Cybersecurity Funding

Asymptote Labs Lands $5.5 Million Seed for AI Agent Runtime Security

Asymptote Labs raises $5.5M seed led by Tower Research Ventures to commercialize its Beacon AI agent runtime security platform.

Cybersecurity funding

Asymptote Labs has secured $5.5 million in seed funding to develop runtime control and visibility infrastructure for enterprise AI agents. 

Tower Research Ventures led the oversubscribed round. Other participants included Lytical Ventures, 1984 Ventures, and South Park Commons.

The new capital will support product development, engineering expansion, and go-to-market efforts. 

Asymptote founders Justin D’Souza (CEO) and Shukan Shah (CTO) previously built defenses at Doppel. They aim to address the monitoring blind spots security teams face when autonomous tools access sensitive corporate data.

The foundation of their approach is Beacon, an open source telemetry layer. Beacon standardizes activity from over 20 different agent harnesses, including Cursor, Codex, and Claude Code. It normalizes this telemetry into a unified data model extending the OpenTelemetry framework.

A commercial enterprise platform sits on top of this open source core to secure operations in real time. It intercepts live activity to enforce policy guardrails at both the prompt and tool execution levels. This mechanism steers agents away from unsafe behavior and blocks risky actions before they occur.

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“AI agents are becoming a new operating layer inside every company, but the infrastructure to understand and control them hasn’t caught up,” said D’Souza. “We saw this problem firsthand when building agents at Doppel. As companies deploy thousands of agents across their infrastructure, their runtime data will become one of the most valuable assets they own.”

Related: Hadrian Raises $40 Million to Expand Autonomous Offensive Security Platform

Related: Harmonic Security Raises $50 Million for Workforce AI Protection

Related: Rein Security Raises $25 Million to Guard AI Agents at Runtime

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