6 Oct 2026 · TrustList Editorial
Edge devices are attacked first, application servers after the patch
Of 30 exploited flaws our desk reported in three weeks, 14 were attacked by the day a fix appeared, ten of them on edge devices, and 11…
40 of 104 cybersecurity companies ranked on evidence in the Q4 2026 edition.
Between them, the 104 cybersecurity companies on this page cover cybersecurity (83), IT services (80), e-commerce development (57) and IT security (42). They also list work in Bengaluru, India, Mumbai and United States of America. 103 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
40 of 104 cybersecurity companies ranked on evidence held on 6 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.
Positions are fixed for the quarter; the next edition is due in January 2027.

IT Services · Web Security · Software Development · Also in India
Our founder, Saket's romance with hacking began in school, during a run-up to one of his exams.
IT Security · IT Outsourcing · IT Consulting · Also in Estonia
Our hard work began with the establishment of our company in Estonia (with e-residency). As Estonia is a Nordic Country, we named our company as Nord Information Security (Nordis).
IT Services · E-Commerce Development · Web Security · Also in United States of America
Cybersecurity software giving visibility and threat detection for industrial OT, IoT and critical infrastructure networks
IT Services · Web Development · Web Design · Also in United Kingdom
NTT Security is the specialist security company within the NTT Group.
IT Services · Web Development · Web Design · Also in United States of America
Software that decrypts ransomware-locked data and gives teams visibility of encrypted traffic in cloud and network environments

IT Services · E-Commerce Development · Web Security · Also in Canada
Ontario cybersecurity firm providing managed detection and response and security services for small and large businesses

Mobile App Development · IT Services · Web Security · Also in United States of America
Palo Alto Networks is a cybersecurity company selling integrated platforms that protect networks, clouds and mobile devices.

IT Services · Web Development · Web Design · Also in United States of America
Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.
Artificial Intelligence - AI · IT Services · E-Commerce Development · Also in Germany
Perseus Cyber Security provides IT security services built around three factors: people, technology and emergency response.
IT Services · E-Commerce Development · IT Networking · Also in United States of America
Picus Security develops a platform for testing whether an organisation's security defences actually stop attacks.
E-Commerce Development · IT Security · Web Security · Also in Norway
Promon is a Norwegian company that protects applications from the inside while they run.
Artificial Intelligence - AI · IT Services · E-Commerce Development · Also in Germany
QuoScient is a security company that helps organisations defend against digital threats. It serves customers across all industries and says it was built by operators for operators.

IT Services · IT Security · Web Security · Also in United States of America
RangeForce provides a cloud-based cyber range for training defensive security teams.
IT Services · E-Commerce Development · Web Security · Also in Canada
Red Canari is an information security consultancy staffed by experienced security professionals, with more than 30 years of combined experience.

E-Commerce Development · IT Security · Web Security · Also in Poland
REDTEAM.PL is a Polish cyber security firm run by senior consultants.
IT Services · Web Development · Web Design · Also in Ireland
Resilient Defence provides managed security services that run around the clock. Each service is shaped around the client's own business and security needs.
E-Commerce Development · IT Security · IT Solution · Also in Ukraine
RMRF is a Ukrainian cybersecurity team based in Kyiv. Its services arm operates security controls for clients, mainly on Palo Alto Networks products, while its technology arm…
IT Services · E-Commerce Development · IT Networking · Also in Canada
RSA Security is a cybersecurity vendor that focuses on identity. It sells authentication, access management and governance products to organisations that handle sensitive data.
E-Commerce Development · IT Security · IT Networking · Also in Poland
Secfense Sp. z o.o. makes access security software that adds stronger login protection to applications without altering their code or databases.

IT Services · IT Security · IT Networking · Also in Canada
Secureworks is a cybersecurity company that helps organisations prevent, detect and respond to attacks. It is part of the Dell Technologies family of brands.
IT Services · E-Commerce Development · Web Development · Also in United States of America
Onapsis cybersecurity solutions automate the monitoring and protection of your SAP and Oracle applications, keeping them compliant and safe from insider and outsider threats.

IT Services · IT Security · Network Optimization · Also in Slovakia
SophistIT is an IT solutions consultancy in Bratislava, Slovakia. It concentrates on protecting company data and systems against cyber threats and on meeting security regulations.
Artificial Intelligence - AI · IT Services · E-Commerce Development · Also in Germany
IT Services · IT Security · IT Networking · Also in United States of America
ThreatQuotient makes ThreatQ, a threat intelligence platform for security operations teams.
For vendors
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Every other way we rank cybersecurity companies, by what they do and where they are.
Articles on this subject first, then the newest.
6 Oct 2026 · TrustList Editorial
Of 30 exploited flaws our desk reported in three weeks, 14 were attacked by the day a fix appeared, ten of them on edge devices, and 11…
2 Oct 2026 · TrustList Editorial
Island, of Dallas, Texas, announced a $400 million Series F on 24 September 2026, led by Evolution Equity Partners, at a valuation it…
2 Oct 2026 · TrustList Editorial
Poland’s Government Plenipotentiary for Cybersecurity recommended on 2 October 2026 that entities in the national cybersecurity system…
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