Salience Labs raises $125 million for optical AI data center switches

Oct 15, 2026
Salience Labs raised $125 million in Series B funding to expand manufacturing and deploy its optical circuit switching technology for AI data centers.

Salience Labs raised $125 million in an oversubscribed Series B round, according to Tech.eu. Bullhound Capital led the round, with participation from AMD Ventures, Intel Capital, SBI Group, Hudson River Trading, British Business Bank and existing investors.

Salience Labs develops optical circuit switching chips that connect GPUs across multiple data center racks. Its architecture routes data optically to reduce the electrical conversions used in conventional networks.

The company demonstrated a 64 port optical photonic switch at ECOC 2026 and is developing 128 port and 256 port versions. It will use the funding to expand manufacturing, deploy its technology, develop additional switches, grow its engineering team and enter more geographic markets.

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