Optical networking startup Lumilens launches with $900M in funding
$5.51B valuation. Lumilens just raised $900M to build the networking silicon that connects AI clusters—and the big cloud players are betting it's critical infrastructure.
Why it matters
Optical networking is becoming a capital-intensive bottleneck in the AI buildout. This $900M round signals that investors see interconnect chips—not just accelerators—as a defensible, high-value piece of the compute stack. Practitioners deploying large-scale AI infrastructure need to track who owns the plumbing.
The key facts
5 to knowLumilens raised $900M total ($700M Series C)
Valuation: $5.51B post-money
Lead investors: Atreides Management, Bain Capital Ventures, Meritech, Seligman Ventures, Spark Capital
Focus: optical networking chips for AI clusters
Company stage: launch/public announcement
Go to the source
SiliconAnglesiliconangle.com
Publisher excerpt: Lumilens Inc., a provider of optical networking chips for artificial intelligence clusters, launched today with $900 million in funding. The company raised the bulk of the capital, $700 million, through a Series C round that valued it at $5.51 billion. Atreides Management, Bain Capital Ventures,…