Companies · category

Top Cybersecurity Companies for IT Security

19 of 45 cybersecurity companies ranked on evidence in the Q4 2026 edition.

Between them, the 45 cybersecurity companies on this page cover cybersecurity (40), network security (28), IT services (27) and e-commerce development (25). They also list work in United States of America, Estonia, Czech Republic and Poland. 45 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

19 of 45 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 19 ranked SMEs 16 ranked

Filter by fitbudget, engagement, size and more

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.
Write a review
Why #1: SOC 2 · Client numbers stated on its own website, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
InfoGuard AG
Network Security · IT Services · E-Commerce Development · Also in Switzerland
Swiss cyber security provider with round-the-clock monitoring, testing and consulting for organisations in the DACH region
Write a review
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
Write a review
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.
Write a review
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.
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.
Write a review
Why #5 (shared): Founded 1991, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
AEC
Network Security · IT Services · 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…
Write a review
Why #5 (shared): Founded 1991, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
CYBERYG
Network Security · IT Services · E-Commerce Development · Also in Czech Republic
CYBERYG is a cybersecurity company run by people with two decades behind them in international business development.
Write a review
Why #7: In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Malwarebytes
Network Security · IT Services · 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.
Write a review
Why #8 (shared): Founded 2008, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
ISSP
Network Security · E-Commerce Development · Cloud Security · Also in Poland
Cybersecurity company offering assessment, penetration testing, managed detection and threat intelligence to businesses and governments
Write a review
Why #8 (shared): Founded 2008, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
CYBERS
Network Security · IT Services · 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.
Write a review
Why #10: Founded 2010, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
buguroo
Network Security · E-Commerce Development · 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.
Write a review
Why #11 (shared): In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Heimdal Security
Network Security · IT Services · IT Solution · Also in Romania
Cybersecurity vendor offering a unified platform for endpoint, network, email and identity protection to enterprises and MSPs
Write a review
Why #11 (shared): Founded 2011, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Betta Security
Network Security · E-Commerce Development · Web Security · Also in Ukraine
Betta Security provides information security services and says it has done so for over 13 years.
Write a review
Why #13: 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 · Network Security · 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.
Write a review
Why #14: Founded 2014, as stated on its own website, read 6 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.
Write a review
Why #15 (shared): Founded 2016, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
OMVAPT
Network Security · IT Services · Web Security · Also in Estonia
OMVAPT is an information security firm whose name stands for vulnerability assessment and penetration testing.
Write a review
Why #15 (shared): Founded 2016, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
NG
Nordis Global
Network Security · IT Consulting · IT Outsourcing · Also in Estonia
Nordis Global is an information security company established in Estonia in June 2017.
Write a review
Why #17: Founded 2017, as stated on its own website, read 9 Oct 2026
Not yet on record: client reviews, vetting.
Veronym
Network Security · IT Services · E-Commerce Development · Also in Germany
German cloud cybersecurity service offering enterprise-grade protection to small and medium-sized companies through a subscription
Write a review
Why #18: Founded 2018, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
nFlo Sp. z o.o.
E-Commerce Development · Web Security · IT Solution · Also in Poland
nFlo Sp. z o.o. is a technology company based in Poland's capital. It focuses on cybersecurity, IT infrastructure and cloud services.
Write a review
Why #19: ISO 27001, 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
1
10Guards
Mobile App Development · IT Services · E-Commerce 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.
Write a review
Advantio
IT Services · E-Commerce Development · Data Security · Also in Ireland
Advantio is a cybersecurity services provider. It combines technology with managed, advisory and testing services so that organisations can raise their cyber resilience and meet…
Write a review
A
Anomali
Artificial Intelligence - AI · E-Commerce Development · Cybersecurity · Also in United States of America
Anomali is a cybersecurity company whose platform brings threat intelligence together with security operations.
Write a review
Blaze Information Security
Network Security · E-Commerce Development · Web Security · Also in Brazil
Blaze Information Security is a privately held, independent security firm formed from years of combined experience.
Write a review
Boxtrap Security
IT Services · Data Security · Software Development · Also in Czech Republic
Boxtrap Security is a consultancy working in information security.
Write a review

For vendors

Want to see your company here?

The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.

Not on TrustList yet? Add your company or claim its listing, free.

Get vetted

Free

We check your registration, your website and your clients
Approved listings show the Verified badge here and on their profile
It earns a rank number and counts towards the TrustList Score; renewed yearly

Apply for vetting How vetting works

Sponsor this ranking

Paid · always labelled

A Sponsored card above the ranked list, up to three per ranking
Marked Sponsored, and it never changes the order
Booked by the month; cancel any time

Sponsor this ranking See prices

Same subject

More cybersecurity companies rankings

Every other way we rank cybersecurity companies, by what they do and where they are.

All 73 rankings

Articles

More categories

Jump to another ranked category.

All categories

Keep exploring

More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.

Top Cybersecurity Companies for IT Security

SecurityScorecard

InfoGuard AG

Bitdefender

SecureLink Group

EMM

AEC

CYBERYG

Malwarebytes

ISSP

CYBERS

buguroo

Heimdal Security

Betta Security

ronNet Cybersecurity

TRAPMINE Inc.

OMVAPT

Nordis Global

Veronym

nFlo Sp. z o.o.

10Guards

Advantio

Anomali

Blaze Information Security

Boxtrap Security

Want to see your company here?

Get vetted

Sponsor this ranking

More cybersecurity companies rankings

Related reading

OpenJDK October update fixes 46 CVEs; Corretto builds are out

AWS will not fix two flaws in its retired Multi Model Server

Fortinet ships FortiOS fixes for AI-found flaws, details on 10 November

More categories

More on TrustList