agentless-segmentation
(2)
Airgap Networks Inc. (Acquired by Zscaler)
Airgap Networks was a Santa Clara-based cybersecurity company that built an agentless Zero Trust segmentation platform to stop ransomware and lateral threat movement across enterprise IT, IoT, and OT networks. Using a patented DHCP-proxy architecture, it placed every device in a 'network of one' (a /32 segment) without agents, APIs, or infrastructure upgrades, and shipped an industry-first Ransomware Kill Switch. Founded in 2019 by Ritesh Agrawal and Satish Mohan, the company raised $18.6M before being acquired by Zscaler in April 2024 to extend Zscaler's Zero Trust SASE platform with firewall-free, east-west segmentation.
Ritesh Agrawal
Ritesh Agrawal is a network-security engineer turned founder who co-founded Airgap Networks in 2019 to attack the problem most enterprises ignore: lateral movement once an attacker is already inside the building. His bet was that you do not trust any device, period. Zscaler acquired Airgap in April 2024, and its agentless, identity-based microsegmentation became the foundation of Zscaler's Zero Trust Branch, which Ritesh now leads as VP of Product Management. Before founding the company he spent nearly 18 years at Juniper Networks across engineering, product, and sales.