Washington, DC · Founded 2019 · Privately Held (backing)
Developer an email security platform designed to write and run custom detection and response rules to block phishing attacks. Sublime Security is based in Washington, DC and was founded in 2019. Its last reported valuation was $948 million in Oct 2025. It has raised $240 million.
Last reported valuation
$948.0M
Oct 2026
Priced at
—
Total raised
$239.8M
Last round
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Cap table — not yet on record
Sublime Security's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.
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·The complete investor list: 26 names
·Watch Sublime Security: the Monday email on marks, rounds and moves
