Origin and Essence

Founded in 2025, SIER was born from its founder’s desire to offer clients better support than what traditional service companies provide. After ten years of experience with Extreme Networks LAN technologies, four countries, and three employers, creating SIER became an obvious step for its founder. Convinced that technical expertise can still make a difference, we aim for a perfect understanding of the solutions we recommend.

Our main Extreme Networks certifications

Our skills

Extreme Networks

Extreme Fabric 100%
Extreme XIQ-SE 100%
Extreme Control 100%
Extreme Wireless 75%
Extreme SD-WAN 50%
Also our skills

Cisco, NSX-T, DNS...

  • Cisco DevNet Associate

  • Cisco CyberOps Associate

  • EfficientIP DDI Administrator

  • VMWare NSX 4.x Professional

Who is behind SIER ?