# Impart Security

> Impart Security is a San Francisco cybersecurity company building a unified runtime protection platform for AI, APIs, and web applications. Founded in 2020 by Signal Sciences veterans Jonathan DiVincenzo, Marc Harrison, and Brian Joe, the company merges WAF, API security, Cloud Application Detection & Response, and AI Runtime Protection into one engine that runs autonomous defense agents inside production traffic.

- **Founded:** 2020
- **Headquarters:** San Francisco, United States
- **Founders:** Jonathan DiVincenzo (CEO & Co-founder), Marc Harrison (Co-founder), Brian Joe (Co-founder)
- **Team size:** 27
- **Products:** Runtime Defense Agents, LLM Protection, Agent Protection, MCP Protection, WAF
- **Notable:** Raised $19.8M total across Seed and Series A, SOC 2 Type II certified, GDPR ready, Announced GA of the industry's first Application Detection and Response Engineering Platform in 2025

## Products & services

- **Runtime Defense Agents** — Autonomous AI security agents that run inline with production traffic, making detection and response decisions in real time.
- **LLM Protection** — Deterministic guardrails enforced at the model boundary to stop prompt injection, data exfiltration, and abuse.
- **Agent Protection** — Behavioral controls for AI agents running in production environments.
- **MCP Protection** — Runtime control plane for the Model Context Protocol layer.
- **WAF** — A web application firewall built for the agentic era - programmable, observable, and lightweight.
- **API Security** — Complete API discovery and runtime enforcement, replacing brittle rule sets with adaptive policy.
- **Application Detection & Response (ADR)** — An engineering platform that lets security teams build autonomous response workflows.

## Achievements

- Raised $19.8M total across Seed and Series A
- SOC 2 Type II certified, GDPR ready
- Announced GA of the industry's first Application Detection and Response Engineering Platform in 2025
- Founding team previously built Signal Sciences (acquired by Fastly)
- Madrona Managing Director Karan Mehandru joined the board after Series A

## Latest updates

- **2025-06** — Closed $12M Series A led by Madrona; launched Application Detection and Response Engineering Platform GA.
- **2024-11** — Announced availability in major cloud marketplaces.
- **2024-09** — Shipped Rule Tracing for runtime policy debugging.
- **2022-07** — Closed $6M Seed round led by CRV.

## Links

- Website: https://www.impart.ai
- LinkedIn: https://www.linkedin.com/company/impartsecurity
- Twitter/X: https://twitter.com/impartsecurity
- YouTube: https://www.youtube.com/@impartsecurity

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Profile page: https://yespress.io/impart-security
Published by YesPress — https://yespress.io
Last updated: 2026-06-29