Silicom Ltd. filed an 8-K press release on November 4, 2026, announcing an expanded relationship with an existing cyber security customer, with total business from that customer expected to exceed $10 million in 2027.

Key Highlights

  • Fifth cyber security win of 2026: The expansion is Silicom's fifth cyber security customer win out of nine total wins recorded so far in 2026, according to the filing.
  • $10 million threshold projected: Silicom disclosed it expects total business with this customer to exceed $10 million in 2027.
  • Cyber security is Silicom's largest market: The filing states cyber security accounts for approximately one-third of the company's total revenues.
  • Four-year relationship: Silicom CEO Liron Eizenman noted the company began working with this customer four years ago.
  • New 5G use case added: The filing identifies the introduction of 5G connectivity as among the most recent additional use cases selected by the customer.
  • Edge devices selected: The customer has chosen Silicom's edge devices for multiple additional use cases, the company disclosed.

Silicom Expands with Long-Standing Cyber Security Customer

Silicom Ltd. (NASDAQ:SILC), headquartered in Kfar Sava, Israel, announced on November 4, 2026, that an unnamed long-standing cyber security customer has selected its edge devices for multiple additional use cases. According to the filing, this expansion represents the fifth cyber security win for Silicom out of nine total wins recorded in 2026 to date. The company disclosed that cyber security now represents approximately one-third of its total revenues, making it Silicom's largest market.

The filing states that Silicom expects its total business with the customer to exceed $10 million in 2027. CEO Liron Eizenman, quoted in the press release, attributed the expansion to a four-year relationship with the customer and cited the recent introduction of 5G connectivity as one of the new use cases. Mr. Eizenman characterized the arrangement as providing "a solid, predictable base of recurring revenues," noting that the company is "already exploring further products and use cases with this customer."

The company describes its product portfolio as including high-speed server adapters, FPGA-based smart cards, AI NICs, Post Quantum Cryptography hardware accelerators, white label switches, and edge CPEs. The filing contains forward-looking statements, including the $10 million 2027 revenue expectation, which the company cautions are subject to known and unknown risks and uncertainties, including customer purchasing cycle fluctuations and geopolitical factors. The company disclaims any duty to update such statements.

What Was Disclosed

Silicom disclosed a cyber security customer expansion involving edge devices for multiple new use cases, including 5G connectivity, with total 2027 business from that customer expected to exceed $10 million. Cyber security was identified as approximately one-third of company revenues.