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Top Cybersecurity Companies for Cloud

13 of 35 cybersecurity companies ranked on evidence in the Q4 2026 edition.

Between them, the 35 best-ranked of these 38 cybersecurity companies cover IT services (31), web development (17), cybersecurity (16) and e-commerce development (15). They also list work in United States of America. 35 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

13 of 35 cybersecurity companies ranked on evidence held on 12 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.

How this is ranked About this edition

All cybersecurity companies 13 ranked SMEs 12 ranked

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SB
SecureLink Belgium
IT Services · Web Development · Web Design · Also in Belgium
SecureLink Belgium designs, installs and supports networking, security and data centre systems.
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Why #1: Founded 2003 · Team of 650+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Q
Qualys
IT Services · Web Development · Web Design · Also in United States of America
Qualys, Inc. is a US-listed provider of cloud-based security and compliance software.
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Why #2: Founded 1999, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
EL
Eurokom Ltd
IT Services · Web Development · Web Design · Also in Ireland
Eurokom Ltd is a provider of cloud-delivered security services for business information. The service started in 2002 as a division of a wider security group.
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Why #3 (shared): Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
TC
Topsec Cloud Solutions
IT Services · Web Development · Web Design · Also in Ireland
Topsec Cloud Solutions provides cloud-based, fully managed email and web security.
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Why #3 (shared): Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Z
ZEROSPAM
IT Services · Software Development · IT Solution · Also in Canada
ZEROSPAM is a cloud anti-spam service that blocks harmful and unwanted email before it reaches a customer's network.
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Why #5: Founded 2003, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
SentinelOne
IT Services · Software Development · Web Security · Also in Canada
SentinelOne is a cybersecurity company that sells an AI-based platform covering endpoints, identity, cloud and data.
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Why #6 (shared): Founded 2013, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
SG
Secucloud GmbH
IT Services · E-Commerce Development · Network Security · Also in Germany
Secucloud GmbH is a Hamburg-headquartered cyber-security company that delivers protection from the cloud rather than from hardware.
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Why #6 (shared): Founded 2013, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Aqua Security Software Ltd.
Web Development · Software Development · IT Outsourcing · Also in United States of America
Aqua Security Software Ltd. sells a cloud native security platform. It was founded in 2015, when containers and serverless computing were just emerging.
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Why #8: Founded 2015, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Baffin Bay Networks
IT Services · iOS App · UI/UX Design · Also in Sweden
Swedish cyber security company providing DDoS protection and web application protection for companies and service providers
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Why #9: Founded 2017, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Integris
Integris is a managed IT services company with offices across the United States.
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Why #10 (shared): ISO 27001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Spin Technology
IT Services · E-Commerce Development · IT Security · Also in United States of America
Spin Technology, which trades as Spin.AI, makes SpinOne, a platform that protects data held in cloud software.
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Why #10 (shared): SOC 2, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Sophos
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.
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Why #10 (shared): Client numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
O
Outpost24
IT Services · Web Development · Web Design · Also in Sweden
Outpost24 is a cyber assessment company that helps organisations reduce their exposure to attack before it disrupts them.
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Why #10 (shared): Client numbers stated on its own website, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
AlgoSec
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…
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CP
Check Point Software Technologies, Ltd.
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.
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Cloudlytics
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.
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CrowdStrike
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.
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Cyscale Cloud Security
IT Services · E-Commerce Development · Network Security · Also in Romania
Cyscale Cloud Security makes a cloud-native application protection platform for security teams.
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Data Resolve Technologies
E-Commerce Development · iOS App · Software Development · Also in Bengaluru, India and Mumbai
Data Resolve Technologies makes inDefend, a software suite for spotting insider theft and data leakage inside an organisation.
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Echoworx
IT Services · E-Commerce Development · Cybersecurity · Also in Canada
Echoworx provides email encryption and secure communications for enterprises.
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ExtraHop
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.
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Netskope
Mobile App Development · IT Services · Web Development · Also in United States of America
Netskope is a security and networking company focused on the cloud.
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RS
RSA Security
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.
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S
Securonix
IT Services · E-Commerce Development · IT Security · Also in United States of America
Security analytics and SIEM platform that detects insider threats, cyber threats and fraud, with automated incident response
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Top Cybersecurity Companies for Cloud

SecureLink Belgium

Qualys

Eurokom Ltd

Topsec Cloud Solutions

ZEROSPAM

SentinelOne

Secucloud GmbH

Aqua Security Software Ltd.

Baffin Bay Networks

Integris

Spin Technology

Sophos

Outpost24

AlgoSec

Check Point Software Technologies, Ltd.

Cloudlytics

CrowdStrike

Cyscale Cloud Security

Data Resolve Technologies

Echoworx

ExtraHop

Netskope

RSA Security

Securonix

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