3Corners

3Corners is a Dutch professional services firm founded by Sijbren Beukenkamp that specializes in Cisco Collaboration and Webex solutions for secure government and enterprise environments. The company focuses on architecture, implementation guidance, and technical deep dives involving identity, network infrastructure, and datacenter operations to ensure reliable unified communications.

• Services: Architecture decision-making, LEAN/Agile transition support, tender assistance, and hands-on datacenter configuration.
• Industries: Dutch government agencies like the Tax Administration and Ministry of Defense, alongside international clients such as DOW Chemical.
• Products: Portfolio components including cloud telephony services via RoutIT/KPN, UnifiedNOC for operational support, and Webex licensing with lifecycle management.

The firm actively shares knowledge through speaking engagements at Cisco Live and participation in expert community programs.