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List of Computer and Network Security Companies

Selling into Computer and Network Security? Here are its companies, biggest first, including S2GRUPO, Netwrix Corporation and YesWeHack. Open a company to see its revenue range, headcount, tech stack and the people to contact.

Company NameIndustryLocationFundingRevenueEmployees
S2GRUPO logo
S2GRUPO
Computer and Network Security
Spain, Valencian Community, el Grau de Castello/grao
$500M - $1B
769
Netwrix Corporation logo
Netwrix Corporation
Computer and Network Security
United States, Texas, Frisco
$1B - $10B
761
YesWeHack logo
YesWeHack
Computer and Network Security
France, Île-de-France, Paris
$51M
$50M - $100M
759
ThreatLocker logo
ThreatLocker
Computer and Network Security
United States, Florida, Orlando
$363M
$1B - $10B
739
Chainguard logo
Chainguard
Computer and Network Security
United States, Washington, Kirkland
$892M
$1B - $10B
738
Google Cloud Security logo
Google Cloud Security
Computer and Network Security
United States, California, Mountain View
$250M - $500M
729
Simeio logo
Simeio
Computer and Network Security
United States, Georgia, Alpharetta
$250M - $500M
725
Axonius logo
Axonius
Computer and Network Security
United States, New York, New York
$865M
$1B - $10B
723
Hacker Combat™ logo
Hacker Combat™
Computer and Network Security
United States, New Jersey
$100M - $250M
722
Synophic Worldwide logo
Synophic Worldwide
Computer and Network Security
United States, California, Cupertino
$25M - $50M
716
Quantinuum logo
Quantinuum
Computer and Network Security
United States, Colorado, Broomfield
$2.7B
$250M - $500M
708
LastPass logo
LastPass
Computer and Network Security
United States, Massachusetts, Boston
$250M - $500M
701
VikingCloud logo
VikingCloud
Computer and Network Security
United States, Illinois, Chicago
$230M
$100M - $250M
697
AhnLab, Inc. logo
AhnLab, Inc.
Computer and Network Security
South Korea, Gyeonggi-do, Seongnam-si
$1B - $10B
696
NortonLifeLock logo
NortonLifeLock
Computer and Network Security
United States, Arizona, Tempe
$1.2B
$500M - $1B
692
I-TRACING logo
I-TRACING
Computer and Network Security
France, Île-de-France, Courbevoie
$537M
$1B - $10B
686
Comodo logo
Comodo
Computer and Network Security
United States, New Jersey, Bloomfield
$500M - $1B
683
Semperis logo
Semperis
Computer and Network Security
United States, New Jersey, Hoboken
$498M
$1B - $10B
677
Vectra AI logo
Vectra AI
Computer and Network Security
United States, California, San Jose
$353M
$500M - $1B
675
Telos Corporation logo
Telos Corporation
Computer and Network Security
United States, Virginia, Ashburn
$43K
$100M - $250M
671
NEVERHACK logo
NEVERHACK
Computer and Network Security
France, Île-de-France, Paris
$17M
$10M - $25M
670
Securonix logo
Securonix
Computer and Network Security
United States, Texas, Plano
$1.1B
$250M - $500M
670
Dragos, Inc. logo
Dragos, Inc.
Computer and Network Security
United States, Maryland, Hanover
$438M
$500M - $1B
669
Trustwave, A LevelBlue Company logo
Trustwave, A LevelBlue Company
Computer and Network Security
United States, Illinois, Chicago
$10M
$500M - $1B
665
Network Intelligence logo
Network Intelligence
Computer and Network Security
United States, Texas, Plano
$4.8M
$50M - $100M
664
Advens logo
Advens
Computer and Network Security
France, Île-de-France, Paris
$10M - $25M
645
Help AG, an e& enterprise company logo
Help AG, an e& enterprise company
Computer and Network Security
United Arab Emirates, Dubayy, Dubai
$50M - $100M
636
Silverfort logo
Silverfort
Computer and Network Security
United States, Texas, Plano
$223M
$500M - $1B
633
BlueVoyant logo
BlueVoyant
Computer and Network Security
United States, New York, New York
$666M
$250M - $500M
622
WithSecure logo
WithSecure
Computer and Network Security
Finland, Southwest Finland, Helsinki
$100M - $250M
607
Sysdig logo
Sysdig
Computer and Network Security
United States, California, San Francisco
$730M
$500M - $1B
605
BigID logo
BigID
Computer and Network Security
United States, New York, New York
$306M
$500M - $1B
596
Cobalt logo
Cobalt
Computer and Network Security
United States, California, San Francisco
$37M
$250M - $500M
596
Yubico logo
Yubico
Computer and Network Security
Sweden, Stockholm, Stockholm
$292M
$500M - $1B
595
Keyfactor logo
Keyfactor
Computer and Network Security
United States, Ohio, Independence
$212M
$500M - $1B
590
NetSPI logo
NetSPI
Computer and Network Security
United States, Minnesota, Minneapolis
$500M
$1B - $10B
587
Malwarebytes logo
Malwarebytes
Computer and Network Security
United States, California, Santa Clara
$180M
$250M - $500M
586
FirmGuard logo
FirmGuard
Computer and Network Security
United States, California, Campbell
$20M
$500M - $1B
577
CyberNow Labs logo
CyberNow Labs
Computer and Network Security
United States, Texas, Houston
$250M - $500M
574
Defense Information Systems Agency logo
Defense Information Systems Agency
Computer & Network Security
United States, Maryland, Fort Meade
$1M - $10M
572
eSentire logo
eSentire
Computer and Network Security
Canada, Ontario, Waterloo
$411M
$500M - $1B
572
AlgoSec logo
AlgoSec
Computer and Network Security
United States, New Jersey, Ridgefield Park
$36M
$500M - $1B
571
AppViewX logo
AppViewX
Computer and Network Security
United States, New York, New York
$52M
$250M - $500M
560
Positive Technologies logo
Positive Technologies
Computer & Network Security
United Kingdom, England, London
$10B+
560
Group-IB logo
Group-IB
Computer and Network Security
Singapore, Central Region, Singapore
$938K
$1B - $10B
558
Palo Alto Networks Unit 42 logo
Palo Alto Networks Unit 42
Computer and Network Security
United States, California, Santa Clara
$250M - $500M
554
Illinois Department of Innovation & Technology (DoIT) logo
Illinois Department of Innovation & Technology (DoIT)
Computer and Network Security
United States, Illinois, Springfield
$100M - $250M
553
SITS Group logo
SITS Group
Computer and Network Security
Switzerland, Aargau, Wettingen
$100M - $250M
550
Aryaka logo
Aryaka
Computer and Network Security
United States, California, Santa Clara
$186M
$250M - $500M
546
Cloud Security Alliance logo
Cloud Security Alliance
Computer and Network Security
United States, Washington, Seattle
$250M - $500M
538
SSH Communications Security logo
SSH Communications Security
Computer and Network Security
Finland, Southwest Finland, Helsinki
$39M
$100M - $250M
534
Orca Security logo
Orca Security
Computer and Network Security
United States, Oregon, Portland
$632M
$500M - $1B
523
HUMAN logo
HUMAN
Computer and Network Security
United States, New York, New York
$301M
$250M - $500M
520
IANS logo
IANS
Computer and Network Security
United States, Massachusetts, Boston
$1B - $10B
519
Aujas Cybersecurity logo
Aujas Cybersecurity
Computer and Network Security
United States, California, Cupertino
$11M
$100M - $250M
516
NSFOCUS logo
NSFOCUS
Computer and Network Security
United States, California, Santa Clara
$1B - $10B
516
Lookout logo
Lookout
Computer and Network Security
United States, Massachusetts, Boston
$432M
$500M - $1B
513
Arete logo
Arete
Computer and Network Security
United States, Florida, Boca Raton
$100M - $250M
510
SecurityHQ logo
SecurityHQ
Computer and Network Security
United Kingdom, England, London
$25M - $50M
510
Menlo Security Inc. logo
Menlo Security Inc.
Computer and Network Security
United States, California, Mountain View
$251M
$500M - $1B
509
Upwind Security logo
Upwind Security
Computer and Network Security
United States, California, San Francisco
$430M
$1B - $10B
509
Center for Internet Security logo
Center for Internet Security
Computer and Network Security
United States, New York, East Greenbush
$250M - $500M
508
County of Sacramento logo
County of Sacramento
Computer and Network Security
United States, California, Sacramento
$250M - $500M
507
Tufin logo
Tufin
Computer and Network Security
United States, Massachusetts, Boston
$23M
$500M - $1B
506
GlobalSign logo
GlobalSign
Computer and Network Security
United States, New Hampshire, Portsmouth
$250M - $500M
505
Veracode logo
Veracode
Computer and Network Security
United States, Massachusetts, Burlington
$114M
$500M - $1B
505
CPX logo
CPX
Computer and Network Security
United Arab Emirates, Abū Z̧aby, Abu Dhabi
$25M - $50M
504
Authentify, Inc. logo
Authentify, Inc.
Computer & Network Security
United States, Illinois, Chicago
$3.5M
$1M - $10M
501
Crowdstrike Inc logo
Crowdstrike Inc
Computer & Network Security
United States, Utah, Draper
$1M - $10M
501
Excivity, Inc. logo
Excivity, Inc.
Computer & Network Security
United States, Virginia, Chantilly
$1M - $10M
501
LogRhythm logo
LogRhythm
Computer and Network Security
United States, Colorado, Broomfield
$126M
$25M - $50M
501
Memorial Hermann Hospital logo
Memorial Hermann Hospital
Computer and Network Security
United States, Texas, Spring
$250M - $500M
501
NICE Actimize Xceed logo
NICE Actimize Xceed
Computer and Network Security
United States, New Jersey, Hoboken
$44M
$1M - $10M
501
ReliaQuest Threat Research logo
ReliaQuest Threat Research
Computer and Network Security
United States, Florida, Tampa
$58M
$1M - $10M
501
Tenable Network Security - APAC logo
Tenable Network Security - APAC
Computer & Network Security
United States, Maryland, Columbia
501
Devo logo
Devo
Computer and Network Security
United States, Massachusetts, Boston
$481M
$100M - $250M
499
Horizon3.ai logo
Horizon3.ai
Computer and Network Security
United States, California, San Francisco
$179M
$1B - $10B
498
mnemonic logo
mnemonic
Computer and Network Security
Norway, Oslo, Oslo
$25M - $50M
496
Sapphire logo
Sapphire
Computer and Network Security
United Kingdom, England, Newcastle Upon Tyne
$25M - $50M
490
VIVOTEK logo
VIVOTEK
Computer and Network Security
Taiwan, New Taipei City, Zhonghe
$50M - $100M
490
Corelight logo
Corelight
Computer and Network Security
United States, California, San Francisco
$309M
$500M - $1B
483
Aqua Security logo
Aqua Security
Computer and Network Security
United States, Massachusetts, Burlington
$325M
$500M - $1B
471
BioCatch logo
BioCatch
Computer and Network Security
United States, New York, New York
$324M
$500M - $1B
470
Expel logo
Expel
Computer and Network Security
United States, Virginia, Herndon
$289M
$500M - $1B
468
Pentera logo
Pentera
Computer and Network Security
United States, Massachusetts, Burlington
$250M
$500M - $1B
466
Torq logo
Torq
Computer and Network Security
United States, New York, New York
$330M
$500M - $1B
465
NIKSUN logo
NIKSUN
Computer and Network Security
United States, New Jersey, Princeton
$27M
$100M - $250M
454
XM Cyber logo
XM Cyber
Computer and Network Security
Israel, Tel Aviv, Tel Aviv-yafo
$49M
$100M - $250M
452
Cybereason, A LevelBlue Company logo
Cybereason, A LevelBlue Company
Computer and Network Security
United States, California, la Jolla
$971M
$250M - $500M
451
Duo Security logo
Duo Security
Computer and Network Security
United States, Michigan, Ann Arbor
$122M
$250M - $500M
450
Halcyon logo
Halcyon
Computer and Network Security
United States, California, San Diego
$190M
$500M - $1B
450
CyberProof logo
CyberProof
Computer and Network Security
United States, California, Aliso Viejo
$50M - $100M
446
The Cybersecurity Agency logo
The Cybersecurity Agency
Computer and Network Security
United Kingdom, England, London
$100M - $250M
442
Stormshield logo
Stormshield
Computer and Network Security
France, Île-de-France, Issy-les-moulineaux
$10M - $25M
433
CREST logo
CREST
Computer and Network Security
United Kingdom, England, London
$10M - $25M
430
Open Systems logo
Open Systems
Computer and Network Security
Switzerland, Zurich, Zürich
$1M
$50M - $100M
430
Cyber Security Forum Initiative logo
Cyber Security Forum Initiative
Computer and Network Security
United States, Nebraska, Omaha
$100M - $250M
411
BCD logo
BCD
Computer and Network Security
United States, Illinois, Vernon Hills
$100M - $250M
407
Guidance Software logo
Guidance Software
Computer and Network Security
United States, California, Pasadena
$7.5M
$500M - $1B
400
SilverSky logo
SilverSky
Computer and Network Security
United States, North Carolina, Morrisville
$140M
$250M - $500M
399

About Computer and Network Security companies

Which Computer and Network Security companies are listed?

Computer and Network Security companies of every size, from enterprises to startups, sorted by headcount so the biggest accounts come first. Companies on the list include S2GRUPO, Netwrix Corporation and YesWeHack. Every company profile gives you revenue range, headcount, headquarters, tech stack and an employee directory with verified emails and phone numbers.

Where are Computer and Network Security companies located?

Computer and Network Security companies are most often headquartered in the United States, the United Kingdom, Israel, Canada, France and Germany.

What technologies do Computer and Network Security companies use?

The tools most often found in the tech stacks of Computer and Network Security companies include WordPress, Amazon Web Services, Microsoft 365, Google Cloud, HubSpot and LinkedIn Ads. Useful if you integrate with, complement or compete with one of them.

How do I reach decision makers at Computer and Network Security companies?

Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.

Insights based on LeadIQ data refreshed in September 2026.

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