Antithesis

release with certainty

Headquarters
Tysons, Virginia
Business Model
SaaS
Last Round
Series ADec 2025
Rounds
2

About

Antithesis is a software reliability platform that uses deterministic simulation to explore the full state space of complex distributed systems, finding bugs missed by traditional testing. It helps fintech, blockchain, databases, and cloud infrastructure teams release safer and faster.

Summary

Antithesis is a Developer Tools company based in Tysons, United States. Its most recent funding was a Series A round in Dec 2025. Investors include Amplify Venture Partners, Jane Street and Spark Capital.

Tech & App Stack

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Funding History

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Investors

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