cybersecdirectory

Firewall vendors

We list 32 companies active in firewalls, and 17 of them have it as their main focus. 5 are public, 8 are owned by another company and 19 are private. Most are based in the United States (16) and Israel (4). The oldest, Teldat, was founded in 1985. By revenue from annual reports, the largest company here is Palo Alto Networks ($11.5bn in FY2026).

By countryUnited States 16

Companies focused on firewalls

17 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)
Check Point

Check Point Software provides cyber security solutions including network, cloud, and AI security.

Tel Aviv, Israel1993Public, CHKP$2.7bn (FY2025)
Clavister

Clavister is a Swedish cybersecurity company that develops, tests and supports all its technology in Sweden.

Örnsköldsvik, Sweden1997Public, CLAV
Everfox

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

Herndon, United StatesPrivate
genua GmbH

genua GmbH is a German IT security company that protects critical and highly sensitive digital infrastructures.

Kirchheim bei München, Germany1992Owned by Bundesdruckerei
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
PONA Technology

PONA Teknoloji manufactures firewalls, VPNs and endpoint security products for corporate networks.

TurkeyPrivate
SkyCloud

SkyCloud provides software for managing and automating firewall security policies across multiple vendors.

Shenzhen, ChinaPrivate
SonicWall

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

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

Stormshield provides cybersecurity solutions for networks, endpoints, data, and industrial environments.

Issy-les-Moulineaux, FrancePrivate
WatchGuard

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

Seattle, United States1996Owned by Vector Capital
Zyxel Networks

Next generation firewalls and security routers for small and midsize businesses, alongside switches, wireless access points, Nebula cloud management and broadband access equipment.

Hsinchu, TaiwanPrivate
Huawei

Network security products including firewalls, unified SASE and HiSec Endpoint security, alongside Huawei's enterprise networking and telecommunications equipment.

Shenzhen, ChinaPrivate
Sangfor Technologies

Next generation firewalls, endpoint protection, secure web gateway, NDR, SASE and managed detection and response, plus hyperconverged infrastructure and virtual desktop products.

Shenzhen, ChinaPrivate

Also active in firewalls

15 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
Cato Networks

Cato Networks provides a SASE platform that secures enterprise, cloud and AI interactions.

Tel Aviv, Israel2015Private
Forcepoint

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

Austin, United States1994Owned by Francisco Partners
Red Piranha

Red Piranha provides cybersecurity technology that consolidates protection, detection, and response across cloud, on-prem, and endpoints.

AustraliaPrivate
SecureNET Systems

SecureNET Systems provides IT outsourcing and cybersecurity services to small and medium businesses in Bucharest and Ilfov.

Romania2025Private
Teldat

Teldat sells networking and security equipment and software.

Madrid, Spain1985Private
TXOne Networks

TXOne Networks provides operations-first cybersecurity for industrial operational technology environments.

Taipei, TaiwanPrivate
Versa Networks

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

Santa Clara, United States2012Private
Waterfall Security Solutions

Waterfall Security provides hardware-enforced OT security solutions for critical infrastructure and industrial systems.

Rosh HaAyin, Israel2007Private
Zero Networks

Zero Networks provides automated microsegmentation and zero trust security to stop lateral movement and contain attacks.

Tel Aviv, IsraelPrivate
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

Recent deals in firewalls

All firewalls deals
DateDealAmountSource
1 Sept 2026Palo Alto Networks acquired ConsoleSource for Palo Alto Networks buying Console, opens in a new tabUndisclosedSource for Palo Alto Networks buying Console, opens in a new tab
18 Aug 2026Fortinet acquired Virtue AISource for Fortinet buying Virtue AI, opens in a new tabUndisclosedSource for Fortinet buying Virtue AI, opens in a new tab
July 2026Barracuda Networks acquired Evo SecuritySource for Barracuda Networks buying Evo Security, opens in a new tabUndisclosedSource for Barracuda Networks buying Evo Security, opens in a new tab
June 2026A10 Networks acquired TrojAISource for A10 Networks buying TrojAI, opens in a new tabUndisclosedSource for A10 Networks buying TrojAI, opens in a new tab
May 2026Check Point acquired DeepchecksSource for Check Point buying Deepchecks, opens in a new tabUndisclosedSource for Check Point buying Deepchecks, opens in a new tab
May 2026WatchGuard acquired Perimeters.ioSource for WatchGuard buying Perimeters.io, opens in a new tabUndisclosedSource for WatchGuard buying Perimeters.io, opens in a new tab
February 2026Sophos acquired Arco CyberSource for Sophos buying Arco Cyber, opens in a new tabUndisclosedSource for Sophos buying Arco Cyber, opens in a new tab
February 2026Check Point acquired CyataSource for Check Point buying Cyata, opens in a new tabUndisclosedSource for Check Point buying Cyata, opens in a new tab
February 2026Check Point acquired CyclopsSource for Check Point buying Cyclops, opens in a new tabUndisclosedSource for Check Point buying Cyclops, opens in a new tab
February 2026Check Point acquired RotateSource for Check Point buying Rotate, opens in a new tabUndisclosedSource for Check Point buying Rotate, opens in a new tab

Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.

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Often listed alongside firewalls