6 Oct 2026 · TrustList Editorial
Vendors gave a median 48 days' warning before changing what customers use
Of 40 vendor-change items our desk published from 20 September to 5 October, 27 record both dates: median notice 48 days, range 0 to 390,…
26 of 66 cybersecurity companies ranked on evidence in the Q4 2026 edition.
Between them, the 66 cybersecurity companies on this page cover IT services (57), cybersecurity (39), web development (36) and web design (33). They also list work in United States of America. 66 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
26 of 66 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.
E-Commerce Development · Data Security · Also in Germany
Chino.io combines legal and technical consulting with an online compliance platform. It helps digital health teams meet data protection and security rules.
Why #20 (shared): ISO 27001, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.

IT Services · Web Development · Web Design · Also in United States of America
Sophos is a cybersecurity company that protects laptops, servers, mobile devices and networks against threats such as ransomware, malware, phishing and data theft.
Why #20 (shared): nothing checkable yet, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

IT Services · Web Development · Web Design · Also in United States of America
AlgoSec makes network security management software. Its Horizon platform automates application connectivity and security policy across cloud, software-defined and on-premise…

IT Services · Web Development · Web Design · Also in Spain
Blueliv is a cyber threat intelligence provider headquartered in Barcelona, Spain.
IT Services · Web Development · Web Design · Also in United Kingdom
Check Point Software Technologies Ltd. is a cyber security company that supplies products to corporate enterprises and governments worldwide.

IT Services · E-Commerce Development · Software Development · Also in Pune
Cloudlytics provides software and services that give organisations visibility and security control over their cloud estates.
IT Services · E-Commerce Development · IT Solution · Also in United States of America
Cobalt.io provides offensive security testing, from human-led penetration tests to AI-assisted and autonomous testing.

Artificial Intelligence - AI · IT Services · E-Commerce Development · Also in Canada
CrowdStrike is a cybersecurity company that sells a cloud-native platform for stopping breaches.

IT Services · Web Development · Web Design · Also in United Kingdom
Cyber Risk Management Group, known as CRMG, is a cyber security and information risk consultancy.

IT Services · E-Commerce Development · Network Security · Also in Romania
Cyscale Cloud Security makes a cloud-native application protection platform for security teams.

E-Commerce Development · iOS App · Network Security · Also in Bengaluru, India and Mumbai
Data Resolve Technologies makes inDefend, a software suite for spotting insider theft and data leakage inside an organisation.

IT Services · E-Commerce Development · Network Security · Also in Canada
Difenda is a cybersecurity services firm. Its core offer is managed detection and response, which uses analytics, automation and machine learning to spot and handle threats.

IT Services · E-Commerce Development · Cybersecurity · Also in Canada
Echoworx provides email encryption and secure communications for enterprises.

IT Services · Web Development · Web Design · Also in United Kingdom
ExtraHop sells network visibility and analytics software. It reads traffic across an organisation's network to help security and IT teams find threats and performance problems.

IT Services · Web Development · Web Design · Also in United States of America
Forescout Technologies develops security software that finds and classifies devices connected to a network and lets organisations act on what they find.

IT Services · E-Commerce Development · IT Solution
Goldilock makes security products that physically cut digital assets off from the internet and reconnect them on demand.

IT Services · E-Commerce Development · Software Development · Also in France
IDEMIA is a technology group specialising in biometrics and cryptography.

Web Development · Web Design · UI/UX Design · Also in United Kingdom
Immersive Labs runs an online platform for building and measuring cyber security skills.
IT Services · Web Development · Web Design · Also in Russia
Kaspersky is a cybersecurity company that develops endpoint protection and related security products.

IT Services · Web Development · Web Design · Also in United States of America
Kenna Security offers a software-as-a-service platform for risk and vulnerability intelligence.

Mobile App Development · IT Services · Web Development · Also in United States of America
Netskope is a security and networking company focused on the cloud.
IT Services · Web Development · Web Design · Also in United Kingdom
NTT Security is the specialist security company within the NTT Group.
IT Services · E-Commerce Development · Network Security · 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.

IT Services · Web Development · Web Design · Also in United Kingdom
Secarma Ltd is an independent cyber security consultancy known mainly for penetration testing. It uses ethical hacking methods to test an organisation's defences.
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Articles on this subject first, then the newest.
6 Oct 2026 · TrustList Editorial
Of 40 vendor-change items our desk published from 20 September to 5 October, 27 record both dates: median notice 48 days, range 0 to 390,…
6 Oct 2026 · TrustList Editorial
The Digital Agency asked suppliers for views on four FY2027 procurements and published version 2.4 of its Government Interoperability…
6 Oct 2026 · TrustList Editorial
Clusters that sign engineers in through Identity Service for GKE must move to Workforce Identity Federation before they reach 1.37, and…
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