ADTRAN Holdings, Inc. is a Huntsville, Alabama-based provider of open, disaggregated networking and communications solutions, founded in 1985. The company serves telecommunications operators, cable companies, municipal broadband providers, utilities, and other service providers, enabling them to deliver voice, data, video, and internet connectivity to end users worldwide. It employs between 1,000 and 5,000 people and operates across multiple countries.
ADTRAN's product portfolio spans four main areas: optical networking, access and aggregation, subscriber solutions, and network automation. The company's technical work spans fiber broadband access, 5G, Wi-Fi 6, software-defined networking (SDN), and network functions virtualization (NFV), with a particular focus on open and disaggregated architectures that allow service providers to mix and match components from different vendors.
The company's stated mission is to make communications simpler and more affordable. It has pursued this through a combination of product development and strategic acquisitions, building out a portfolio that addresses both the infrastructure layer - optical transport and broadband access - and the software layer, including network automation tools designed to reduce the operational complexity that typically accompanies large-scale network deployments.