Harica
HARICA (Hellenic Academic & Research Institutions Certification Authority) is a Greek Qualified Trust Service Provider (QTSP) offering a comprehensive suite of digital trust services.
Pick a market to see connected Trust Service Providers and compare AES, QES, and electronic seal options for every cross-border agreement.
Coverage shows availability; legal effect may vary by governing law and dispute forum.
Search by country and signing option to compare local status, AES, QES, and eSeal routes—then choose the provider that fits your workflow.
HARICA (Hellenic Academic & Research Institutions Certification Authority) is a Greek Qualified Trust Service Provider (QTSP) offering a comprehensive suite of digital trust services.
Intesi Group is an Italian qualified trust service provider delivering eIDAS-compliant identity verification, cloud signatures, and electronic seals for global workflows.
DigiCert provides global certificate authority and PKI services, including identity verification, document signing, and electronic seals supported by widely trusted certificate programs.
GlobalSign is a global certification authority and qualified trust service provider offering PKI, identity verification, digital signatures, and electronic seals.
Digi-Sign is a Hong Kong-recognized certification authority that issues legally valid digital certificates for secure electronic signatures and seals.
With Adacom One-Shot, businesses can securely sign documents without requiring users to have a pre-existing digital ID.
BORICA B-Trust is a Bulgarian Qualified Trust Service Provider (QTSP) that issues Qualified Electronic Signatures (QES) in 100+ countries.
D-Trust's sign-me is a remote electronic signature solution that enables individuals and organizations to digitally sign documents securely and conveniently from any location.
Evrotrust is a Qualified Trust Service Provider offering a comprehensive suite of digital identity and trust services across multiple demographics.



“Managing agreements across global markets requires consistency and local compliance. Nota Sign gives us the trust and flexibility to streamline signing workflows worldwide.”

Turn local trust requirements into one global signing strategy.

