CategoriesCybersecurity

Companies in the category 'Cybersecurity'

These are companies that provide open source tools or platforms for protecting computer systems and networks from digital attacks.

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Showing 1-12 of 12 items
Deciso

Open-source firewall and network security

NEW

Deciso is a Netherlands-based manufacturer of network security appliances and the creator of OPNsense, an open-source firewall and routing platform built on FreeBSD. The company designs and produces its own hardware in-house and develops OPNsense software, which is trusted by over 350,000 networks worldwide. Deciso offers both a free community edition and a commercial Business Edition of OPNsense, along with purpose-built hardware appliances.

Location: Middelharnis, Netherlands
Founded: 2000
Industries
Software
Technologies
Network SecurityRouting
Sectors
Enterprise
Licenses
BSD-2-Clause
Updated: May 6, 2026
4 people
1 headlines
Socket

Security platform for open source dependencies.

Socket is a developer-first security platform that protects companies from software supply chain attacks by monitoring JavaScript, Python, and Go dependencies. Founded and run by open source maintainers, the company provides visibility, defense-in-depth, and proactive supply chain protection to prevent vulnerabilities and malicious packages from entering codebases.

Location: San Francisco, CA, USA
Founded: 2021
Industries
Software
Technologies
Supply Chain SecurityDeveloper Tools
Sectors
Enterprise
Licenses
MIT
Updated: April 18, 2026
1 person
16 headlines
Tracecat

Open-source security automation platform

Tracecat is an open-source automation platform designed for security and IT engineers. It provides a comprehensive solution for building AI-assisted workflows, managing cases, and integrating with various security tools.

Location: San Francisco, CA, USA
Founded: 2023
Industries
Technologies
Low-CodeOrchestration
Sectors
Enterprise
Licenses
AGPL-3.0
Updated: March 18, 2026
1 person
3 headlines
rConfig

Network Configuration Management Tools for Ente...

Empowering businesses with seamless network configuration management and clear insights. rConfig streamlines operations, secures networks, automates compliance, and manages devices effortlessly.

Founded: 2012
Industries
TelecommunicationsInformation Technology
Technologies
Network Configuration Management
Sectors
Enterprise
Licenses
GPL-3.0
Updated: March 13, 2026
1 person
1 headlines

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FirstWave

Cybersecurity solutions & managed services

FirstWave provides automated network management solutions for hybrid environments, simplifying discovery and management across cloud and on-premises networks. Their modular software empowers IT and network teams to gain control, streamline operations, and improve efficiency, making them a trusted choice for thousands of organizations globally.

Location: Sydney, Australia
Founded: 2004
Industries
Software
Technologies
Network ManagementIT Audit
Sectors
Enterprise
Licenses
GPL-3.0
Updated: March 13, 2026
3 people
7 headlines
MetroStar

Technology solutions for government.

MetroStar is a technology solutions company that transforms government through AI-powered solutions designed for mission effectiveness, national security, and operational dominance. They are driven by a love for how technology transforms government and inspire their team to bring unique talents to the table.

Location: Reston
Founded: 1999
Industries
Aerospace & DefenseGovernment
Technologies
Open SourceCloud Computing
Sectors
Developers
Licenses
BSD-3-Clause
Updated: March 13, 2026
3 people
4 headlines
SpecterOps

Identity attack path management solutions

SpecterOps is a cybersecurity company that provides Identity Attack Path Management solutions, offensive security services, and adversary-focused training. The company is the creator of BloodHound and specializes in helping organizations defend against modern cyber attacks through industry-leading adversary training, simulation, and tradecraft analysis skills built from the adversary's point of view.

Location: Alexandria, VA, USA
Founded: 2017
Industries
Information Technology
Technologies
Developer ToolsGraph Theory
Sectors
Enterprise
Licenses
BSD-3-Clause
Updated: September 13, 2025
3 people
11 headlines
ProjectDiscovery

Vulnerability management with Nuclei scanner.

ProjectDiscovery offers open-source security tools, including Nuclei, for vulnerability management and detection. Their platform helps organizations identify and remediate security issues quickly and accurately.

Location: San Francisco, CA, USA
Founded: 2020
Industries
Information Technology
Technologies
Supply Chain SecurityScanning
Sectors
Enterprise
Licenses
MIT
Updated: September 1, 2025
3 people
8 headlines
CrowdSec

Collaborative cybersecurity threat intelligence platform

CrowdSec provides AI-driven, ultra-curated collective threat intelligence to preemptively block malicious IPs through a collaborative cybersecurity model. The company operates a global network of 100,000+ active users across 190+ countries who share threat intelligence to create a 'Waze-like' security network that processes 15 million signals daily on aggressive IPs.

Location: Montrouge, France
Founded: 2019
Industries
Software
Technologies
Collaborative SecurityThreat Intelligence
Sectors
Enterprise
Licenses
MIT
Updated: August 6, 2025
3 people
2 headlines
ZeroRisc

ZeroRisc offers secure silicon device management.

Founded in 2023 and comprised of original OpenTitan project team members from Google, including founder and CEO Dominic Rizzo, zeroRISC is focused on providing the first commercial cloud security service built on the OpenTitan open-source silicon root of trust (RoT) project that delivers transparency and reliability for data centers, OT/ICS and IoT technologies.

Location: Boston, MA, USA
Founded: 2023
Industries
Software
Technologies
Root of Trust
Sectors
Enterprise
Licenses
Apache-2.0
Updated: July 5, 2025
1 person
1 headlines
Truffle Security

Open-source secret scanning engine for tech stacks

Truffle Security provides open-source tools for detecting and managing secrets in codebases. Their platform helps developers identify and remediate security vulnerabilities related to exposed credentials.

Location: San Francisco, CA, USA
Founded: 2020
Industries
Software
Technologies
GitSecrets Management
Sectors
Developers
Licenses
Unknown
Updated: May 1, 2025
2 people
5 headlines
pfSense

Open source firewall and network security

pfSense is a free, open source network firewall based on the FreeBSD operating system. It performs functions like packet filtering, VPN, and routing. pfSense serves a range of users, from small businesses to large enterprises.

Location: Austin, TX, USA
Founded: 2004
Industries
Software
Technologies
RoutingVPN
Sectors
Enterprise
Licenses
BSD-3-Clause
Updated: April 20, 2025
2 people
2 headlines