Lightmatter
ISES Member
Company Profile
Lightmatter is leading the revolution in AI data center infrastructure and enabling the next giant leaps in human progress. The company was founded in 2017 out of MIT, with two of its co-founders – CEO Nick Harris, Ph.D. and Chief Scientist Darius Bunandar, Ph.D. – renowned as preeminent scientists in the field. Lightmatter has raised $850 million in funding by leading investors including Fidelity, Google Ventures, Sequoia, Spark, T Rowe Price, and Viking, and was most recently valued at $4.4 billion. Initially founded in Boston, Lightmatter moved its headquarters to Mountain View in 2023. It currently employs 230 employees across its headquarters in Silicon Valley, as well as offices in Boston, Toronto, Oregon and Arizona.
Product & Services
The company’s groundbreaking Passage™ platform—the world’s first 3D-stacked silicon photonics engine—connects thousands to millions of processors at the speed of light. Designed to eliminate critical data bottlenecks, Lightmatter’s technology enables unparalleled efficiency and scalability for the most advanced AI and high-performance computing workloads, pushing the boundaries of AI infrastructure.