The CERTUM Certification Authority was established in December 1998 as a department of Unizeto Technologies SA to provide certificate services related to electronic signatures. CERTUM is one of the oldest and largest public CAs in Poland, offering its services worldwide to customers in dozens of countries.

Actalis is part of the Aruba Group and the only Italian certification authority with membership in the CAB Forum. It is fully eIDAS-qualified and recognized as a qualified trust service provider in the Open Banking Europe directory, offering qualified website authentication certificates and qualified certificate services for electronic seals within the PSD2 framework.

D-TRUST GmbH, based in Berlin, has been listed as a qualified trust service provider according to the European eIDAS Regulation by the Federal Network Agency since 2016. It issues qualified digital certificates for electronic signatures, seals, and qualified remote signatures, and offers additional PKI products and services such as the AusweisIDent service.

SwissSign is a company of Swiss Post. Founded in Switzerland in 2001, SwissSign has specialized as a European provider of digital signatures, SSL certificates, and secure communication over the Internet. As a leading security specialist in the German-speaking area, SwissSign combines complex security technologies with ease of use. SwissSign is certified by KPMG as a recognized provider of qualified certificates under ZertES and meets the requirements of WebTrust and ISO 27001.

GlobalSign™ with its headquarters in Leuven, Belgium, is a long-established certification service provider (CA) that issues high-quality digital SSL certificates, SMIME certificates, and PKI solutions for companies, organizations, and individuals. GlobalSign™ was the first European Trust Center accredited by WebTrust in 2002. SSL certificates are issued in compliance with EU regulations for digital signatures.

Sectigo, formerly Comodo, is one of the largest providers of digital encryption worldwide. Sectigo’s offerings include a wide range of high-quality SSL certificates, from domain-validated certificates to email certificates and comprehensive PKI solutions for large organizations.

Sectigo, formerly Comodo, is one of the largest providers of digital encryption worldwide. Sectigo’s offerings include a wide range of high-quality SSL certificates, from domain-validated certificates to email certificates and comprehensive PKI solutions for large organizations.

DigiCert SSL certificates protect billions of confidential transactions every day and are used by top companies worldwide. From innovative management tools to groundbreaking solutions for the post-quantum era: DigiCert is the best choice for SSL, IoT, and PKI solutions.

DigiCert SSL certificates protect billions of confidential transactions every day and are used by top companies worldwide. From innovative management tools to groundbreaking solutions for the post-quantum era: DigiCert is the best choice for SSL, IoT, and PKI solutions.

GeoTrust is one of the most well-known brands for high-quality SSL encryption, meeting essential requirements for e-business security and trust. Over 100,000 customers in more than 150 countries use GeoTrust SSL certificates to conduct their business efficiently and cost-effectively over SSL-encrypted networks. This includes banks, large online stores, and companies with Exchange environments and intranet solutions.

Thawte™ is one of the leading companies providing SSL encryption that meets essential requirements for e-business security and trust. Thawte, headquartered in Cape Town, South Africa, was the first certification authority for SSL certificates and the first CA to support IDN domains. Today, Thawte is part of the Symantec portfolio and operates as an independent brand.

DigiCert SSL certificates protect billions of confidential transactions every day and are used by top companies worldwide. From innovative management tools to groundbreaking solutions for the post-quantum era: DigiCert is the best choice for SSL, IoT, and PKI solutions.