Company record · security vendor

Sublime Security

What the company sells

Sublime Security sells an email security platform built around AI agents that triage reported and suspicious emails and design new detections, along with an email data loss prevention module. It was founded by Josh Kamdjou, who previously worked in offensive cybersecurity and red teaming roles. In October 2025 the company raised $150 million in Series C funding led by Georgian, and it remains privately held.

Categories: Email security (primary category)
Data loss prevention
AI SOC analysts
Headquarters: Not established from our sources
Founded: Not established from our sources
Ownership: Privately held
Website: sublime.security

Products and services

Email Security
Applies AI-based detection models to protect against inbound email threats.
Autonomous Security Analyst (ASA)
An AI agent that triages user-reported and suspicious emails and produces verdicts with investigation logs.
Autonomous Detection Engineer (ADE)
An AI agent that creates and backtests detections tailored to an organization, then proposes them for deployment.
Email Data Loss Prevention (DLP)
Detects and helps prevent sensitive data from leaving the organization through outbound email.

Sources

Recorded September 27, 2026 from the sources above. Descriptions are in our own words; we do not rank or recommend vendors, and no vendor pays to be listed or to change what we write. Disclosure: until the publisher confirms it has no business relationship with this company, treat one as possible (how the network works). Spot a factual error? Request a correction.

Security leadership

CISO Tribune has not yet recorded who holds the top security seat at Sublime Security. We add a seat only from a verified source; if you have one, send it to the desk.