Ayar Labs raises $155M Series D

Ayar Labs/TeraPHY optical I/O

Ayar Labs raised $155 million in Series D led by Advent Global Opportunities and Light Street Capital, with AMD, Intel Capital and NVIDIA participating. Total funding reached $370 million with valuation above $1 billion, targeting high-volume manufacturing of TeraPHY optical interconnects for AI infrastructure.

• $155M Series D brings total funding to $370M and valuation above $1B; led by Advent Global Opportunities and Light Street Capital.
• AMD Ventures, Intel Capital and NVIDIA joined the round, signaling semiconductor industry confidence in Ayar Labs' optical I/O technology for AI chips.
• TeraPHY Optical Engine moves data between processors with light instead of copper wiring, cutting power and latency; capital accelerates high-volume manufacturing.