Harmonic
Harmonic (NASDAQ: HLIT) provides the cOS virtualized broadband platform (vCMTS/vOLT/vBNG) plus edge hardware to cable MSOs and telcos globally, supporting DOCSIS and fiber networks on a single unified architecture.
- Company typePublic
- Founded1988
- HeadquartersSan Jose, United States
- Headcount1,001–5,000
- GTM typeB2B
- OfferingSoftware
What Harmonic does
Harmonic Inc. (NASDAQ: HLIT) is a San Jose, California-based public company founded in 1988 that has repositioned itself as a pure-play broadband infrastructure provider following the June 2026 divestiture of its Video Business to MediaKind for $145M. The company sells the cOS virtualized broadband platform (formerly CableOS), a cloud-native software stack running on Kubernetes and COTS hardware that delivers virtualized CMTS (vCMTS), virtual OLT (vOLT), and virtual BNG (vBNG) functions, supporting both DOCSIS (up to 4.0) and fiber (GPON, XGS-PON, ComboPON) networks from a single unified architecture. Around the core platform, Harmonic sells a portfolio of distributed edge devices (Oyster, Pebble, Pebble-2, Ripple DAA nodes; SeaStar optical node), centralized edge shelves (Reef, Wave), and FTTx transceivers/modules (Fin, Jetty, Pearl, Wharf, Pier), augmented by cOS Central Management and the Beacon Intelligent Speed Maximizer application.
The company serves cable MSOs, telcos, and broadband service providers globally through enterprise field sales, with cited reference deployments at Comcast, Charter, Mediacom, Vodafone, izzi, DNA Finland, and 150+ other operators powering roughly 46 million CPE devices across North America, Europe, Latin America, and Asia. Revenue is generated through a mix of platform software subscriptions and licenses, hardware sales of edge devices, professional services for deployment and integration, and recurring managed services including cOS Central Management. Harmonic is the Dell'Oro Group-recognized market share leader in vCMTS, DAA, and cable broadband equipment, holds a 2023 Technology & Engineering Emmy Award for vCMTS innovation, and has secured an $87% YoY increase in record backlog ($582.1M as of Q1 2026) and 43% YoY Broadband segment revenue growth, supporting a raised FY2026 Broadband revenue guidance of $475-495M.
Harmonic firmographics
Firmographics- Name
- Harmonic
- Legal name
- Harmonic Inc.
- Website
- https://harmonicinc.com
- Company type
- Public
- Founded year
- 1988
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Harmonic (NASDAQ: HLIT) provides the cOS virtualized broadband platform (vCMTS/vOLT/vBNG) plus edge hardware to cable MSOs and telcos globally, supporting DOCSIS and fiber networks on a single unified architecture.
- Ownership category
- akta.pro rank
Harmonic industry classification
Industry- Product category
- Broadband Network Infrastructure
- NAICS
- Computer Systems Design and Related Services (54151), Wired Telecommunications Carriers (517111)
- SIC
- Computer Communications Equipment (3576), Communications Equipment, Nec (3669)
- akta.pro primary industry
- Cable Modems & eMTA (DOCSIS) (HDAFAIAC)
- akta.pro secondary industries
- Multi-Dwelling Unit (MDU) / In-Building Fiber Operators (HDAIACAH), Residential Broadband CPE (DSL/Cable/Fiber Gateways) (HDAFAIAA), Server Operating Systems & Hypervisors (Virtualization) (HDABADAE)
Keywords
Where Harmonic is headquartered
LocationHeadquarters
- HQ city
- San Jose
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Harmonic business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Supply Chain, Marketing or Sales, Operations, Infrastructure
Revenue model
- Broadband Platform Software and Licenses: Software licensing and platform fees from the cOS virtualized broadband platform deployed by cable operators and broadband service providers. Revenue recognized from software subscriptions, perpetual licenses and usage-based models.
- Hardware Sales: Sale of physical network edge devices including DAA nodes (Oyster, Pebble, Ripple), optical nodes (SeaStar), R-OLT modules (Pearl), OLT shelves (Pier, Wharf), and FTTx transceivers (Fin, Jetty). Hardware revenue from selling equipment to operators deploying Harmonic's platform.
- Professional Services: Implementation, deployment, integration and support services provided to operators during network deployments and ongoing operations.
- Managed Services: Ongoing managed services including cOS Central Management, monitoring, and network intelligence services.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | B2B enterprise pricing - custom quotes based on deployment scale and requirements |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Harmonic product offering
Product offeringCore offering
Harmonic provides a cloud-native virtualized broadband platform (cOS, formerly CableOS) that delivers vCMTS, vOLT and vBNG capabilities on common off-the-shelf hardware, supporting both DOCSIS (up to 4.0) and fiber (GPON, XGS-PON, ComboPON) networks from a single unified platform. The platform is complemented by distributed access architecture edge devices, optical nodes, R-OLT modules, OLT shelves and FTTx transceivers, and is sold to cable MSOs, telcos and broadband service providers globally.
Product overview
Harmonic is a pure-play broadband company offering a unified platform-plus-modules architecture centered on its cOS (formerly CableOS) virtualized broadband platform. The core cOS platform provides virtualized cable modem termination system (vCMTS), virtual OLT (vOLT) and virtual BNG capabilities, powering nearly 46 million CPE devices globally. The platform is complemented by network edge hardware devices including distributed access architecture (DAA) nodes (Oyster, Pebble, Pebble-2, Ripple), optical nodes (SeaStar), DAA shelves (Reef, Wave), and FTTx transceivers (Fin, Jetty, Pearl, Wharf/Pier). Management and intelligence are provided through cOS Central Management and the Beacon Intelligent Speed Maximizer. For video operations, Harmonic offers the XOS Advanced Media Processor and VOS360 Media SaaS platform for streaming, playout and content delivery. The product portfolio supports both DOCSIS (up to 4.0) and fiber (GPON, XGS-PON, ComboPON) network architectures with AI-powered network intelligence and operations capabilities.
Differentiator
Problem solved
Functional benefit
Brands
- cOS: Virtualized broadband platform (formerly CableOS) powering next-gen broadband services for cable and fiber operators
- VOS
- XOS
- CableOS
Products and services
- cOS Broadband Platform Virtualized broadband access platform (vCMTS/vOLT) that enables cable operators to deliver multi-gigabit broadband services over both DOCSIS and fiber networks; powers nearly 46 million CPE devices worldwide.
- cOS Central Management Cloud-based network management application providing real-time telemetry, AI-driven insights and proactive network management for cOS-powered networks.
- Beacon Intelligent Speed Maximizer
Quantifiable outcome
- 20:1 rack reduction ratio achieved by operators deploying vCMTS compared to legacy iCMTS infrastructure
- +5 more outcomes
Companies that use Harmonic
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles3 records
Harmonic technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration10 records
AI capability17 records
Feature8 records
Harmonic partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- ATX NetworkscorePartnership integrating ATX's GigaXtend GMC Series 1.8GHz Amplifiers with Harmonic's cOS Virtualized Broadband Platform. Enables cable operators to remotely monitor, configure and diagnose amplifiers through unified management system, reducing operational complexity and minimizing truck rolls while supporting DOCSIS 4.0 adoption.
- ACI CommunicationscoreIntegration of ACI's advanced broadband amplifier portfolio with Harmonic's cOS Virtualized Broadband Platform. Extends cloud intelligence to the network edge, providing real-time visibility, control and automation across access networks for DOCSIS 4.0 transitions.
- Red HatcorePartnership for cloud-native deployment of Harmonic's VOS Media Software on Red Hat OpenShift. Enables hybrid streaming architecture with containerized microservices for service providers.
- NVIDIAcoreNVIDIA GPU acceleration powering Harmonic's AI orchestration service and HD-to-UHD upscaling capabilities for video workflows and streaming services.
- SercommcoreExclusive technology collaboration to advance DOCSIS 4.0 unified technology between Sercomm and Harmonic for the cable broadband industry.
- IMC TechnologiesminorSwiss systems integrator facilitating deployment of Harmonic's XOS Advanced Media Processor for Canal Alpha's playout operations across French-speaking Switzerland.
- Google CloudcoreIntegration of Google Cloud Marketplace in Harmonic's CableOS Cloud-Native Core Platform, unlocking new revenue opportunities for operators through cloud-based deployment options.
Scale indicators9 records
Recent moves8 records
Expansion highlights6 records
Harmonic competitors and assessment
Company assessmentBroad incumbents
- Cisco: Cisco is a broader networking incumbent with cable modem, DOCSIS, and carrier-grade routing portfolios that overlap with Harmonic's broadband platform. Its cable business is part of a much larger networking franchise, giving it scale advantages but less focus on the virtualized CMTS niche where Harmonic leads.
- Nokia: Nokia acquired Gainspeed and built out a cable broadband and mobile anyhaul portfolio that competes with Harmonic for cable MSO and telco fiber business. As a broad telecom incumbent with deep R&D and global carrier relationships, Nokia competes against Harmonic's fiber and virtualized broadband solutions.
Direct peers
- ADTRAN: ADTRAN is a direct competitor in fiber broadband access, GPON/XGS-PON, and broadband customer premises equipment for tier-2/3 operators and telcos. Post-merger with ADTRAN, the combined entity competes for the same fiber deployment wins as Harmonic's cOS fiber solutions.
- Teleste: Teleste is a direct competitor in cable access network equipment, including DAA nodes, amplifiers, and optical solutions for European cable operators. It competes with Harmonic's Pebble, Oyster, and SeaStar product families for similar DOCSIS 4.0 and fiber upgrade contracts.
- Vecima Networks: Vecima is a direct competitor in DOCSIS, DAA, and vCMTS technologies, supplying cable operators with remote PHY devices and Distributed Access Architecture products. It is similar in scale and product focus to Harmonic's broadband business, competing for the same operator upgrade budgets.
- ATX Networks: ATX Networks is a direct competitor in cable outside plant equipment, amplifiers, and optical nodes. Harmonic has even partnered with ATX (GigaXtend GMC amplifiers integration with cOS), indicating both competition and ecosystem collaboration at the network edge.
- Calix: Calix is a direct competitor in the fiber broadband access space, serving regional and tier-2/3 broadband service providers with ONT, OLT, and cloud-managed platforms. Its Smart Home and EXOS platforms target the same broadband operator customers as Harmonic's cOS and Pearl R-OLT products.
- CommScope: CommScope is a direct competitor in cable broadband access equipment (CMTS, DAA, optical nodes, amplifiers). It competes head-to-head with Harmonic for tier-1 cable MSO business and has a broader portfolio of legacy cable access hardware, but has been slower to virtualize the CMTS layer where Harmonic leads.
Emerging players
- Hitron Technologies: Hitron is an emerging player in DOCSIS cable modems, gateways, and CPE, supplying broadband operators globally. It is downstream of Harmonic's vCMTS platform but competes for similar operator mindshare on the customer premises equipment side.
- MaxLinear: MaxLinear is a semiconductor supplier of DOCSIS chipset and broadband modem SoCs used by cable operators. While not a direct platform competitor, it provides enabling silicon for cable modems and CPE that interact with Harmonic's vCMTS, making it both a partner and an adjacent player in the cable broadband ecosystem.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Harmonic social profiles
Digital presenceHarmonic compliance and trust
Trust signalCompliance2 records
Harmonic financial estimates
Financial estimateRevenue estimate
Valuation estimate
Harmonic leadership team
Management profileNumber of profiles
Profiles10 records
Harmonic funding detail
Funding detailFunding overview
Funding rounds1 record
Investors5 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Harmonic M&A and investment
M&A and investmentM&A7 records
Investments1 record
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Harmonic
What does Harmonic do?
Harmonic provides a cloud-native virtualized broadband platform (cOS, formerly CableOS) that delivers vCMTS, vOLT and vBNG capabilities on common off-the-shelf hardware, supporting both DOCSIS (up to 4.0) and fiber (GPON, XGS-PON, ComboPON) networks from a single unified platform. The platform is complemented by distributed access architecture edge devices, optical nodes, R-OLT modules, OLT shelves and FTTx transceivers, and is sold to cable MSOs, telcos and broadband service providers globally.
Is Harmonic a public or private company?
Harmonic is a public company. It is classified as public and is currently operating.
When was Harmonic founded?
Harmonic was founded in 1988. It employs 1,001 to 5,000 people.
Where is Harmonic based?
Harmonic is headquartered in San Jose, United States, in the North America region.
How does Harmonic make money?
Four revenue lines are on record. Broadband Platform Software and Licenses are the primary driver. The others are hardware Sales, professional Services and managed Services.
Who are Harmonic's main competitors?
Broad incumbents on record are Cisco and Nokia. Direct peers are ADTRAN, Teleste, Vecima Networks, ATX Networks, Calix and CommScope. Emerging players are Hitron Technologies and MaxLinear.
Does Harmonic have an API?
No public API is recorded for Harmonic.
What industry is Harmonic in?
Harmonic's product category is Broadband Network Infrastructure. Its primary akta.pro industry code is HDAFAIAC, Cable Modems & eMTA (DOCSIS), with a secondary code of HDAIACAH, Multi-Dwelling Unit (MDU) / In-Building Fiber Operators. Its NAICS code is 54151 and its SIC code is 3576.