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Top Cybersecurity Companies for IT Security

28 of 74 cybersecurity companies ranked on evidence in the Q4 2026 edition.

Between them, the 74 cybersecurity companies on this page cover cybersecurity (59), e-commerce development (44), IT services (42) and network security (42). They also list work in United States of America, Czech Republic, Poland and Estonia. 74 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

28 of 74 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 28 ranked SMEs 25 ranked

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SecurityScorecard
IT Services · Web Security · Cybersecurity · Also in United States of America
SecurityScorecard rates the cybersecurity of companies from outside their networks. Customers use the ratings to watch their own exposure and that of suppliers.
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Why #1: SOC 2, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
InfoGuard AG
E-Commerce Development · IT Services · Network Security · Also in Switzerland
Swiss cyber security provider with round-the-clock monitoring, testing and consulting for organisations in the DACH region
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Why #2 (shared): Founded 2001 · Team of 350+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
B
Bitdefender
E-Commerce Development · Web Security · Data Security · Also in Romania
Cybersecurity software maker protecting consumers, small businesses and enterprises across endpoints and hybrid infrastructure
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Why #2 (shared): Founded 2001 · Team of 1,700+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
SG
SecureLink Group
E-Commerce Development · Cloud Security · Cybersecurity · Also in Netherlands
SecureLink Group is a cybersecurity company that began in Europe and has since grown beyond the continent.
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Why #4: Founded 2003 · Team of 2,000+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
ESET
IT Services · Network Security · Cybersecurity · Also in Slovakia
ESET develops security software for personal devices and company networks. It has been in the business since 1987, and its products run on Windows, macOS, Android and Linux.
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Why #5: Founded 1987, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
EMM
Mobile App Development · UI/UX Design · Web Development · Also in Slovakia
EMM is a Slovak technology company working in security and complex IT solutions since 1991.
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Why #6 (shared): Founded 1991, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
AEC
IT Services · Network Security · Data Security · Also in Czech Republic
AEC was founded in 1991 as an information security company. In September 2023 it took the Aricoma name together with three sister companies, and its security work now sits in…
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Why #6 (shared): Founded 1991, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
SECUDE
E-Commerce Development · IT Services · Network Security · Also in Switzerland
SECUDE is a security software company with a long record in protecting data in SAP environments.
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Why #8: Founded 1996, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
CA
comforte AG
E-Commerce Development · Data Security · Cloud Security · Also in Germany
comforte AG began in 1998, started by the creators of a connectivity product for mission-critical systems.
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Why #9: Founded 1998, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
SecuRing
Mobile App Development · E-Commerce Development · Network Security · Also in Poland
SecuRing is an application security company founded in 2003. It works for banks, insurers, telecom providers, government bodies and software houses, concentrating on the security…
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Why #10: Founded 2003, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
CYBERYG
E-Commerce Development · IT Services · Network Security · Also in Czech Republic
CYBERYG is a cybersecurity company run by people with two decades behind them in international business development.
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Why #11: 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 #12 (shared): Founded 2008, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Malwarebytes
IT Services · Network Security · Cybersecurity · Also in United States of America
Malwarebytes is a cybersecurity company whose software defends computers and business endpoints against malware, ransomware and exploits that traditional antivirus can miss.
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Why #12 (shared): Founded 2008, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
CYBERS
IT Services · Network Security · IT Solution · Also in Estonia
CYBERS is an information security company headquartered in Tallinn, Estonia. It was founded in 2010 and was formerly called Security Software.
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Why #14: Founded 2010, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
7ASecurity
Mobile App Development · Web Security · UI/UX Design · Also in India
7ASecurity is a security testing company founded by Abraham Aranguren and operating since 2011. It is based in the EU and describes itself as GDPR-aware.
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Why #15 (shared): Founded 2011, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Heimdal Security
IT Services · Network Security · IT Solution · Also in Romania
Cybersecurity vendor offering a unified platform for endpoint, network, email and identity protection to enterprises and MSPs
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Why #15 (shared): Founded 2011, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
buguroo
E-Commerce Development · Network Security · Web Security · Also in Spain
buguroo is an international cyber security company headquartered in Madrid, with offices in North America, South America and across Europe.
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Why #15 (shared): In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Citadelo
IT Services · Network Security · Cybersecurity · Also in Slovakia
Citadelo is a team of ethical hackers that tests how well companies protect their systems and data.
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Why #18: In business 14+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Betta Security
E-Commerce Development · Network Security · Web Security · Also in Ukraine
Betta Security provides information security services and says it has done so for over 13 years.
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Why #19: In business 13+ years, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
ronNet Cybersecurity
Artificial Intelligence - AI · E-Commerce Development · IT Services · Also in United States of America
ronNet Cybersecurity, written in its own profile as IronNet, was founded in 2014 as a cybersecurity company serving enterprises, industries and governments.
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Why #20 (shared): Founded 2014, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
VPGC
IT Services · Network Security · Web Security · Also in Czech Republic
VPGC represents global makers of network and security products in the CZ and SK markets. It began in 2014 as a business development partner for foreign IT vendors on local markets.
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Why #20 (shared): Founded 2014, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
OMVAPT
IT Services · Network Security · Web Security · Also in Estonia
OMVAPT is an information security firm whose name stands for vulnerability assessment and penetration testing.
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Why #22 (shared): Founded 2016, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Futurae Technologies AG
E-Commerce Development · Network Security · Cybersecurity · Also in Switzerland
Futurae Technologies AG makes user authentication software. Researchers from the ETH Zurich security group started the firm in 2016.
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Why #22 (shared): Founded 2016, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
TRAPMINE Inc.
IT Services · IT Consulting · Cybersecurity · Also in Estonia
TRAPMINE Inc. is a cybersecurity company founded in 2016 by security researchers.
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Why #22 (shared): Founded 2016, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

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Top Cybersecurity Companies for IT Security

SecurityScorecard

InfoGuard AG

Bitdefender

SecureLink Group

ESET

EMM

AEC

SECUDE

comforte AG

SecuRing

CYBERYG

ISSP - Information Systems Security Partners

Malwarebytes

CYBERS

7ASecurity

Heimdal Security

buguroo

Citadelo

Betta Security

ronNet Cybersecurity

VPGC

OMVAPT

Futurae Technologies AG

TRAPMINE Inc.

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