Sublime Security

Stop advanced email attacks before they reach users.

Washington, United States · Founded 2021 · $210.0M raised

Employees
51–200
Founded
2021
Business Model
B2B
Total Funding
$210.0M
Last Round
$150.0M Series COct 2025
Rounds
2

About

Sublime Security is a next-generation email security platform that uses autonomous AI agents to detect, adapt, and respond to advanced threats — including BEC, phishing, malware, and QR code attacks — in hours rather than days. Security teams gain full visibility, a detection-as-code rule engine, and an open-source threat intelligence layer to hunt and stop attacks before they reach users.

Summary

Sublime Security is an Artificial Intelligence company based in Washington, United States, founded in 2021. It has raised $210.0M in total across 2 rounds, most recently a $150.0M Series C round in Oct 2025. Investors include Index Ventures.

Tech & App Stack

13 technologies & apps tracked

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Funding History

Series CSeries COct 2025
$150.0M

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Investors

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