Who are Aster's competitors?

Tuta, Identillect Technologies, and Zertmail. are among the closest in Email & Messaging Security. The full competitive set, with overlap scoring, is in the platform.

Aster

Email & Messaging Securityfounded 2026private

Aster is a cybersecurity company specializing in Email & Messaging Security, founded in 2026. It is privately held.

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updated Oct 2, 2026

Aster products

Aster MailEncrypted email service hosted in Germany with post-quantum encryption and free tier

The other 440 data points.

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

Similar in Email & Messaging Security

Tuta
Identillect Technologies
Zertmail.
Beyond Encryption

Common questions about Aster.

Who are Aster's competitors?: Tuta, Identillect Technologies, and Zertmail. are among the closest in Email & Messaging Security. The full competitive set, with overlap scoring, is in the platform.
What does Aster do?: Aster is a cybersecurity company specializing in Email & Messaging Security, founded in 2026.
What products does Aster sell?: Aster sells Aster Mail.