ROOST
ROOST (Robust Open Online Safety Tools) is a U.S. nonprofit launched at the February 2025 Paris AI Action Summit and incubated at Columbia University's Institute of Global Politics.
About
ROOST (Robust Open Online Safety Tools) is a U.S. nonprofit launched at the February 2025 Paris AI Action Summit and incubated at Columbia University's Institute of Global Politics. Backed by founding partners including Google, OpenAI, Discord and Roblox, it builds free, open-source trust-and-safety infrastructure such as the Osprey abuse-detection rules engine, the Coop review workspace and the ROOST Model Community for AI safety models.
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Founders / team· 4
Comparable companies· by market
This company
BusinessLatest roundTotal raisedDate- ROOST
ROOST (Robust Open Online Safety Tools) is a U.S. nonprofit launched at the February 2025 Paris AI Action Summit and incubated at Columbia University's Institute of Global Politics. Backed by founding partners including Google, OpenAI, Discord and Roblox, it builds free, open-source trust-and-safety infrastructure such as the Osprey abuse-detection rules engine, the Coop review workspace and the ROOST Model Community for AI safety models.
$27M
$27M
United States
BusinessLatest roundTotal raisedDate- Cinder
Cinder is a trust & safety operations platform founded by former Meta security, counterterrorism and policy leaders. It unifies case management, investigations, policy enforcement and content moderation, and uses AI agents to screen prompts and AI outputs, automate most moderation decisions and red-team models; customers include OpenAI, Character.AI, Midjourney and ElevenLabs.
$55M
$55M - JetStream Security
Enterprise AI governance and security platform that treats AI workflows as first-class production systems, continuously mapping, monitoring and controlling them to close governance blind spots in enterprise AI adoption
Seed · $68M · 2026-03
$68M - Virtue AI
Testing, monitoring and security tools for AI systems
Undisclosed · $30M · 2025-04
$30M
China
BusinessLatest roundTotal raisedDateEurope
BusinessLatest roundTotal raisedDate- Geordie
Security visibility and risk control platform for enterprises adopting AI agents
Series A · $37M · 2026-05 · Valuation $180M
$37MValuation $180M - Lakera
Protects enterprises from LLM security vulnerabilities such as prompt injection and data leakage
Series A · $30M · 2024-07
$30M - NeuralTrust
AI agent security platform for enterprises to discover, monitor and govern autonomous AI agents and block malicious interactions
Seed · $20M · 2026-06
$20M
Other / unspecified
BusinessLatest roundTotal raisedDate- Pluto Security
AI workspace security: monitoring and control of security risks from employee use of AI tools, AI agents and MCP servers
Series A · $42M · 2026-10
$42M - Knostic
AI security tools that control access to enterprise information
Undisclosed · $14M · 2025-03
$14M - Capsule Security
Runtime security and trust layer for AI agents
Seed · $14M · 2026-04
$14M
Confirmed rounds only. Matched on subsector, sector, stage and funding scale — each verifiable on the company profiles.
Investors that may fit
Y Combinator
23 Security & Compliance deals in the last 24 months · 21 in US East Coast
Request intro →Andreessen Horowitz
18 Security & Compliance deals in the last 24 months · 16 in US East Coast
Request intro →Cyberstarts
18 Security & Compliance deals in the last 24 months · 14 in US East Coast
Request intro →Greylock Partners
14 Security & Compliance deals in the last 24 months · 12 in US East Coast
Request intro →Ten Eleven Ventures
14 Security & Compliance deals in the last 24 months · 7 in US East Coast
Request intro →Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.