Optical networking startup Lumilens emerges from stealth with $900M funding at $5.5B valuation

Aug 6, 2026

Optical networking startup Lumilens has emerged from stealth with over $900 million in total funding, including a $700 million Series C round co-led by Bain Capital Ventures and Spark Capital that values the company at $5.51 billion. Led by CEO Ankur Singla, the startup aims to replace performance-limited copper data center wires with high-speed optical interconnects. Lumilens has already begun shipping equipment to an unnamed hyperscale cloud provider under a deal it claims is worth billions.

Lumilens $900M funding round

▪Lumilens raised $700 million in a Series C funding round that valued the two-year-old San Jose-based company at $5.51 billion.
▪Optical networking startup Lumilens emerged from stealth on August 6, 2026, with more than $900 million in total funding since its founding.
▪The Series C funding round for Lumilens was co-led by Atreides Management, Bain Capital Ventures, Meritech, Seligman Ventures, and Spark Capital.

Copper distance limitations AI

▪Copper wiring hits a distance limitation of approximately one meter when data transmission speeds reach 1.6 terabits per second.
▪At artificial intelligence speeds, electrical signals survive only about 1.5 meters over copper wires, capping tightly linked clusters at a few hundred chips.

Co-packaged optics products

▪Lumilens Chief Executive Officer Ankur Singla stated that large-scale volume deployment of co-packaged optics is approximately two to three years away.
▪Lumilens is targeting the scale-up market with co-packaged optics chips that integrate directly into graphics processing units to link thousands of chips.

Near-packaged optics products

▪Lumilens taped out its first near-packaged optics chip in 2024 and has taped out its second-generation chips for commercial deployment in 2027.
▪Lumilens manufactures near-packaged optics chips that sit on the hosting motherboard rather than integrating directly into graphics processing units.

LumiCore chip architecture

▪Lumilens claims its LumiCore architecture reduces chip development time from years to months and simplifies assembly via custom robotic and AI workflows.
▪Lumilens chips are built on a common architecture called LumiCore, which includes photonic components, mixed-signal integrated circuits, and interposers.

Hyperscaler deployment agreements

▪Lumilens has begun shipping its optical networking equipment into the live data centers of an unnamed major hyperscale cloud provider.
▪Lumilens claims its supply agreement with the unnamed hyperscaler is worth billions of dollars over the next several years.