6WIND, founded in 2000, is a networking and infrastructure-security software vendor serving an established base of enterprise and telecom clients.
6Wind
Activereach, a UK provider founded in 2008 and now part of Babble, delivers internet, networking, voice, and security offerings through cloud, managed-service, software, and appliance formats.
ADLINK Technology, a Taiwan-based company founded in 1995, builds edge-computing hardware — motherboards, systems, and platforms — for industrial IoT applications spanning automation, medical, transportation, and defense.
Adlink Technology (6166)
AIONCLOUD (MONITORAPP), founded in South Korea in 2016, offers an all-in-one cloud security platform combining secure server access with secure internet access from cloud-based data centers.
Airgap Networks, founded in 2019, defends against ransomware through zero-trust network isolation that it says can be deployed without endpoint agents or major infrastructure changes.
Alarum Technologies, founded in Israel in 2013, provides internet-access solutions for both enterprise and consumer customers globally.
Alert Logic, founded in 2002 and now part of HelpSystems (Fortra), has spent more than a decade building cloud-security solutions designed to work alongside hosting and cloud-service providers.
Alias Robotics, founded in Spain in 2018, specializes in robot cybersecurity, drawing on its team's robotics background to offer threat modeling, penetration testing, and red-teaming for robotic systems.
Alias Robotics
Ananda Networks, founded in 2019, builds decentralized network-security monitoring intended as an alternative to traditional centralized security architectures.
Ananda Networks
Aperio Systems, founded in Israel in 2016, provides a last line of defense for critical control systems against both internal and external threats.
Aperio Systems
Apex.AI, founded in 2017, develops operating systems for autonomous vehicles, built on open-source foundations such as ROS and Eclipse iceoryx.
Apex.AI
Appsecco, a UK-based application security firm founded in 2015, provides consulting and tooling for a range of cybersecurity problems.
Appsecco
Argus Cyber Security, founded in Israel in 2013 and later acquired by Continental, focuses on automotive cybersecurity, protecting both private and commercial vehicles from hacking.
Argus Cyber Security
Assured Information Security, founded in 2001, does cyber-technology research for the US Air Force and Department of Defense, and has operated the Adversarial Sciences Laboratory within the Air Force Research Laboratory.
Aves Network Security, a Finnish company, builds deception technology that lets enterprises detect, observe, and contain attackers already inside their internal network.
Aves Network Security
Barbara IoT, founded in Spain in 2016, builds Barbara OS, a security-focused operating system aimed at making industrial IoT deployments easier to secure.
Barbara IoT
Becrypt, founded in the UK in 2001, focuses on managing information-security requirements as organizations adopt new and evolving computing platforms.
Beijing Venustech, founded in China in 1996, offers network security products and managed security services to a large customer base that includes Fortune 500 firms and major Chinese financial institutions.
Binare, a Finnish startup founded in 2020, offers an automated IoT vulnerability-management and firmware-analysis platform.
Binare
BlackBerry, the Canadian company founded in 1984, now spans application security, endpoint security, identity, and infrastructure security across its mobile-ecosystem product line.
BlackDice, a UK startup founded in 2018, sells an AI-driven cybersecurity insight tool aimed at helping telecom operators launch new services while managing churn.
BlackDice
BlockDoS, founded in Canada in 2005, provides DDoS mitigation aimed at protecting internet operations from service disruption.
Blockdos
Bluedon, a Chinese network-security vendor, sells products and services to a large customer base — reportedly over 10,000 organizations worldwide.
BonjourCyber, a French startup founded in 2022, builds a tool aimed at closing off the most common entry points attackers use.
BreachLock, founded in 2019, offers penetration-testing-as-a-service combining certified human testers with AI, aimed at improving the scalability and cost of pen testing.
BreachLock Inc.
Bricata, founded in 2014 and later acquired by OpenText, built appliances and cloud products around the Suricata intrusion-prevention engine with added hardware acceleration.
BullGuard, founded in the UK in 2002, offers a consumer security portfolio spanning antivirus, round-the-clock protection, and identity and social-media monitoring across devices.
Caretower, founded in the UK in 1998 and later acquired by Integrity360, is an independent IT security specialist known as a value-added reseller with network security expertise.
Carr & Ferrell, founded in 1992, is a law firm providing patent, IP, corporate, financing, and litigation services, including for security and technology companies.
Carr & Ferrell LLP
CensorNet, founded in the UK in 2005, delivers a multi-layered cloud security platform combining integrated security controls with cloud application management.
Centrify, founded in 2004, focuses on securing enterprise identities across hybrid IT environments spanning cloud, mobile, and on-premises systems.
Clean Creative, founded in 2017, builds anti-malvertising technology aimed at helping publishers get ahead of malicious ad threats.
Clean Creative
Cloudentity, founded in 2011 and later acquired by SecureAuth, built its identity and access management platform for performance at scale, aimed at modern application development without compromising security.
CNS Group (Six Degrees), originally Convergent Network Solutions and founded in London in 1999, provides information-security and networking consultancy and built the Mosaic platform for managed security and compliance.
CNS Group / Six degrees
CoDe_RTD, an Italian startup founded in 2020, uses AI to fight digital piracy, developing copyright-protection technology for multimedia video content.
CoDe_RTD
ColorTokens, founded in 2015, offers a cloud-delivered zero-trust platform aimed at helping organizations become more cyber-resilient.
Compumatica, a German company, is an independently owned firm with offices across Europe that develops and manufactures high-security networking products designed without backdoors.
Cradlepoint, founded in 2004, provides software-defined wireless and wired WAN solutions for distributed and mobile enterprises.
Cradlepoint
Critifence, founded in Israel in 2016, builds passive monitoring and control technology for critical infrastructure, SCADA, and industrial control system networks.
Critifence
CSL DualCom, founded in the UK in 1996, is a market leader in secure connectivity for the fire, security, and telecare sectors globally.
CSL DualCom
CUJO AI, founded in 2015, builds an AI-driven security platform used by network operators and offered directly to home users.
CUJO AI
Cyber Advanced Technology, a US firm, develops real-time cyber technologies aimed at enterprises navigating a fast-changing threat landscape.
Cybera, a PDI company founded in 2001 with its Cybera ONE platform launched in 2011, provides secure virtual application networks that help distributed enterprises manage payment networks and other sensitive applications at remote locations.
CyberClan, a Canadian firm founded in 2006 (formerly known as NTL), provides security testing and compliance services.
CyberMDX, founded in 2017 and later acquired by Forescout, built multi-layered security technology aimed specifically at medical devices and clinical networks.
CyberMDX
Cyberus Labs, founded in Poland in 2015, focuses on eliminating the root causes of cyber threats rather than just reacting to them after the fact.
Cyberus Labs
Cymbel Corporation, founded in 2000, is an IT solutions provider focused entirely on security and compliance.
Cyxtera, founded in 2002, positions itself at the intersection of enterprise IT's evolution and a broader shift in infrastructure security.
Cyxtera
Data Shepherd, founded in the UK in 2013 as part of an international group, specializes in information-security solutions.
DeepFactor, founded in 2019, runs a continuous-observability platform that helps engineering and AppSec teams find runtime security, privacy, and compliance risks in their applications.
Deepfence, founded in 2016, set out to advance the state of the art in application and infrastructure security.
Defence Intelligence, founded in Ottawa in 2008, specializes in advanced malware protection and is known for uncovering the Mariposa botnet, work recognized with a Global Hero Award from the Digital Crimes Consortium.
DefendX (NTP Software), founded in 1994, is a longtime player in unstructured file-data management, with technology used to manage storage for more than 20 million users daily.
Dellfer, founded in 2016 and later acquired by Enigma, secured IoT embedded code by letting developers add continuous protection at compile time.
DeviceLock, founded in 1996, provides endpoint device and port control along with data-leak-prevention software for business, education, and government customers worldwide.
DG Technology, founded in 2007, delivers security solutions through a network of partner technologies and technologists rather than building everything in-house.
Digital Defense, founded in 1999 and later acquired by HelpSystems, provided managed security risk-assessment services protecting assets for organizations ranging from small businesses to Fortune-level companies across more than 65 countries.
Digital Defense, Inc.
Digital Hands, founded in 2010, is a certified woman-owned US managed services provider (WBENC/EDWOSB) that delivers its services entirely onshore.
Disruptive Industries, founded in 2020, offers a cloud-based physical security platform combining access-control-as-a-service with keyless entry and video surveillance.
Disruptive Industries
DUST Identity, founded in 2018, embeds diamond dust into products to create a physical identity marker that's hard to clone, aimed at supply-chain security.
DUST Identity
EdgeWave, founded in 2003, provides cloud-based email and web security aimed at phishing, spam, and malware.
ElastiFlow, founded in 2015, provides network-observability and traffic-flow-analysis tools for monitoring and securing network infrastructure.
ElastiFlow
Elta Systems, an Israel Aerospace Industries subsidiary founded in 1966, builds radar, intelligence, and cybersecurity technology for defense and critical-infrastructure customers.
Elta – IAI
Endian, founded in Italy in 2003, builds open-source-based UTM and IoT security products for network protection and secure remote connectivity in enterprise and industrial settings.
Endian
Founded in 1988, Engage Communication builds encryption technology for satellite, mobile, and radio communications used in defense and critical infrastructure.
Engage Communication
Enigmatos, founded in Israel in 2016, builds automotive cybersecurity technology to detect and prevent threats targeting connected and autonomous vehicles.
Enigmatos
Enigmedia, founded in Spain in 2013, provides quantum-resistant encryption for real-time video and data communications in critical-infrastructure sectors.
Essensium, part of NXP and founded in Belgium in 2001, develops embedded security and connectivity technology for IoT devices, including secure boot and device authentication.
Essensium
Everfox, formerly known as Forcepoint Federal and founded (under its current name) in 2023, has more than 25 years of history building defense-grade, high-assurance cybersecurity technology.
Exalens, founded in 2021, applies AI to monitor operational technology and industrial control system environments for security threats.
Exalens
Faststream Technologies, founded in India in 2016, builds embedded software and cybersecurity technology for IoT and industrial-automation systems.
Faststream Technologies
Firedome, founded in Israel in 2018, provides IoT device security with real-time threat detection and automated response for connected devices.
Firedome
Firstpoint Mobile Guard, founded in Israel in 2016, provides network-based mobile device security for enterprises and IoT deployments.
Firstpoint Mobile Guard
Fox-IT, founded in the Netherlands in 1999 and later acquired by NCC Group, builds technology aimed at improving detection of criminal activity and hardening critical IT networks and systems.
General Dynamics Mission Systems Canada, tracing to 1954, builds cryptographic and mission-critical communications technology for defense and government customers.
General Dynamics Mission Systems – Canada
GeoEdge, founded in Israel in 2011, provides ad-security and malvertising-protection technology that helps publishers and ad platforms block malicious ads.
GeoEdge
GFI Software, founded in 1992, targets small and medium-sized businesses with network security, email security, and IT management tools.
Global IP Networks, a Swedish company founded in 1998, provides network infrastructure and cybersecurity technology for telecom and enterprise customers.
Global IP Networks
Golden Frog, a Swiss company founded in 2009, provides VPN and privacy services for securing internet connections and protecting user data from surveillance.
GoldenFrog
Great Bay Software, founded in 2004, profiles network devices to give enterprises visibility into IoT and unmanaged devices on their networks.
Great Bay Software
GRYPHON, founded in 2016, combines router hardware with network security and parental-control features for home and small-business networks.
GRYPHON
GuardKnox, founded in Israel in 2016, protects connected vehicles from cyber threats using centralized gateway architecture and communication lockdown technology.
GuardKnox Cyber Technologies Ltd.
HaltDos, founded in India in 2015, provides DDoS mitigation and web application firewall technology against network- and application-layer attacks.
HID Global, founded in 1991, is a large (2,000+ employee) provider of products and services for creating and managing secure digital identities worldwide.
High Sec Labs, founded in Israel in 2005, builds secure KVM switches and data-isolation hardware for classified government and defense environments.
High Sec Labs
infiniDome, founded in Israel in 2016, provides GPS-security technology that protects wireless communications from jamming, aimed at drones, unmanned systems, vehicle fleets, and critical networks.
infiniDome
Infodas, a German company founded in 1974, provides cross-domain security technology and cybersecurity consulting for government and defense.
Infodas
InfoSec Global, later acquired by Keyfactor, provided custom cryptography, key-exchange, and secure-communication technology.
Interface Masters Technologies, founded in 2004, builds packet-broker and network-visibility hardware for network-security monitoring.
IP Keys Technologies, founded in 1998, secures critical infrastructure through network monitoring and OT/IoT security technology.
IP Keys Technologies
iXDen, an early-stage Israeli company founded in 2018, provides IoT and OT cybersecurity using RF-based anomaly detection.
iXDen
Lumen (CenturyLink), a large company founded in 1985 with more than 40,000 employees, offers data-analysis and secure-collaboration solutions spanning application, endpoint, and infrastructure security.
Embedded and mission-critical systems get their real-time operating system and virtualization technology from Lynx Software Technologies, a company dating to 1988.
Lynx Software Technologies, Inc.
Malloc, an early-stage Israeli company founded in 2018, provides OT/ICS cybersecurity monitoring and threat detection for industrial control systems.
Malloc
Mocana, founded in 2004 and later acquired by DigiCert, secures enterprise data and the connected IoT devices that carry it.
Mocana
Namogoo Technologies, founded in Israel in 2014, protects online publishers from client-side injected malware (CSIM).
Namogoo Technologies Ltd.
NanoLock Security, founded in Israel in 2016, secures IoT and OT critical-infrastructure devices at the device level.
NCC Group, a large (2,000+ employee) FTSE 250 company founded in the UK in 1999, works with businesses globally on cybersecurity and risk mitigation.
NCC Group
Security agencies rely on Netline Communications Technologies, an Israeli firm dating to 1998, for cellular detection, geolocation, and jamming hardware.
Netline Communications Technologies (NCT) Ltd.
Network Integrity Systems, founded in 1996, monitors fiber-optic networks for intrusion and physical-security threats.
Network Integrity Systems
Neustar (NYSE: NSR), founded in 1996, is a large (500+ employee) information-services company whose offerings span application, data, and infrastructure security.
NeuVector, later acquired by SUSE, provides Kubernetes and container security, including a multi-vector container firewall for multi-cloud environments.
NeuVector Inc.
NordLayer, founded in 2019, provides adaptive network access security spanning secure remote access, cloud app security, and network access control.
NordLayer
Novatech Process Solutions, founded in 1994, advises on OT/ICS cybersecurity and industrial automation.
Novatech Process Solutions
Nuix, founded in 2000, provides investigation, incident-response, and data-governance technology used for litigation, regulation, privacy, and risk management.
Nuix
nuPSYS, an early-stage German company founded in 2011, provides data-center infrastructure-management and network-security visualization software.
Open Systems International (OSI), a large (200+ employee) company founded in 1984, builds SCADA and grid-management software with embedded OT security for utilities.
Open Systems International
OpenDNS, founded in 2005 and later acquired by Cisco, provides a cloud-delivered network-security service blocking malware, botnets, and phishing regardless of port or protocol.
OpenDNS
Openpath, founded in 2016, builds smart office-security hardware and an app (Openpath Access) that lets employees enter buildings using their smartphones with encrypted, permissioned access.
Opscura, an early-stage company founded in 2021, provides zero-trust remote-access technology for industrial control systems and OT environments.
Opscura
OTIFYD, an early-stage Israeli company founded in 2019, provides OT and ICS network-security monitoring and threat detection for industrial environments.
OTIFYD
Otonomo, founded in Israel in 2015, runs a connected-vehicle data platform and marketplace that reportedly ingests more than 4 billion data points from over 40 million vehicles worldwide.
Otonomo
OTORIO, founded in Israel in 2017, provides OT security and digital-risk-management technology aimed at safe, reliable industrial digitalization.
Otorio
Palitronica, an early-stage Canadian company founded in 2019, provides hardware-based cybersecurity for critical infrastructure and industrial control systems.
Palitronica
Path Network, an early-stage company founded in 2019, provides DDoS mitigation and network-security services on its own global network infrastructure.
Path Network
Perimeter81 (formerly SaferVPN), founded in Israel in 2013 and later acquired by Check Point, provides VPN and software-defined-perimeter technology for secure remote access to cloud and on-premises resources.
pfSense, dating to 2004, is a free, open-source FreeBSD distribution built for use as a firewall and router with a web management interface.
PfSense
PhishLabs, founded in 2008 and later acquired by HelpSystems, built 24/7 services to detect attacks that exploit people rather than systems.
Promia, an early-stage company founded in 1993, provides embedded security software for critical infrastructure and defense systems.
Promia
Quad9, a Swiss nonprofit founded in 2016, runs a free, security-focused public DNS resolver that blocks malicious domains.
Quod9
RAFAEL Advanced Defence Systems, a large (5,000+ employee) Israeli company founded in 1948, provides cybersecurity and defense electronics for military and critical-infrastructure clients.
RAFAEL Advanced Defence Systems Ltd.
Raxis, founded in 2011, provides penetration testing, risk assessments, incident response, and social-engineering services.
Raxis
Raz-Lee Security, founded in 1983, provides security compliance and monitoring software for IBM i (AS/400) systems.
Red Button, founded in Israel in 2013, provides DDoS testing and attack-simulation services to validate an organization's defenses.
Red Button
Red Trident, founded in 2019, advises on and engineers OT and ICS cybersecurity.
Red Trident Inc
RedWolf Security, founded in Canada in 2010, provides DDoS testing and cyberattack-simulation services.
RedWolf Security
Regulus Cyber, founded in Israel in 2016, detects GPS spoofing and keeps autonomous systems reliably positioned.
Regulus
RiskIQ, founded in 2009 and later acquired by Microsoft, is built to detect threats that undermine the internet's open standards and information-sharing principles.
RiskIQ
Ruckus (CommScope), a large (1,000+ employee) company founded in 2004, provides secure, reliable Wi-Fi and wired networking technology.
Ruckus – CommScope
SCADAfence, founded in Israel in 2014 and later acquired by Honeywell, develops cybersecurity technology purpose-built for ICS/SCADA networks in critical infrastructure and manufacturing.
SCADAfence Ltd.
SCIT Labs, an early-stage company founded in 2010, provides self-cleansing intrusion-tolerance technology to shrink attack windows on servers.
SCIT Labs
SecureLink, founded in 2003 and later acquired by Investcorp, specializes in secure remote connections between regulated enterprises (healthcare, energy, gaming, finance) and their technology vendors.
SecureLink, Inc.
Skybox Security, founded in 2002, gives security teams visibility across the attack surface by pulling insight from otherwise siloed security data.
SOOSAN INT, a South Korean company founded in 1996, provides border and airport security-screening technology.
SOOSAN INT
ST Engineering, a large (10,000+ employee) Singaporean company founded in 1997, is a global technology and defense group with cybersecurity offerings.
ST Engineering
StackPath provides a web-services platform unifying enterprise security, performance, and scale through collaborative intelligence.
Structured Technologies, founded in 1995, provides IT infrastructure and network-security consulting.
Structured Technologies
Talon Cyber Security, founded in Israel in 2021 and later acquired by Palo Alto Networks, provided cybersecurity technology for distributed workforces.
Tausight, founded in 2018, focuses on helping healthcare CIOs and CISOs protect the confidentiality, integrity, and availability of patients' protected health information.
Tausight
TechGuard Security, founded in 2004, provides cybersecurity and network-defense services for government and enterprise.
TechGuard Security
Telesoft-Technologies, founded in the UK in 1985, provides network-security and cyber-defense technology for telecom and government.
Telesoft-Technologies Ltd
ThetaRay, a large (250+ employee) Israeli company founded in 2013, uses data-agnostic algorithms to automatically detect unknown threats for financial organizations and critical infrastructure.
ThetaRay
ThreatBlockr, founded in 2016, provides a network-layer threat-blocking and cyber-defense platform.
ThreatBlockr
Tripwire, part of Belden and founded in 1997, provides endpoint detection and response alongside configuration management, file-integrity monitoring, vulnerability management, and log management.
TrustedSec, a large (100+ employee) company founded in 2012, is a well-regarded security-consulting firm known for prioritizing long-term client relationships.
Trustwave, a large (1,000+ employee) company founded in 1995 and later acquired by LevelBlue, combines cloud and managed security services with a team of researchers and ethical hackers.
Ubisec Systems, founded in Canada in 2000, provides network-security and cybersecurity consulting.
Ubisec Systems, Inc.
Vanguard Integrity Professionals, founded in 1996, provides mainframe security software and compliance technology.
Vanguard Integrity Professionals
Veracity, founded in the UK in 2001, provides physical-security and video-surveillance network infrastructure.
Veracity
Verisign, founded in 1995 and later acquired by Symantec, provides domain-name registry and internet-infrastructure security services.
Verisign
Verve, founded in 1996, provides an OT/ICS asset-visibility and industrial-cybersecurity-management platform.
Viasat, a large (5,000+ employee) company founded in 1986, provides satellite-communications and cybersecurity technology for government and commercial clients.
ViaSat, Inc.
