As of 2025, this company was by far the most well funded in the field.
It was founded by some of the authors of the influential paper Deep learning with coherent nanophotonic circuits.
Presented e.g. at youtu.be/t0yj4hBDUsc?t=456 from Video 29. "Silicon Photonics: The Next Silicon Revolution? by Asianometry (2022)".
Bibliography: