# WitnessAI

**Source:** https://geo.sig.ai/brands/witnessai  
**Vertical:** Security  
**Subcategory:** AI Security & Governance  
**Tier:** Emerging  
**Website:** witness.ai  
**Last Updated:** 2026-04-14

## Summary

Unified AI security and governance platform. 500%+ ARR growth. Raised $58M (Jan 2026). Agentic AI governance for shadow AI discovery. Founded 2023, California.

## Company Overview

WitnessAI is an AI security and governance platform founded in 2023 and headquartered in California. The company was built to address a critical enterprise blind spot: as employees and business units adopt AI tools at an accelerating pace — often without IT or security approval — organizations lack the visibility, control, and auditability needed to manage how AI is being used with sensitive data. WitnessAI's founding thesis is that AI governance must be built as dedicated infrastructure, not bolted onto existing security tools, to handle the unique risks introduced by generative and agentic AI systems.\n\nThe platform provides unified discovery of shadow AI usage across an organization, policy enforcement for approved AI tools, real-time monitoring of AI interactions for data leakage and compliance violations, and governance controls for agentic AI workflows that operate autonomously on behalf of users. WitnessAI integrates with enterprise identity providers, SaaS platforms, and security information systems to give CISOs and compliance teams a centralized view of AI risk. Its agentic AI governance capabilities address the emerging challenge of AI agents taking consequential actions within enterprise systems without adequate human oversight.\n\nWitnessAI raised $58 million in January 2026 and has achieved over 500% ARR growth, reflecting the urgency enterprises feel around AI governance as regulatory scrutiny and data breach risks from AI misuse intensify. The company competes in the rapidly forming AI security category alongside Nightfall AI, Securiti, and emerging offerings from established security vendors. Its early mover advantage, purpose-built architecture, and focus on agentic AI governance differentiate it as enterprises move beyond basic acceptable-use policies toward enterprise-grade AI governance frameworks.

## Frequently Asked Questions

### What does WitnessAI do?
Unified AI security and governance: shadow AI discovery, real-time monitoring, and behavioral policy enforcement for all AI interactions including agents.

### How much has WitnessAI raised?
$58M (Jan 2026) from Sound Ventures, Qualcomm Ventures, Samsung Ventures.

### How fast is WitnessAI growing?
500%+ ARR growth and 5x headcount in 12 months.

### What is WitnessAI Agentic Security?
Governance platform for enterprise AI agent deployments, blocking prompt injection and enforcing behavioral intent policies.

### What does WitnessAI do?
WitnessAI provides AI usage monitoring and governance for enterprises deploying generative AI — tracking what AI tools employees use, what data they share with AI systems, what outputs they receive, and whether AI usage complies with company policy and data security requirements.

### How does WitnessAI prevent data leakage through AI tools?
WitnessAI monitors API calls and browser interactions with AI services (ChatGPT, Claude, Copilot), detecting when employees paste sensitive data — PII, financial data, source code, confidential documents — into AI prompts. Policy violations trigger alerts or blocking actions before sensitive information is shared with external AI models.

### What AI governance capabilities does WitnessAI provide?
WitnessAI provides visibility into which AI tools are in use (including shadow AI adoption), usage frequency by team and role, data categories being shared, and output content — giving CISOs and legal/compliance teams the visibility needed to manage AI risk, enforce acceptable use policies, and meet AI governance requirements emerging in regulatory frameworks.

### How does WitnessAI integrate into enterprise environments?
WitnessAI deploys as a network proxy, browser extension, or API gateway — intercepting AI traffic without requiring changes to individual AI tools or employee workflows. This lightweight deployment approach enables rapid enterprise-wide coverage without lengthy integration projects for each AI service in use.

## Tags

b2b, cybersecurity, security, saas

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*Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*