Fortinet

Fortinet's FortiGate next-generation firewalls are the single most widely deployed network security product on earth, with 730,000+ customers across 190 countries and a 28% share of the network security market. Unlike its cloud-first competitors, Fortinet manufactures its own FortiASIC chips — giving it a 10x performance and cost advantage for high-throughput environments like telecom, manufacturing, and critical infrastructure. The company generates $5.7B in annual revenue with the best operating margins in cybersecurity (30%+), and its product portfolio spans firewall, SD-WAN, SASE, and OT security. Fortinet is the preferred security vendor for industrial control systems — its OT security tools protect 40,000+ organizations in energy, utilities, and manufacturing.