Achronix Semiconductor Corporation is an American fabless semiconductor company based in Santa Clara, California with an additional R&D facility in Bangalore, India,[2][3] and an additional sales office in Shenzhen, China.

Achronix was founded in 2004 in Ithaca, New York based on technology licensed from Cornell University.

[5] In 2006, Achronix moved its headquarters to Silicon Valley.

[6][7] Achronix was originally self-funded by several million dollars of founder's capital.

[8] In July 2021 Achronix cancelled its plans to go public through a merger with a special acquisition (SPAC) company ACE Convergence Acquisition Corp due to regulatory approval difficulties.