Trusted Introducer, founded within Geant organization, is an international platform supporting activities of centers dealing with security threats in ICT systems. 

Since November 1, 2017, the National CERT has been listed by Trusted Introducer as a recognized partner, along with more than 150 CERT teams worldwide, from different areas of work.

On August 9, 2019, the National CERT of the Republic of Serbia successfully completed its accreditation process.

https://www.trusted-introducer.org/directory/teams/srb-cert.html 

Beside the National CERT, the Trusted Introducer's list features another four centers for the prevention of security risks in ICT systems, from the Republic of Serbia:

• AMRES-CSIRT, status: Listed;
• CERT MUP, status: Accredited;
• SHARE CERT, status: Accredited;
• UNICOM CERT, status: Listed.