ensemble activators. The company also provides network virtualization products comprising ensemble connectors, orchestrators, and harmony ecosystems, as well as operates ensemble virtualization director, a management platform for the creation and deployment of virtualized services; network infrastructure assurance products; timing and synchronization products; and automated network management products, such as ensemble optical, sync, fiber, and packet director, and ensemble controllers. In addition, it offers professional services to build, care, and enable the networks. Adtran Networks SE sells its products to telecommunications service providers, private companies, universities, and government agencies directly, as well as through a network of distribution partners. The company was formerly known as ADVA Optical Networking SE and changed its name to Adtran Networks SE in June 2023. The company was founded in 1994 and is headquartered in Munich, Germany. Adtran Networks SE operates as a subsidiary of ADTRAN Holdings, Inc.