SK ID Solutions

business overview

SK specializes in international e-identity solutions. Our vision is to be No. 1 trusted e-identity provider in the EU. SK’s strong authentication solutions enable users to securely use e-services and give legally binding electronic signatures.

We partner with the Estonian state in issuing certificates for national identity documents and maintaining the infrastructure necessary for using different digital identities. With offices in Estonia, Latvia, and Lithuania, we provide services more than 1000 businesses and over 3 million end-users in the Baltics.

SK is included in the European Trusted List as a qualified trust service provider. Our services are regularly audited by eIDAS certified TüVIT and KPMG to meet high international standards.

SK earned the title of Innovator of the Year for their notably successful development of Smart-ID at the “Entrepreneurship Competition 2019” organized by Enterprise Estonia and the Estonian Employers’ Confederation.

Benefits of using our services include:

  • high level of security
  • qualified services as SK is a Qualified Trust Service Provider in the European Trust List
  • transparency
  • e-signatures accepted all over the EU
  • non-repudiation of data and documents

services and products

Fast-growing and award-winning mobile app-based cross-border eID solution that is used by over 43% of the Baltic population, which is more than 2.6 million end users. This provides a high level of assurance and Qualified Electronic Signatures for e‑services.

This internationally recognized secure and convenient eID is trusted by TOP3 Baltic banks and has been chosen as the primary method for secure authentication by many others. Read more:

Time-Stamping Service
Our qualified Time-Stamping Service ensures the existence of specific data at a certain point of time. It is, therefore, widely used in electronic signing, archiving documents and in technical solutions marking log entries.

The Time-Stamping Service uses PKI and trusted time sources to provide secure and reliable information which is compatible with international standards (RFC 3161).

SK issues millions of time stamps a month to customers all over the world.

The e-Seal substitutes the physical seal with an electronic one. It ensures the integrity and origin of documents in your organization. SK was the first in the EU to issue a qualified e-Seal.

The e-Seal can be used in banking for confirming payment orders and proving payment transactions, in healthcare for confirming analyses and medical history, and by state and local authorities for exchanging data on different state levels.

SIM card-based personal identification solution for mobile devices. Enables authentication in e-services and e-signatures equal to hand-written ones. Based on proven PKI technology.

Our reliable PKI-based infrastructure and certification service for tachograph cards meets the highest security requirements. New Tacho3 software supports both Digital and Smart Tachograph solutions mandatory in the EU.


  • e-identity solutions
  • Secure PKI-based authentication and e-signature solutions
  • Qualified Trust Service Provider with services trusted by the EU member states


  • Strategic Partnerships
  • Custom Solutions
  • Licensing

customer portfolio

  • Over 18 years of experience in strong authentication solutions
  • eIDAS, PSD2 and GDPR compliant services
  • Over 80 mln transactions a month
  • Over 1000 business clients in the private and public sector (incl. finance, health, energy, education, telecoms, etc.)
  • Over 1,000,000,000 transactions supported in the Estonian e-identity ecosystem


  • Estonia, Latvia, Lithuania
  • Finland, Iceland, Norway, Sweden
  • Austria, Belgium, France, Malta, Poland, UK, Luxembourg
  • Singapore

Banks: Swedbank Group, SEB Group, Luminor Bank, Šiaulių Bankas, Medicinos Bankas, Citadele Bank.
Telecom operators: Telia Company, Elisa, Tele2, Bite.
Partners: Idemia, Gemalto.