Building for the Best
Cotool is our vision of how security work should be: faster, simpler, and less exhausting.
Cotool's mission is to scale defensive security with tokens.
Attackers already operate this way: they express intent to AI, fork across variations, probe at scale, and iterate instantly. Campaigns that once required coordinated teams now run on inference, becoming more potent as models improve. The marginal cost of an attack trends toward zero.
Defenders deserve the same compounding advantage.
The best security teams shouldn't be limited by headcount; they should be limited by ambition. Cotool enables security teams to operate at machine speed: coverage that expands with your threat surface, investigations that complete in seconds, and detection logic that encodes what you're actually worried about.
We're building the infrastructure practitioners always deserved. It multiplies judgment rather than replacing it, closes the loop between detection and response, and gets stronger the same way threats do.
The Team




Work with us
Competitive Salary and Equity
Healthcare, Dental, & Vision Coverage
Unlimited PTO
Beautiful Office in San Francisco
Team Off-sites twice a year
Unlimited Token budget
Backed by the best



