Company profile
WhiteMatter
AI agent security and governance (formerly QuilrAI): finds where agents, models and MCP servers are built and used across endpoints, cloud, SaaS and code, routes their traffic through one gateway, and pairs each agent…
- Status
- PrivateListed on CyberMerge Startup Radar (private vendors), snapshot Nov 10, 2026
- Valuation
- Undisclosed
- Latest funding
- Series A · $20M Nov 10, 2026SecurityWeek Source
- HQ
- San Francisco + Austin / US (Startup Radar)
- Last updated
Categories
Funding & valuation
| Date | Round | Amount | Valuation | Source |
|---|---|---|---|---|
| Nov 10, 2026 | Series A | $20M | Undisclosed | SecurityWeekBlumberg Capital led; existing investors Crew Capital and Sprout & Oak participated. Total raised $24M. Formerly QuilrAI. |
Latest signals
- Startup Radar · AI Security · snapshot Nov 10, 2026 10 Nov 2026: $20M Series A led by Blumberg Capital (Crew Capital, Sprout & Oak back in); total raised $24M; valuation Undisclosed (SecurityWeek). Source
Competitors
Same-category peers from CyberMerge Research maps, Startup Radar and What's The Use tags.
- Pluto SecurityPrivateEndpoint AI-workspace security: visibility and real-time control over the AI tools employees use, the…
- RecoPrivateSaaS and AI-agent context graph plus browser/network discovery and prompt/tool-call controls — securing…
- BayPrivateRuntime control for AI agents: inventories the assistants, coding agents, custom agents and MCP servers on…
- IslandPrivateEnterprise browser plus AI Protect: prompts, tool calls, Island MCP Gateway — agentic control plane for…
- Asymptote LabsPrivateRuntime security for the AI agents employees already run: Beacon, an MIT-licensed telemetry layer, records…
- Eve SecurityPrivateAgentic AI runtime security (EveGuard): Agent-in-the-Loop observability, intent/data policy enforcement, and…
- Harmonic SecurityPrivateWorkforce AI security: classifies every AI task, discovers why it is used, and controls it in real time…
- HiddenLayerPrivateModel and agent discovery, AI supply-chain scanning, attack simulation, runtime firewall, AIBOM.
- KontextPrivateRuntime authorization for AI agents: sits between the agent and target systems, checks each requested action…
- OuterlimitPrivateDecentralized security and authorization layer for agentic AI: extends Zero Trust to the agent action layer…
- Token SecurityPrivateAI-agent plus non-human identity discovery, least privilege, and lifecycle.
- ArcjetPrivateRuntime security for AI agents: custom prompt-injection models (Himalia/Thebe/Carme) plus in-code guardrails…
Figures appear only as recorded in CyberMerge data, with source and date. “Undisclosed” means no published figure in our data. Editorial, not investment advice. Last updated . Spot an error? Tell the desk.