Harmonic Inc. (NASDAQ: HLIT) is a leading provider of broadband access solutions that enable cable and telecommunications operators to deploy high-speed internet, voice, and video services. Historically operating across two segments—Broadband and Video—the company transitioned to a pure-play broadband technology provider following the 2026 sale of its legacy video processing and delivery business to MediaKind for $145 million.
Today, Harmonic's core offering is its cOS (formerly CableOS) virtualized broadband platform, a software-based solution that allows operators to transition from traditional hardware-centric infrastructure to flexible, cloud-native architectures. The company complements its software with a portfolio of hardware products, including distributed access architecture (DAA) nodes (such as Oyster, Ripple, and SeaStar), remote PHY devices, and optical line terminal (OLT) modules. Harmonic also provides cOS central cloud services for network insights and telemetry, alongside professional support and integration services.
The company derives the vast majority of its revenue from the Americas (approximately 89% in 2025), with the remainder coming from the EMEA and APAC regions. Harmonic faces significant customer concentration, with a few major Tier 1 broadband operators, notably Comcast, historically accounting for a large majority of its net revenue. By focusing exclusively on next-generation broadband standards like DOCSIS 4.0 and fiber-to-the-home (FTTH) deployments, Harmonic aims to capitalize on the ongoing virtualization and multi-gigabit upgrades within the global telecommunications industry.
