Lumilens Valuation ($5.51B) — Series C led by Atreides Management

Overview

Lumilens designs and manufactures optical interconnects for AI data centers from San Jose. The LumiCore platform spans near-package and co-packaged optics for GPU scale-up plus 800G/1.6T+ pluggable transceivers for scale-out fabrics. Founded in 2024 by Ankur Singla, the company says it is already shipping into a top hyperscaler’s production AI clusters under a multi-billion-dollar agreement. Series C (> $700M at $5.51B) was co-led by Atreides, Bain Capital Ventures, Meritech, Seligman Ventures, and Spark Capital, with Addition, Redpoint, Qualcomm Ventures, and others participating — more than $900M raised total.

Why Lumilens is interesting

Emerged from stealth (Aug 2026) with >$700M Series C at $5.51B and a multi-billion hyperscaler shipping agreement — AI’s bottleneck shifted from buying GPUs to wiring them.

Product & use cases

Full optical connectivity stack for AI clusters: NPO/CPO for in-rack GPU scale-up and high-speed pluggables for rack-to-rack scale-out, built on in-house silicon photonics and manufacturing processes.

Scale-out optical capacity for massive GPU fabrics
Scale-up optical I/O to couple thousands of GPUs as one system
Diversify hyperscaler optics supply beyond legacy copper limits

Key facts

Series C (Aug 2026): >$700M at $5.51B; >$900M cumulative (company)
Co-leads: Atreides, Bain Capital Ventures (/fund/bain-capital-ventures), Meritech, Seligman, Spark Capital (/fund/spark-capital)
Participants include Addition (/fund/addition) and Redpoint Ventures (/fund/redpoint-ventures)
Shipping into hyperscaler production under multi-billion agreement (company)
Addresses copper’s ~1.5m reach limit for AI scale-up fabrics

Fundraising history

Series C

2026-08 >$700M Valuation: $5.51B

Atreides Management (lead)
Bain Capital Ventures (lead)
Meritech (lead)
Seligman Ventures (lead)
Spark Capital (lead)
Addition (participant)
Redpoint Ventures (participant)
Qualcomm Ventures (participant)

Source: https://lumilens.com/news-insights/lumilens-emerges-with-900m-in-funding

Investors in our directory

Funds linked from Lumilens's profile — open a fund page for stage focus and related deal articles.

Bain Capital Ventures Spark Capital Addition Redpoint Ventures

Competitive landscape

Edge: Two-year path from founding to hyperscaler production plus a unified LumiCore platform spanning scale-up and scale-out with manufacturing treated as a product.

As AI clusters grow, interconnect scarcity rivals GPU scarcity. Lumilens sells production optics into that gap; customer concentration and manufacturing yield are the underwriting risks.

Incumbent optics vendors (Coherent, Lumentum, etc.) incumbent

Volume pluggables; different full-stack NPO/CPO + manufacturing story.
Nvidia / in-house photonics adjacent

Strategic competitor-partner dynamic on scale-up optics.
Other CPO/NPO startups direct

Crowded interconnect category decided by design-wins and yield.

Industries

Hardware & Semiconductors Infrastructure & Cloud AI & Machine Learning Deep Tech

FAQs about Lumilens

Practical answers founders, operators, and investors typically search for.

Builds optical interconnects that let AI data centers connect GPUs at scale-up and scale-out — replacing copper where physics has hit a wall.

Series C co-led by Atreides, Bain Capital Ventures (/fund/bain-capital-ventures), Meritech, Seligman, and Spark Capital (/fund/spark-capital), with Addition (/fund/addition) and Redpoint (/fund/redpoint-ventures) among others.

Hyperscaler AI infrastructure teams; Lumilens cites production shipments under a multi-billion customer agreement.

Growth-stage private company after a >$700M Series C in August 2026.

No — remains private.

Venture Capital Tracker

Lumilens

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