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Top Cybersecurity Companies for Cloud

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.

How this is ranked About this edition

All cybersecurity companies 26 ranked SMEs 23 ranked

Filter by fitbudget, engagement, size and more

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 (shared): Founded 1999, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Secon Cyber
IT Services · Web Development · Web Design · Also in United Kingdom
Secon Cyber is a cyber security firm that works with organisations of different sizes.
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Why #2 (shared): Founded 1999, as stated on its own website, read 5 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 #4 (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 #4 (shared): Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Herjavec Group
IT Services · E-Commerce Development · Network Security · Also in Canada
Cybersecurity company providing managed security services and consulting to large organisations in the US, UK and Canada
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Why #6 (shared): Founded 2003, as stated on its own website, read 6 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 #6 (shared): Founded 2003, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
I
Integrity360
IT Services · Web Development · Web Design · Also in Ireland
Integrity360 is a cyber security firm established in 2005. It runs security operations centres and offers a full range of security services to enterprise clients.
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Why #8: Founded 2005, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Cyberfort Group
IT Services · Web Development · Web Design · Also in United Kingdom
Cyberfort Group is a cyber security company covering the full security lifecycle.
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Why #9: In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
ISSP - Information Systems Security Partners
E-Commerce Development · Network Security · Cloud Security · Also in Poland
Cybersecurity company offering assessment, penetration testing, managed detection and threat intelligence to businesses and governments
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Why #10: Founded 2008, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Deep Secure
Mobile App Development · Web Development · Web Design · Also in United Kingdom
Deep Secure is a privately owned cyber security company with its headquarters in Malvern, UK, and a satellite office in London.
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Why #11: Founded 2009, as stated on its own website, read 5 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 #12 (shared): Founded 2013, 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 #12 (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 #14 (shared): Founded 2015, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Optiv Security Inc.
E-Commerce Development · Software Development · Cybersecurity · Also in United States of America
Optiv Security Inc. is a cybersecurity solutions provider formed in 2015 by the merger of Accuvant and FishNet Security.
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Why #14 (shared): 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 #16 (shared): Founded 2017, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Baffin Bay Networks
IT Services · Web Development · Web Design · Also in Sweden
Baffin Bay Networks is a Swedish cybersecurity company founded in 2017 by industry specialists.
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Why #16 (shared): Founded 2017, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
NCC Group
IT Services · Web Development · Web Design · Also in United Kingdom
NCC Group is a global cyber security and risk mitigation firm headquartered in Manchester, UK.
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Why #18 (shared): Team of 2,000+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
SS
secunet Security Networks AG
Artificial Intelligence - AI · IT Services · E-Commerce Development · Also in Germany
secunet Security Networks AG is a German IT security company. It says more than 500 experts work in cryptography, e-government, business security and automotive security, building…
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Why #18 (shared): Team of 500+, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
SC
SSH Communications Security
IT Services · Web Development · Web Design · Also in Finland
SSH Communications Security develops software for securing access to critical systems and protecting encrypted connections.
Write a review
Why #20 (shared): nothing checkable yet, 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 #20 (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.
Write a review
Why #20 (shared): SOC 2, as stated on its own website, read 6 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.
Write a review
Why #20 (shared): nothing checkable yet, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
KI
Kobalt.io
IT Services · E-Commerce Development · Network Security · Also in Canada
Kobalt.io is a cybersecurity and compliance firm that acts as an outsourced security team.
Write a review
Why #20 (shared): nothing checkable yet, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.

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Top Cybersecurity Companies for Cloud

SecureLink Belgium

Qualys

Secon Cyber

Eurokom Ltd

Topsec Cloud Solutions

Herjavec Group

ZEROSPAM

Integrity360

Cyberfort Group

ISSP - Information Systems Security Partners

Deep Secure

Secucloud GmbH

SentinelOne

Aqua Security Software Ltd.

Optiv Security Inc.

Baffin Bay Networks

Baffin Bay Networks

NCC Group

secunet Security Networks AG

SSH Communications Security

Integris

Spin Technology

Outpost24

Kobalt.io

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