WitnessAI vs Notabene
Side-by-side comparison of AI visibility scores, market position, and capabilities
Unified AI security and governance platform. 500%+ ARR growth. Raised $58M (Jan 2026). Agentic AI governance for shadow AI discovery. Founded 2023, California.
About
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.
Crypto Travel Rule compliance platform connecting 165+ VASPs globally for KYC data sharing across 80+ jurisdictions; $27.1M with DRW Trading Series B processing $500B+ transactions preventing $1B+ high-risk.
About
Notabene is a Brooklyn-based cryptocurrency compliance platform that helps crypto exchanges, financial institutions, and virtual asset service providers (VASPs) meet Travel Rule requirements across 80+ jurisdictions — providing the infrastructure for compliant transfer of customer identification information between crypto businesses when transactions exceed regulatory thresholds (typically $1,000+ in the US, $1,000 EUR in Europe). Founded in 2019 and backed by Y Combinator with $27.1 million raised including a $14.5 million Series B led by DRW Trading Group in November 2024, Notabene serves 165+ companies globally, processing $500 billion+ in transactions annually while preventing $1 billion+ in high-risk transactions in 2024.
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