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Top Cybersecurity Companies for IT Networking

9 of 30 cybersecurity companies ranked on evidence in the Q4 2026 edition.

Between them, the 30 cybersecurity companies on this page cover IT services (26), network security (20), web development (15) and cybersecurity (15). They also list work in United States of America, Canada, Russia and Switzerland. 30 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

9 of 30 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 9 ranked SMEs 8 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.
InfoTeCS JSC
IT Services · Network Security · Web Development · Also in Russia
InfoTeCS is a maker of information security software. Its ViPNet products let customers set up and control virtual private networks and protect each machine and application…
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Why #2: In business 35+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Q
Qualys
IT Services · Network Security · Web Development · 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 #3: Founded 1999, as stated on its own website, read 6 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: Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
FC
Fidelis Cybersecurity
IT Services · Network Security · E-Commerce Development · Also in United States of America
Fidelis Cybersecurity sells threat detection and response products to large organisations.
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Why #5: In business 20+ years, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
TS
TBG Security
IT Services · Network Security · Web Development · Also in United States of America
TBG Security is a cybersecurity consultancy that helps organisations meet regulatory requirements and reduce the risk of a breach.
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Why #6: In business 15+ years, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
G
GoSecure
IT Services · E-Commerce Development · Web Security · Also in Canada
GoSecure is a cybersecurity firm founded in 2012 with one stated goal, which is preventing breaches.
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Why #7: Founded 2012, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
InfoWatch
IT Services · Network Security · Web Development · Also in Russia
InfoWatch is a European software company focused on protecting sensitive data and defending organisations against information-security threats.
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Why #8: In business 10+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
NEVIS Security
IT Services · Network Security · Web Development · Also in Switzerland
NEVIS Security develops identity and access software for companies that need strong, convenient security for their customers' online accounts.
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Why #9: Founded 2020 · Team of 60+, as stated on its own website, read 5 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
1
10Guards
Mobile App Development · IT Services · Web Development · Also in Kyiv
10Guards is a cybersecurity consultancy from Ukraine. Its team of ethical hackers and consultants helps companies manage cyber risk while keeping the business flexible.
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COMGUARD a.s.
IT Services · Network Security · Network Optimization · Also in Czech Republic
COMGUARD a.s. is a value-added distributor of security and networking products that also provides expert services and training.
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DigitalDefence
IT Services · Network Security · E-Commerce Development · Also in Canada
DigitalDefence is a cybersecurity company that assesses data security and responds to security and privacy breaches.
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ensec AG
IT Services · Network Security · E-Commerce Development · Also in Switzerland
ensec AG is a Swiss company focused on information security. It covers the whole path from first analysis to running security systems.
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ESKA
Mobile App Development · Network Security · Web Development · Also in Ukraine
ESKA is a cybersecurity and IT services provider organised around three teams that test, defend and govern a client's security.
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GI
Group-IB
IT Services · Network Security · Web Development · Also in Russia
Group-IB is a Singapore-based cybersecurity company that develops technology to investigate, prevent and fight digital crime.
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Hacken
Network Security · E-Commerce Development · Network Optimization · Also in Estonia
Hacken is a security auditor for the Web3 world, checking the code behind blockchain projects for weaknesses.
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I
IoTium
IT Services · Web Development · Web Design · Also in United States of America
IoTium offers a managed, software-defined network for industrial internet of things setups.
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ISARA Corporation
IT Services · Network Optimization · Software Development · Also in Canada
ISARA Corporation is a security company that builds quantum-safe cryptography for use in real systems.
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PS
Picus Security
IT Services · Network Security · E-Commerce Development · Also in United States of America
Picus Security develops a platform for testing whether an organisation's security defences actually stop attacks.
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QI
Quadrant Information Security
IT Services · Web Development · Web Design · Also in United States of America
Quadrant Information Security is a cybersecurity company offering consulting and managed security services.
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RL
REBASOFT Limited
IT Services · Web Development · Web Design · Also in United Kingdom
REBASOFT Limited makes software for network and security teams, built by people who have run and secured networks themselves.
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RS
RSA Security
IT Services · Network Security · E-Commerce Development · 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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SC
Sapien Cyber
IT Services · Web Development · Web Design · Also in Australia
Sapien Cyber provides cybersecurity for operational technology, such as industrial SCADA networks.
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SS
Secfense Sp. z o.o.
Network Security · E-Commerce Development · Network Optimization · 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.
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Top Cybersecurity Companies for IT Networking

SecureLink Belgium

InfoTeCS JSC

Qualys

Topsec Cloud Solutions

Fidelis Cybersecurity

TBG Security

GoSecure

InfoWatch

NEVIS Security

10Guards

COMGUARD a.s.

DigitalDefence

ensec AG

ESKA

Group-IB

Hacken

IoTium

ISARA Corporation

Picus Security

Quadrant Information Security

REBASOFT Limited

RSA Security

Sapien Cyber

Secfense Sp. z o.o.

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