Certum
🇵🇱 Poland, Warsaw · Founded 1998
Polish certificate authority owned by Asseco Data Systems — eIDAS-qualified with ACME-enabled DV, OV, and EV certificates
Key Features
- Owned by Asseco Data Systems S.A. — part of Asseco Group, one of Europe's largest IT companies, listed on the Warsaw Stock Exchange (Polish jurisdiction, no US/UK exposure)
- eIDAS Qualified Trust Service Provider — Commercial (DV), Trusted (OV), and Premium (EV) certificates with warranties up to EUR 1,000,000
- ACME protocol support for Commercial DV certificates — works with certbot, acme.sh, and other standard ACME clients
- Trusted in all major browser root stores and on the eIDAS Trusted Service Providers List — established CA since 1998
Replaces
Let's Encrypt
At a Glance
Headquarters🇵🇱 Warsaw, Poland
Founded1998
Open SourceNo
Free TierNo
GDPR CompliantYes
CategorySSL/TLS Certificate Authorities
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