# WitnessAI

> WitnessAI is an enterprise AI security and governance platform that helps organizations safely deploy AI at scale. Built on three pillars - Observe, Protect, and Control - its platform provides real-time visibility into all AI interactions (employee tools, internal models, AI agents, MCP servers), detects and blocks prompt injections and jailbreaks with over 99% accuracy using intent-based ML models, and enforces behavioral policies without code changes. With $85.5M in total funding, 500% ARR growth in 2025, and customers across financial services, telecom, airlines, and automotive, WitnessAI is positioning itself as the confidence layer enterprises need to move from AI experimentation to production deployment.

- **Founded:** 2023
- **Headquarters:** Mountain View, California, United States
- **Founders:** Rick Caccia (CEO & Co-Founder), Gil Spencer (CTO & Co-Founder)
- **Team size:** ~100 employees (5x headcount growth in 2025)
- **Products:** Observe, Protect, Control, Witness Attack, Witness Protect
- **Notable:** Named to Fortune Cyber 60 list (2025) - top venture-backed cybersecurity companies, SC Awards Finalist for Best Compliance Solution (2025), 500% ARR growth in 12 months through 2025

## Products & services

- **Observe** — Network-layer AI visibility module that discovers and catalogs all AI usage including shadow AI, employee chatbots, AI agents, MCP servers, and tool usage - without code changes or agents.
- **Protect** — Real-time AI security module with intent-based detection that blocks prompt injection attacks, jailbreaks, and data exfiltration with over 99% accuracy using custom-tuned ML models.
- **Control** — Governance and compliance module providing behavioral policy enforcement, role-based access controls, real-time data redaction, audit trails, and regulatory reporting (PCI DSS 4.0.1).
- **Witness Attack** — Automated red-teaming tool that pressure-tests LLMs before deployment using multimodal attacks, multi-step jailbreaks, fuzzing, and reinforcement-learning attack simulations across 100+ LLM types.
- **Witness Protect** — Behavioral runtime protection product featuring prompt filtering, intent-based response control, real-time data redaction, and threat detection compatible with 100+ LLM types.
- **Agentic Security** — Governance layer for AI agents that monitors agent lifecycles, MCP server connections and tool access, tracks data sharing, and provides human-agent identity connection for explainability.

## Achievements

- Named to Fortune Cyber 60 list (2025) - top venture-backed cybersecurity companies
- SC Awards Finalist for Best Compliance Solution (2025)
- 500% ARR growth in 12 months through 2025
- 5x headcount growth in 12 months through 2025
- Over 99% detection rate for prompt injection attacks
- Series B funding of $58M led by Sound Ventures (January 2026)
- Expanded to Japanese market via NTT DATA Japan partnership (April 2026)
- SK Telecom deployment securing GPT-4 for Korean-language telecom interactions

## Latest updates

- **2026-04** — Partnered with NTT DATA Japan to accelerate secure AI adoption for Japanese enterprises under Japan's AI Promotion Act.
- **2026-01** — Raised $58M Series B led by Sound Ventures with participation from Qualcomm Ventures, Samsung Ventures, and others. Announced expanded agentic security capabilities including MCP server monitoring.
- **2025-10** — Named to Fortune Cyber 60 list recognizing top venture-backed cybersecurity companies.
- **2025-08** — Launched Witness Attack (automated red-teaming) and Witness Protect (next-gen AI firewall) for enterprise LLMs and AI applications.
- **2025-06** — Partnered with TENEX.AI to deliver managed security and compliance services for enterprise AI.
- **2025-04** — Released WitnessAI 2.0 with regulatory compliance capabilities including PCI DSS 4.0.1 controls and agentless remote employee monitoring.

## Links

- Website: https://witness.ai
- LinkedIn: https://www.linkedin.com/company/witnessai
- Twitter/X: https://x.com/witnessai
- GitHub: https://github.com/witness-ai
- YouTube: https://www.youtube.com/@witnessai

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Profile page: https://yespress.io/witnessai
Published by YesPress — https://yespress.io
Last updated: 2026-05-18