- Revenue
- $100M
- Customers
- 8K
- Year founded
- 2018
- Funding
- $353M
- Team size
- 1.5K
- Growth
- -
Top 125 Network Security Software SaaS Companies in May 2026
As of May 2026, there are 125 SaaS companies in Network Security Software. They have combined revenues of $2B and employ 12.8K people. They have raised $731.8M and serve 325.6K customers combined.
Network security software is designed to protect computer networks from cyber threats, ensuring the confidentiality, integrity, and availability of data. These solutions are critical for organizations of all sizes as they defend against unauthorized access, data breaches, and various forms of cyber attacks such as malware and ransomware. Typical features include firewalls, intrusion detection systems, virtual private networks (VPNs), and secure access controls, which work together to monitor and shield networks from potential vulnerabilities. The primary use cases for network security software include safeguarding sensitive data, ensuring regulatory compliance, and maintaining operational continuity. Different buyer personas such as IT managers, cybersecurity professionals, and compliance officers usually seek these solutions to mitigate risks and manage network security incidents. Furthermore, effective network security software helps organizations align their security strategies with broader business objectives, ensuring a proactive stance against evolving security threats.
Filters
Sorting: Highest -> Lowest
Top Network Security Software Companies
Showing 10 of 31 companies ranked by annual revenue.

Portsmouth, New Hampshire, United States
Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization through digital technology services and strategic guidance. The company provides systems integration, cloud management, cybersecurity, and networking services.
- Revenue
- $92.3M
- Customers
- -
- Year founded
- -
- Funding
- -
- Team size
- 508
- Growth
- -

Saint Louis, Missouri, United States
Netelligent provides companies with the technologies they need to run their business (security, phone system, servers/virtualization)
- Revenue
- $88.9M
- Customers
- -
- Year founded
- 2003
- Funding
- $25M
- Team size
- 23
- Growth
- 2318.18%

Toronto, Ontario, Canada
BlueCat provides core services and solutions that help our customers and their teams deliver change-ready networks. With BlueCat, organizations can build reliable, secure, and agile mission-critical networks that can support transformation initiatives such as cloud adoption and automation. BlueCat’s growing portfolio includes services and solutions for automated and unified DDI management, network security, multicloud management, and network observability and health. BlueCat’s DDI management platform was recognized as a market leader and outperformer in GigaOm’s 2022 and 2023 Radar reports. The company is headquartered in Toronto and New York and has additional offices in Germany, Iceland, Japan, Singapore, Serbia, and the United Kingdom.
- Revenue
- $64.7M
- Customers
- -
- Year founded
- 2001
- Funding
- -
- Team size
- 588
- Growth
- -

Lüneburg, NI , Germany
SaaS, Unified Security, UTM, Mobile Security, Network Security, Cyber Security, Antivirus, Archiving, Mobile app
- Revenue
- $63.7M
- Customers
- 80K
- Year founded
- 1997
- Funding
- -
- Team size
- 116
- Growth
- 17.42%

San Francisco, California, United States
Nozomi Networks is the leader in OT & IoT security for critical infrastructure. Their platform uniquely combines network and endpoint visibility.
- Revenue
- $63.5M
- Customers
- -
- Year founded
- 2013
- Funding
- -
- Team size
- 369
- Growth
- -

Dallas, Texas, United States
Developer of security systems designed to protect company from device, network and application-based attacks. The company's security systems offers real-time, on-device protection against both known and unknown Android and iOS threats, enabling enterprises of all sizes, large federal and local government agencies, leading mobile operators and major OEM partners to protect mobile data, applications and sessions against device compromises, network attacks and malicious applications.
- Revenue
- $49.8M
- Customers
- 2.5K
- Year founded
- 2010
- Funding
- $72M
- Team size
- 243
- Growth
- 184.84%

Vienna, Virginia, United States
AAC is a premier Information Technology (IT) service management provider who enables its customers to achieve increased return on investment through consolidation and modernization of their IT operations and infrastructure. AAC conducts quality work in compliance with internationally recognized standards and is an ISO 9001:2008 (Quality Management), ISO/IEC 20000-1:2011 (IT Service Management), and ISO/IEC 27001:2013 (Information Security) certified company. AAC has been successfully delivering network engineering, unified collaboration, cyber security, and domain specific application development services to the U.S. Federal Government since 1983.
- Revenue
- $46.9M
- Customers
- -
- Year founded
- 1983
- Funding
- -
- Team size
- 348
- Growth
- 56.78%

Coral Gables, Florida, United States
Provider of network access and control technology. The company provides a security system that protects applications, communication and endpoint devices.
- Revenue
- $43.9M
- Customers
- 650
- Year founded
- 2002
- Funding
- -
- Team size
- 387
- Growth
- 71.93%

United States
Backed by the Service Experience Promise, Open Systems simply and cost-effectively connects and secures hybrid environments and thus ensures your organization can meet business objectives. Open Systems uniquely focuses on a superior user experience when helping organizations reduce risk, improve efficiency, and accelerate innovation. The Open Systems SASE Experience delivers on the promise of ZTNA with a comprehensive, unified and easy-to-implement and use SASE platform that combines SD-WAN and Security Service Edge delivered as a Service. We provide 24x7 operational management and engineering support from assigned engineering teams and ensure affordable and predictable costs.
- Revenue
- $41.3M
- Customers
- -
- Year founded
- 1990
- Funding
- -
- Team size
- 375
- Growth
- -
Inclusion Criteria
- Must provide comprehensive protection against various types of cyber threats. - Should include capabilities for real-time monitoring and alerting of suspicious activities. - Must offer features for data encryption and secure access. - Should facilitate compliance with industry regulations and standards. - Not just limited to firewalls; must also include complementary features such as intrusion detection and prevention. - Must support integration with existing IT infrastructure and other security tools.
