Why it ranks
How the rank works- team of 8Team size · YC's directory+4.9
- went through YCProgram · this site+4
- hiringHiring · Titles (titles.fru.dev), YC+2
A sum of public facts, not a judgement and not investment advice.
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
| AI | Active | YCF24 | |
| AI | Active | YCW17 | |
| AI | Active | YCS26 | |
| AI | Not stated | 500 GlobalGA 27 | |
| Devtools | Inactive | YCS19 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
| AI | Active | YCW24 | |
| Other | Not stated | EF2019 | |
| AI | Active | YCS22 | |
| WorfShared: security operation, agentAlchemist Class 34Not statedAI | AI | Not stated | AlchemistClass 34 |
| AI, Devtools | Active | YCF26 |
Also from X25 in AI
All of X25| Company | Category | Status |
|---|---|---|
| AI | Active | |
| AI, Devtools | Acquired | |
| AI, Devtools | Active | |
| AI, Devtools | Active | |
| AI, Devtools | Active | |
| AI | Active |
Founders
- Max PollardFounder/CEO
- Logan CarmodyFounder/CTO
- Eddie ConkFounder/CPO
About Cotool
Cotool builds AI agents and the infrastructure around them to help security teams detect threats, investigate alerts, hunt for attacks, and respond. Our agents work across a team's security tools and data. They investigate alerts, write and tune Python detections, and turn threat intelligence into hunts and new coverage. Teams can customize agents around their workflows, inspect the evidence, edit detection logic, and bring humans in when judgment or approval matters. Underneath the agents, Cotool provides log storage and search built for their workloads, with access to data where it already lives. The goal is to give security teams more capacity to defend their companies as their environments and workloads grow. Teams at Ramp, EliseAI, ClickHouse, Legora, and many more use Cotool.
- YC batch
- X25 · Spring 2025
- Status, per YC
- Active
- Category
- AI
- Team size
- 8
- Location
- San Francisco, CA, USA
- Founded
- 2025
- Checked
- 6h ago
YC tags: SaaS, Compliance, Security, Cybersecurity
Changes seen
Cotool: questions
Which YC batch was Cotool in?
Cotool was in Y Combinator's Spring 2025 batch (X25).
Is Cotool still active?
Y Combinator lists Cotool as active.
Who founded Cotool?
Cotool's founders, as listed on its YC page: Max Pollard (Founder/CEO), Logan Carmody (Founder/CTO), Eddie Conk (Founder/CPO).
Where is Cotool based?
Cotool lists San Francisco, CA, USA as its location on YC's directory.