Skip Navigation Links > About us > Partners

Membership in international programs and associations

První certifikační autorita, a.s. (I.CA) is a member of global associations and programs which bring significant certification authorities from around the world. This membership allows it to be part of the development of innovation and technical standards in this field.

Participation in programs leading provider of software applications, such as Microsoft, Adobe and Apple, then easy for users to create trusted digital signatures in their applications. Our clients can now take advantage of comfort that they provide as follows.



Partners for the supply of hardware

I.CA collaborates with major partners in the field of complex solutions involving the supply of hardware, such as smart cards readers, USB tokens or pinpad smart card readers.





OKsystem s.r.o. is a software company providing large-scale application systems services to valued customers from both public and private sector. Its main activity is design and development of application software on demand, as well as the development of custom solutions in the field of smart cards, PKI, human resources and payrolls.

OKsystem Company s.r.o. is an important partner of Prvni certifikacni autorita a.s. in the operation of I.CA public registration authority at the OKsystem company. Thanks to the professionalism of the operators (OKsystem employees) and the location, it is after the registration authority at the headquarters of Prvni certifikacni autorita a.s. a registration authority with the second highest number of certificates issued.


Registration authorities



8/28/2019 Swedish partnership
More here
7/16/2019 I.CA starts issuing certificates using elliptic curve cryptography (ECC)
More here
3/27/2019 I.CA became a member of the OBE QTSP Working Group
More here