How much funding has StealthMail raised?

StealthMail has raised $2.7M in total. Its most recent round was a Seed in October 2018.

Who are StealthMail's competitors?

Egress, MX Layer, and Barracuda Networks, Inc. are among the closest in Email & Messaging Security. The full competitive set, with overlap scoring, is in the platform.

StealthMail

Email & Messaging SecurityLondon, United Kingdomfounded 2017private

StealthMail is a cybersecurity company specializing in Email & Messaging Security, founded in 2017 and headquartered in London, United Kingdom. It has raised $2.7M in total funding, employs about 6 people, and is privately held.

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updated Aug 22, 2026

Momentum

26 out of 100.

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Products

What StealthMail sells.

StealthMailEnterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities.Details ↗

In the platform

The other 440 data points.

Funding historyevery round, every lead investor
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Email & Messaging Security

FAQ

Common questions about StealthMail.

How much funding has StealthMail raised?: StealthMail has raised $2.7M in total. Its most recent round was a Seed in October 2018.
How many people work at StealthMail?: About 6.
Who are StealthMail's competitors?: Egress, MX Layer, and Barracuda Networks, Inc. are among the closest in Email & Messaging Security. The full competitive set, with overlap scoring, is in the platform.