Ayar Labs
Ayar Labs is a Photonics & Interconnects company founded in 2015 and based in San Jose, USA. It has raised $844M in total funding, most recently a Series E in 2026 at a $3.8B valuation.
Ayar Labs develops chiplet-based optical I/O solutions that replace electrical interconnects in AI and HPC systems. Raised $870M+; TeraPHY optical chiplet in production. Nvidia, AMD, and Intel among investors. Spun out of MIT/Berkeley research.
Ayar Labs enables orders-of-magnitude improvements in chip-to-chip bandwidth and power efficiency for AI clusters.
ayarlabs.com ↗·Photonics & Interconnects·USA·private 
