Portnox, a network security company focused on zero-trust access control, has raised $37.5 million in Series B funding, as reported by SiliconAngle. The investment aims to accelerate product development, grow its market presence, and support security teams looking for accessible, enterprise-grade solutions without the complexity of traditional infrastructure. This round, led by Updata Partners with participation from Elsewhere Partners, brings Portnox’s total funding to $59.5 million.
Portnox offers a cloud-native platform that helps organizations secure their networks by controlling which users and devices can access critical resources. Its flagship Network Access Control (NAC) solution provides visibility and enforcement across all devices, ensuring that only authorized and compliant endpoints are granted access. By eliminating the need for on-premises hardware, Portnox makes it easier for IT teams to scale security measures without added operational overhead.
Beyond NAC, the company delivers additional capabilities such as Conditional Access for Applications, supporting secure authentication and risk-based access to both on-prem and SaaS environments. Portnox also offers cloud-native RADIUS services and a TACACS+ solution for managing privileged access to network infrastructure, ensuring policy enforcement and auditability across enterprise environments.
With nearly 1,000 customers worldwide, Portnox has earned the trust of organizations like Dr. Martens, Talend, Ford Foundation, and Tishman Speyer. The new funding will help the company deepen its footprint in a growing market and continue delivering on its vision of simplifying zero-trust security for modern IT teams.
