Firewall vendors in the United States
16 of the 32 firewall vendors we list are based in the United States. 3 are public, 7 are owned by another company and 6 are private. The oldest, SonicWall, was founded in 1991. By revenue from annual reports, the largest company here is Palo Alto Networks ($11.5bn in FY2026).
Companies focused on firewalls in the United States
8 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Palo Alto Networks Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats. | Santa Clara, United States | 2005 | 13,900 staff | Public, PANW | $11.5bn (FY2026) |
Fortinet Fortinet provides cybersecurity solutions and services, including networking and security convergence, for enterprises and governments. | Sunnyvale, United States | 2000 | 15,109 staff | Public, FTNT | $6.8bn (FY2025) |
E Everfox Everfox provides cybersecurity solutions for cross domain, threat protection, and insider risk management. | Herndon, United States | Private | |||
Hillstone Networks Hillstone Networks provides cyber security products including firewalls, threat detection and cloud workload protection. | Santa Clara, United States | Private | |||
J Juniper Networks Juniper Networks is now part of HPE. | San Mateo, United States | 2000 | Owned by Hewlett Packard Enterprise | ||
Netgate Netgate provides open source firewall and network security software and hardware appliances. | Austin, United States | 2004 | Private | ||
SonicWall SonicWall provides unified cybersecurity for SMBs, MSPs, and IT teams. | Milpitas, United States | 1991 | Owned by Francisco Partners and Elliott Investment Management | ||
WatchGuard WatchGuard provides unified cybersecurity solutions for networks, endpoints, identities, and cloud environments. | Seattle, United States | 1996 | Owned by Vector Capital |
Also active in firewalls
8 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
A10 Networks A10 Networks provides secure, high-performance networking solutions for applications and AI workloads. | San Jose, United States | 2004 | Public, ATEN | $290.6m (FY2025) | |
Sophos Sophos provides cybersecurity products and managed detection and response services to organisations worldwide. | Atlanta, United States | 1999 | 500+ staff | Owned by Thoma Bravo | |
iboss iboss provides security for AI, data, and applications through a unified SASE platform. | Boston, United States | 2003 | 375 staff | Private | |
AT&T Cybersecurity AT&T Cybersecurity provides network security services to businesses of all sizes. | San Mateo, United States | 2007 | Owned by WillJam Ventures | ||
Barracuda Networks Barracuda Networks provides cybersecurity solutions for email, networks, applications, and data. | Campbell, United States | 2003 | Owned by KKR | ||
Forcepoint Forcepoint provides data security software that controls how AI applications and agents access sensitive information. | Austin, United States | 1994 | Owned by Francisco Partners | ||
Versa Networks Versa Networks provides secure access service edge (SASE) solutions that combine networking and security. | Santa Clara, United States | 2012 | Private | ||
HPE Security service edge combining ZTNA, secure web gateway, CASB and firewall as a service, alongside HPE servers, storage, networking and hybrid cloud. | Houston, United States | Private |
More firewall vendors
All 32 firewall vendorsEvery cybersecurity company in the United States · See every category