cybersecdirectory

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
CompanyBased inFoundedSizeOwnershipRevenue
Palo Alto Networks

Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats.

Santa Clara, United States200513,900 staffPublic, PANW$11.5bn (FY2026)
Fortinet

Fortinet provides cybersecurity solutions and services, including networking and security convergence, for enterprises and governments.

Sunnyvale, United States200015,109 staffPublic, FTNT$6.8bn (FY2025)
Everfox

Everfox provides cybersecurity solutions for cross domain, threat protection, and insider risk management.

Herndon, United StatesPrivate
Hillstone Networks

Hillstone Networks provides cyber security products including firewalls, threat detection and cloud workload protection.

Santa Clara, United StatesPrivate
Juniper Networks

Juniper Networks is now part of HPE.

San Mateo, United States2000Owned by Hewlett Packard Enterprise
Netgate

Netgate provides open source firewall and network security software and hardware appliances.

Austin, United States2004Private
SonicWall

SonicWall provides unified cybersecurity for SMBs, MSPs, and IT teams.

Milpitas, United States1991Owned by Francisco Partners and Elliott Investment Management
WatchGuard

WatchGuard provides unified cybersecurity solutions for networks, endpoints, identities, and cloud environments.

Seattle, United States1996Owned by Vector Capital

Also active in firewalls

8 companies
CompanyBased inFoundedSizeOwnershipRevenue
A10 Networks

A10 Networks provides secure, high-performance networking solutions for applications and AI workloads.

San Jose, United States2004Public, ATEN$290.6m (FY2025)
Sophos

Sophos provides cybersecurity products and managed detection and response services to organisations worldwide.

Atlanta, United States1999500+ staffOwned by Thoma Bravo
iboss

iboss provides security for AI, data, and applications through a unified SASE platform.

Boston, United States2003375 staffPrivate
AT&T Cybersecurity

AT&T Cybersecurity provides network security services to businesses of all sizes.

San Mateo, United States2007Owned by WillJam Ventures
Barracuda Networks

Barracuda Networks provides cybersecurity solutions for email, networks, applications, and data.

Campbell, United States2003Owned by KKR
Forcepoint

Forcepoint provides data security software that controls how AI applications and agents access sensitive information.

Austin, United States1994Owned by Francisco Partners
Versa Networks

Versa Networks provides secure access service edge (SASE) solutions that combine networking and security.

Santa Clara, United States2012Private
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 StatesPrivate

More firewall vendors

All 32 firewall vendors

Every cybersecurity company in the United States · See every category