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HLIT customer relationships

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HLIT customer relationship map

Harmonic (HLIT) — Customer Map and What It Means for Investors

Harmonic sells software-defined broadband access platforms and video delivery infrastructure to large service providers, broadcasters and streaming businesses, monetizing through a mix of hardware appliance sales, perpetual licenses, professional services and an expanding SaaS subscription line. Revenue today is a hybrid of one‑time appliance/integration work and recurring SaaS/service fees; strategic customer wins for the cOS broadband platform drive high‑visibility, multi‑year economic opportunity. For deeper relationship intelligence, visit https://nullexposure.com/.

How Harmonic actually gets paid (and the implications)

Harmonic runs two complementary commercial engines: Broadband (cOS software + OLT/DAA hardware + integration) and Video (appliances, VOS SaaS and professional services). The company recognizes appliance and integration revenue at shipment while SaaS and usage‑based fees are recognized over the subscription term, producing a mix of upfront and recurring cash flow. Company filings and investor commentary show the business model is intentionally transitioning toward recurring SaaS for Video while maintaining a large installed‑base appliance business in Broadband.

Key operating characteristics that shape investor risk and upside:

  • Contracting posture: a blend of licensing, subscriptions and short‑term support agreements; some revenue is usage‑based while larger cOS deals have long sales cycles and multi‑year remaining performance obligations. This drives lumpy bookings but steadier long‑term recurring revenue as SaaS penetration grows.
  • Concentration: material customer concentration is explicit — Comcast accounted for ~44% and Charter ~18% of net revenue in 2024, and the top 10 customers generated ~72% of revenue in 2024. That concentration elevates client risk while underscoring the importance of a few marquee relationships.
  • Counterparty mix and criticality: customers are predominantly large service providers and resellers; Harmonic plays a critical vendor role for major carriers, especially in broadband network upgrades.
  • Geography and scale: the Americas dominate revenue (about 82% of 2024 sales), with EMEA and APAC smaller but strategically important markets; the business operates globally and is exposed to cross‑border regulatory and FX dynamics.
  • Maturity and runway: cOS and VOS position Harmonic toward software and cloud economics, but hardware appliance sales still drive near‑term margins — a deliberate dual posture that creates both resiliency and transition risk.

For relationship-level diligence on the names executing Harmonic’s strategy, read the list below — every relationship in the public results is summarized with source context.

Who the customers (and acquirers) are — one‑line takeaways with sources

  • izzi (Mexico) — Izzi has selected Harmonic’s cOS platform and remote OLT hardware to support a multi‑year strategic fiber broadband expansion, positioning Harmonic as a core broadband supplier in Mexico. This was disclosed on the company Q4 2025 earnings call and reported in investor news in early 2026.
    Source: Q4 2025 earnings call; FY2026 news reports (Feb–Mar 2026).

  • Vodafone Germany (VOD) — Harmonic completed a DOCSIS 4.0 field validation with Vodafone Germany, signaling technology maturity and progression from trials to early commercial node shipments.
    Source: Q4 2025 earnings call and market press coverage (2026).

  • Mk Systems USA Inc. — Marketscreener reported that Mk Systems USA entered into an agreement to acquire Harmonic’s Video business for approximately $150 million (reported Dec 8, 2025). This buyer report indicates third‑party interest in the Video assets.
    Source: Marketscreener news item, FY2025 (Dec 2025 report).

  • New England Sports Network (NESN) — NESN chose Harmonic, in conjunction with Astound Business Solutions, as its enterprise technology partner for primary live sports distribution — a strategic Video/SaaS customer win for premium live content.
    Source: TVTechnology news report, FY2025 (published 2026).

  • MediaKind — Multiple outlets reported MediaKind announced an agreement to acquire Harmonic’s Video business for roughly US$145 million, positioning the Video assets to join an established cloud streaming platform vendor.
    Source: MediaKind press announcements and industry news (FY2025/FY2026).

  • Alcom (Finland) — Alcom selected Harmonic’s XOS Advanced Media Processor to power a white‑label headend video service, highlighting uptake among European mid‑size operators for Harmonic’s video processing stack.
    Source: Company news and industry coverage (announced FY2025/FY2026).

  • Vyve Broadband — Vyve has selected Harmonic’s cOS virtualized broadband platform to modernize its network across multi‑state operations, a signed commercial deployment publicized in press releases and investor materials.
    Source: Harmonic press release and MarketScreener/PRNewswire coverage (FY2025/FY2026).

  • Charter Communications (CHTR) — Charter is cited repeatedly as a marquee broadband customer; filings show Charter accounted for a material portion of revenue (18% in 2024), underscoring its strategic importance to Harmonic’s broadband business.
    Source: 2024 Form 10‑K / FY2024 disclosure.

  • Comcast (CMCSA) — Comcast is the single largest customer, representing approximately 44% of net revenue in 2024, which frames customer‑concentration risk and bargaining leverage in commercial negotiations.
    Source: 2024 Form 10‑K / FY2024 disclosure.

  • Telia (TELIA.ST) — Harmonic cited a Telia deployment in Norway as part of a broadband modernization effort using the cOS platform, contributing to international revenue growth in Europe.
    Source: Q4 2025 earnings commentary and FY2026 summaries.

How these relationships shape the investment case

  • Upside drivers: major Tier‑1 wins (Comcast, Charter, Vodafone, Telia, izzi, Vyve) validate the cOS broadband strategy and create multi‑year backlog and recurring SaaS opportunities; enterprise video contracts (NESN) and the reported Video business sale(s) unlock strategic focus and potential balance‑sheet proceeds.
  • Key risks: high customer concentration, reliance on a few large carriers for the bulk of revenue, and the lumpy nature of appliance sales as customers transition to SaaS; any slowdown in Tier‑1 spending disproportionately affects near‑term results. Regulatory, FX and supply chain exposures are persistent given the global footprint.
  • Operational posture: expect continuing mixed contracting — short‑term service SLAs and professional services combined with long sales cycles for cOS and increasing subscription/usage revenue that will change revenue recognition and margin dynamics over time.

If you want structured relationship scoring and exposure maps for HLIT’s customer base, explore our intelligence hub at https://nullexposure.com/ for the full view.

Bottom line — what an investor should take away

Harmonic is transitioning from a hardware‑weighted vendor to a software/SaaS‑centric supplier while keeping large carrier relationships that materially drive revenue. That transition creates tradeoffs: recurring revenue growth and higher gross margins over time versus near‑term variability tied to appliance project timing and concentrated counterparties. For active investors and operators assessing HLIT exposure, the two critical lenses are (1) how quickly SaaS/usage revenue replaces appliance lumpiness and (2) the status and renewal posture of the few Tier‑1 customers that account for the majority of revenue. For additional relationship analytics and to monitor bookings and divestiture developments, visit https://nullexposure.com/.