Startup profile · funding coverage
Cotool funding, valuation and investors
AI agent operating system for cybersecurity detection and response teams.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Seed
$7.4M · 2026
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$7.4M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
seed
Investors in latest funding
Lead: Andreessen Horowitz
Overview
Cotool builds an AI agent platform for cybersecurity detection and response, automating triage, investigation, and response workflows for SOC teams. The company raised a $7.4M seed round in 2026 led by Andreessen Horowitz with Y Combinator, WndrCo, and Homebrew participating. Cotool positions agents as collaborators that execute playbooks alongside analysts rather than replacing human judgment entirely — aligned with broader agentic AI adoption in enterprise security.
Why Cotool is interesting
Agentic security ops for defenders — a16z-led $7.4M seed with YC backing as SOC teams face alert fatigue and AI attacker volume.
Product & use cases
AI agent OS for SOC — orchestrates investigation steps, tool calls, and response actions across security stack with human oversight.
- Automating alert triage and enrichment in SOCs
- Agent-driven incident investigation playbooks
- Reducing mean time to respond for mid-market security teams
Key facts
- Seed (2026): $7.4M led by a16z; YC, WndrCo, Homebrew (Cotool blog)
- AI agent OS for detection and response
Funding history (newest first)
Investors in our directory
Funds linked from Cotool's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Agent-native architecture from launch vs. legacy SIEM bolt-on AI features.
SOC automation is crowded as AI hype meets security budget scrutiny. Cotool's a16z + YC seed validates agentic approach. Must prove accuracy on real enterprise alerts vs. demo playbooks.
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Dropzone AI direct
AI SOC analyst automation startups.
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Splunk / Microsoft Sentinel AI incumbent
Platform incumbents adding copilots.
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Torq / SOAR platforms adjacent
Security orchestration; less agent-native.
Notable stories
- Cotool launched into 2026 agentic security wave alongside broader enterprise AI agent adoption.
- Y Combinator participation signals early GTM through startup security buyers.
Industries
Market / IPO context
Editorial / static context — not a live quote.
Related funding articles
Venture Capital Tracker pieces that cover Cotool's financing or category context.
FAQs about Cotool
Practical answers founders, operators, and investors typically search for.
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