Antithesis is a company that provides a fundamentally new way to validate software correctness before release. It conducts fully deterministic, massively parallel simulations that test years of real-world production in a few hours, ensuring systems behave as intended by exploring codebase corners and injecting common faults.
Estimated Valuation
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Leadership & Board
- Current Number of Employees
- 242
- Current LinkedIn Followers
- 10,125
Latest Estimated Valuation
- Total Amount Raised
- $105M
- Total Funding Rounds
- 1
- Latest Funding Amount
- $105M
- Latest Funding Round
- Series A
Employee Trend
Antithesis had 242 employees as of October 26, 2026. The number of employees increased by 0 (0.00%) week-over-week.
242Latest Employee Count
0(0.00%)Week-Over-Week Change
Social Trend
Antithesis had 10,125 followers as of October 26, 2026. The number of followers increased by 94 (0.94%) week-over-week.
10,125Latest Followers Count
94(0.94%)Week-Over-Week Change
Funding Round
| Funding Date | Funding Round | Amount Raised | Post-Money Valuation |
|---|---|---|---|
| Dec 03, 2025 | Series A | $105.00M | ― |
Investors
| Investor Name | Funding Round |
|---|---|
| Teamworthy Ventures | Series A |
| Jane Street | Series A |
| Spark Capital | Series A |
| Patrick Collison | Series A |
| Tamarack Global | Series A |
| Amplify Venture Partners | Series A |
| First In Ventures | Series A |
| Hyperion Capital | Series A |
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