# WhiteMatter (formerly QuilrAI)

> Enterprise AI-agent security and governance layer that discovers agents, pairs each with a policy Guardian, and checks tool calls before execution.

## Why it is interesting

November 10, 2026 company-issued release confirms a $20M Series A led by Blumberg Capital, with Crew Capital and Sprout & Oak participating. WhiteMatter (formerly QuilrAI) claims 2.25M Guardian agents under management and 116B interactions, but these are NOT 2.25M separately paying customers or independently audited results. Business Insider's founder interview indicates flat-fee pricing by managed agent count, but no public price. Product has gateways, browser/endpoint coverage, approved catalogs and identity-aware pre-execution controls, facing competition from Zenity, Noma and Onyx.

## Profile

- **Latest funding:** Series A — $20M (November 10, 2026)
- **Latest known valuation:** Undisclosed (November 10, 2026)
- **Total disclosed equity funding:** $20M
- **Stage:** series-a
- **Status:** private
- **Industries:** N/A
- **Coverage:** full
- **Last updated:** 2026-11-11
- **Latest funding investors:** Blumberg Capital, Crew Capital, Sprout & Oak

## Key facts

- $20M Series A disclosed November 10, 2026, led by Blumberg Capital.
- QuilrAI rebranded to WhiteMatter; do not create a separate new startup or prior funding event from the rename.
- Guardian agents under management are vendor-reported control instances, not distinct customers, revenue or proof of breach prevention.
- Named customer statements from Sentara and Alter Domus are company-selected testimonials, not controlled ROI studies.
- Vendor website has conflicting default raw-prompt storage statements (homepage: no storage by default; security page: 14 days default); exact plan/deployment conditions should be clarified.

## Funding history

- Series A · $20M · November 10, 2026
  Source: https://www.prnewswire.com/news-releases/whitematter-raises-20m-series-a-to-close-the-growing-gap-between-ai-autonomy-and-enterprise-governance-302934477.html

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** November 11, 2026

**Editorial note:** AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.

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Source: https://venturecapitaltracker.com/startup/whitematter-ai-security