Antithesis
release with certainty
- Headquarters
- Tysons, Virginia
- Business Model
- SaaS
- Website
- antithesis.com
- 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 Partners, Jane Street and Spark Capital.
Tech & App Stack
7 technologies & apps tracked
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Dec 2025
Sign up to see all 2 rounds
Full funding history, per-round amounts, and investor participation.
Investors
.png){kind=avatar}
Similar Companies
AI startup building artificial general engineer for physical-world robotics and automation.
Economic infrastructure for the internet.
Leading interactive entertainment company and developer of Fortnite, Unreal Engine, and the Epic ...
Cursor is the best way to code with AI, and built to make you extraordinarily productive.
Mistral is on a mission to push AI forward, to serve the open community and their enterprise cust...
Provides AI inference hardware and cloud platform for enterprises, using RDUs and SambaCloud to r...