Free tools Windows power users keep installed
One-click scans. No signup required.
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Lightmatter announced a $400 million Series D on October 16, 2024, at a company-stated valuation of $4.4 billion. The company said it had raised $850 million in total to date. The financing was intended to prepare its Passage photonic interconnect for deployment in partner data centers.
Who led Lightmatter’s Series D?
Lightmatter said new investors advised by T. Rowe Price Associates, Inc. led the round. It named Fidelity Management & Research Company and GV (Google Ventures) among the existing investors that participated. The announcement did not provide a breakdown of how much each investor contributed or disclose other investment terms. Lightmatter’s October 16, 2024 announcement
What did Lightmatter say it would fund?
The company said the financing would ready Passage for mass deployment in partner data centers. Passage is part of Lightmatter’s photonic infrastructure for AI systems; the company’s portfolio includes interconnects and lasers. Lightmatter described the product as a way to address the demands of scaling AI computing, but its funding announcement did not establish deployment outcomes or provide a detailed allocation of the proceeds. Lightmatter company overview
Co-founder and CEO Nick Harris said: “With Passage, the world’s fastest photonic engine, we’re setting a new standard for performance and breaking through the barriers that limit AI computing.” “World’s fastest” is Lightmatter’s characterization, not an independently verified comparison. Lightmatter’s announcement
#1 Best Overall
How should the valuation and total raised be read?
The $4.4 billion valuation and $850 million total raised are figures Lightmatter stated in its 2024 announcement. They are not independent audited financial figures, and the release does not provide enough information to infer the round’s investment terms from them.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the Series D still recent?
No. The Series D was announced on October 16, 2024, so it is historical financing news rather than a current announcement. Lightmatter’s press-release archive lists later company announcements through September 17, 2026; that archive alone does not establish whether the company has completed another financing round.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
