Antithesis has raised an additional $30 million in funding led by Amplify Partners, with participation from Spark Capital, and has added Lenny Pruss, General Partner at Amplify Partners, to its board of directors. Clay Fisher, General Partner - Growth at Spark Capital, has also joined as a board observer.

Antithesis is a first-of-its-kind continuous reliability platform that autonomously searches for software bugs in a fully deterministic simulated environment without impacting production systems. The company, which is based in Northern Virginia, was founded in 2018 and launched out of stealth in 2024.