Sublime Security delivers an agentic email security platform in which AI agents act like a digital SOC team, automatically investigating threats in seconds and rolling out tailored detections within hours. Its Autonomous Security Analyst (ASA) and Autonomous Detection Engineer (ADÉ) remove manual review bottlenecks and continuously adapt protections to each customer’s specific attack surface. The company reports 100% growth in annual recurring revenue during the first half of 2025 and has retained 100% of its enterprise customers to date, serving brands such as Spotify, Snowflake, Zscaler, Anduril, and ASOS. Sublime positions its transparency and programmability as key differentiators from rigid legacy email-security tools. Proceeds from the latest funding will expand the platform’s agentic AI capabilities, double down on product enhancements, and support global market expansion. By automating much of the traditional security workload, Sublime aims to let security teams focus on higher-value tasks while keeping pace with adversaries who increasingly leverage generative AI.

Total raised

$240M

Funding rounds

4

Latest round

Series C

Latest activity

Oct 2025