LeadIQ logo
Learn more at LeadIQ.com

List of Computer and Network Security Companies

Selling into Computer and Network Security? Here are its companies, biggest first, including G DATA CyberDefense, THC and K7 Computing. Open a company to see its revenue range, headcount, tech stack and the people to contact.

Company NameIndustryLocationFundingRevenueEmployees
G DATA CyberDefense logo
G DATA CyberDefense
Computer and Network Security
Germany, North Rhine-Westphalia, Bochum
$50M - $100M
398
THC logo
THC
Computer and Network Security
Malta, Birkirkara
$250M - $500M
397
K7 Computing logo
K7 Computing
Computer and Network Security
India, Tamil Nadu, Chennai
$50M - $100M
396
Paladion an Atos business logo
Paladion an Atos business
Computer and Network Security
United States, Virginia, Reston
$10M
$50M - $100M
392
Nozomi Networks logo
Nozomi Networks
Computer and Network Security
United States, California, San Francisco
$266M
$500M - $1B
391
Panda Security logo
Panda Security
Computer and Network Security
Spain, Galicia, Santiago de Compostela
$14M
$100M - $250M
390
Clearwater logo
Clearwater
Computer and Network Security
United States, Tennessee, Nashville
$250M - $500M
382
Bishop Fox logo
Bishop Fox
Computer and Network Security
United States, Arizona, Tempe
$146M
$250M - $500M
381
Bridewell logo
Bridewell
Computer and Network Security
United Kingdom, England, Reading
$25M - $50M
380
Double Tree Hotel logo
Double Tree Hotel
Computer and Network Security
United States, Texas, Austin
$50M - $100M
380
Noname Security logo
Noname Security
Computer and Network Security
United States, California, San Jose
$220M
$100M - $250M
379
Intelligent Technical Solutions logo
Intelligent Technical Solutions
Computer and Network Security
United States, Nevada, Las Vegas
$100M - $250M
369
Hillstone Networks logo
Hillstone Networks
Computer and Network Security
United States, California, Santa Clara
$1B - $10B
367
AppGate logo
AppGate
Computer and Network Security
United States, Florida, Coral Gables
$250M - $500M
366
SEQURETEK logo
SEQURETEK
Computer and Network Security
India, Maharashtra, Marol Naka
$50M - $100M
361
Security Risk Advisors logo
Security Risk Advisors
Computer and Network Security
United States, Pennsylvania, Philadelphia
$250M - $500M
357
Tempest Security Intelligence logo
Tempest Security Intelligence
Computer and Network Security
Brazil, Pernambuco, Recife
$1M - $10M
356
Dream logo
Dream
Computer and Network Security
Israel, Tel Aviv
$199M
$100M - $250M
355
Pindrop logo
Pindrop
Computer and Network Security
United States, Georgia, Atlanta
$323M
$500M - $1B
353
iboss logo
iboss
Computer and Network Security
United States, Massachusetts, Boston
$180M
$1B - $10B
353
NVISO Security logo
NVISO Security
Computer and Network Security
Belgium, Brussels, Etterbeek
$10M - $25M
349
Accops logo
Accops
Computer and Network Security
India, Maharashtra, Baner
$25M - $50M
348
European Union Agency for Cybersecurity (ENISA) logo
European Union Agency for Cybersecurity (ENISA)
Computer and Network Security
Greece, Attikí, Athens
$50M - $100M
345
Onapsis logo
Onapsis
Computer and Network Security
United States, Massachusetts, Boston
$116M
$100M - $250M
344
GM Sectec logo
GM Sectec
Computer and Network Security
United States, Texas, San Juan
$25M - $50M
342
TRUNO, Retail Technology Solutions logo
TRUNO, Retail Technology Solutions
Computer and Network Security
United States, Texas, Lubbock
$40M
$250M - $500M
339
Cynet Security logo
Cynet Security
Computer and Network Security
United States, Massachusetts, Boston
$78M
$250M - $500M
338
Immersive logo
Immersive
Computer and Network Security
United Kingdom, England, Bristol
$190M
$250M - $500M
333
Invicti logo
Invicti
Computer and Network Security
United States, Texas, Austin
$250M - $500M
330
Telsy logo
Telsy
Computer and Network Security
Italy, Piemonte, Torino
$1M - $10M
330
Red Canary, a Zscaler company logo
Red Canary, a Zscaler company
Computer and Network Security
United States, Colorado, Denver
$130M
$500M - $1B
325
ReversingLabs logo
ReversingLabs
Computer and Network Security
United States, Massachusetts, Cambridge
$81M
$250M - $500M
322
genua gmbh logo
genua gmbh
Computer and Network Security
Germany, Bavaria, Kirchheim Bei München
$50M - $100M
320
Sublime Security logo
Sublime Security
Computer and Network Security
United States, District of Columbia, Washington
$240M
$500M - $1B
318
Picus Security logo
Picus Security
Computer and Network Security
United States, California, San Francisco
$78M
$1B - $10B
316
Gurucul logo
Gurucul
Computer and Network Security
United States, California, el Segundo
$100M - $250M
315
Nomios France logo
Nomios France
Computer and Network Security
France, Île-de-France, Boulogne-billancourt
$1M - $10M
314
Thales Cybersecurity Services – Spain/Portugal logo
Thales Cybersecurity Services – Spain/Portugal
Computer and Network Security
Spain, Community of Madrid, Humanes de Madrid
$10M - $25M
314
Prescient Security logo
Prescient Security
Computer and Network Security
United States, Tennessee, Nashville
$100M - $250M
312
Cyberhaven logo
Cyberhaven
Computer and Network Security
United States, California, Palo Alto
$237M
$500M - $1B
310
RAH Infotech logo
RAH Infotech
Computer and Network Security
India, Haryana, Gurgaon South City ii
$25M - $50M
309
Anomali logo
Anomali
Computer and Network Security
United States, California, Redwood City
$96M
$250M - $500M
307
Dashlane logo
Dashlane
Computer and Network Security
United States, New York, New York
$211M
$250M - $500M
306
Any Key Computer Services logo
Any Key Computer Services
Computer and Network Security
United States, Illinois, Fox Lake
$10M - $25M
304
NeoSecure by SEK logo
NeoSecure by SEK
Computer and Network Security
Argentina, Buenos Aires, Buenos Aires
$1B - $10B
303
CyberSecurity Malaysia logo
CyberSecurity Malaysia
Computer and Network Security
Malaysia, Selangor, Cyberjaya
$50M - $100M
301
CyberSolve logo
CyberSolve
Computer and Network Security
United States, Virginia, Sterling
$50M - $100M
301
GBB logo
GBB
Computer and Network Security
India
$10M - $25M
297
Cyberwise logo
Cyberwise
Computer and Network Security
Turkey, Istanbul, Kozyataği
$500M - $1B
294
Resilience logo
Resilience
Computer and Network Security
United States, New York, New York
$217M
$100M - $250M
294
Barikat Cybersecurity logo
Barikat Cybersecurity
Computer and Network Security
Turkey, Ankara, Çankaya
$5M
$1B - $10B
290
Quorum Cyber logo
Quorum Cyber
Computer and Network Security
United Kingdom, Scotland, Edinburgh
$3.4M
$25M - $50M
290
Infinigate Deutschland logo
Infinigate Deutschland
Computer and Network Security
Germany, Bavaria, Haar
$100M - $250M
289
Hoxhunt logo
Hoxhunt
Computer and Network Security
Finland, Southwest Finland, Helsinki
$43M
$500M - $1B
288
SpecterOps logo
SpecterOps
Computer and Network Security
United States, Virginia, Alexandria
$142M
$250M - $500M
288
Fox-IT logo
Fox-IT
Computer and Network Security
Netherlands, South Holland, Rijswijk
$1M - $10M
286
Zimperium logo
Zimperium
Computer and Network Security
United States, Texas, Dallas
$72M
$250M - $500M
286
DataProtect logo
DataProtect
Computer and Network Security
Morocco, Casablanca-Settat, Sidi Ma’rouf
$10M - $25M
285
Outpost24 logo
Outpost24
Computer and Network Security
Sweden, Blekinge, Karlskrona
$24M
$50M - $100M
285
SecurityMetrics logo
SecurityMetrics
Computer and Network Security
United States, Utah, Orem
$250M - $500M
285
COFENSE logo
COFENSE
Computer and Network Security
United States, Virginia, Ashburn
$58M
$100M - $250M
283
Infopercept logo
Infopercept
Computer and Network Security
India, Gujarat, Ahmedabad
$10M - $25M
283
Wazuh logo
Wazuh
Computer and Network Security
United States, California, Campbell
$1M - $10M
282
Heimdal® logo
Heimdal®
Computer and Network Security
Denmark, Hovedstaden, Copenhagen
$10M - $25M
280
SpyCloud logo
SpyCloud
Computer and Network Security
United States, Texas, Austin
$204M
$250M - $500M
280
Callsign logo
Callsign
Computer and Network Security
United Kingdom, England, London
$39M
$25M - $50M
278
Sift logo
Sift
Computer and Network Security
United States, California, San Francisco
$157M
$250M - $500M
278
Coro logo
Coro
Computer and Network Security
United States, Illinois, Chicago
$255M
$100M - $250M
277
Critical Start logo
Critical Start
Computer and Network Security
United States, Texas, Plano
$255M
$100M - $250M
275
EfficientIP logo
EfficientIP
Computer and Network Security
France, Île-de-France, la Garenne-colombes
$11M
$100M - $250M
272
Eye Security logo
Eye Security
Computer and Network Security
Netherlands, South Holland, The Hague
$62M
$10M - $25M
272
SOS Security logo
SOS Security
Computer and Network Security
United States, Texas, Houston
$100M - $250M
271
Swimlane logo
Swimlane
Computer and Network Security
United States, Colorado, Denver
$200M
$100M - $250M
270
Sygnia logo
Sygnia
Computer and Network Security
Israel, Tel Aviv, Miqwe Yisra’el
$50M - $100M
270
TXOne Networks logo
TXOne Networks
Computer and Network Security
Taiwan, Taipei City
$145M
$100M - $250M
268
FireMon logo
FireMon
Computer and Network Security
United States, Kansas, Overland Park
$40M
$250M - $500M
266
Array Networks logo
Array Networks
Computer and Network Security
United States, California, Milpitas
$58M
$250M - $500M
263
CHEQ logo
CHEQ
Computer and Network Security
United States, New York, New York
$182M
$250M - $500M
263
Owl Cyber Defense logo
Owl Cyber Defense
Computer and Network Security
United States, Maryland, Columbia
$100M - $250M
263
Panther logo
Panther
Computer and Network Security
United States, California, San Francisco
$141M
$250M - $500M
263
Obsidian Security logo
Obsidian Security
Computer and Network Security
United States, California, Palo Alto
$120M
$500M - $1B
260
Security Compass logo
Security Compass
Computer and Network Security
Canada, Ontario, Toronto
$100M - $250M
254
Sekuro logo
Sekuro
Computer and Network Security
Australia, New South Wales, Haymarket
$50M - $100M
253
Nomios Netherlands logo
Nomios Netherlands
Computer and Network Security
Netherlands, South Holland, Zoeterwoude
$25M - $50M
252
AnyTech365 logo
AnyTech365
Computer and Network Security
Spain, Andalusia, Malaga
$100M - $250M
251
Riot logo
Riot
Computer and Network Security
United States, California, San Francisco
$72M
$25M - $50M
249
Arkose Labs logo
Arkose Labs
Computer and Network Security
United States, California, San Mateo
$106M
$100M - $250M
247
Comsec logo
Comsec
Computer and Network Security
Israel, Tel Aviv, Tel Aviv-yafo
$250M - $500M
247
IQSEC logo
IQSEC
Computer and Network Security
Mexico, Durango, San Pedro de Los Pinos
$1M - $10M
246
Synack logo
Synack
Computer and Network Security
United States, California, Redwood City
$108M
$250M - $500M
244
Webroot logo
Webroot
Computer and Network Security
United States, Colorado, Broomfield
$109M
$500M - $1B
244
Securin Inc. logo
Securin Inc.
Computer and Network Security
United States, New Mexico, Albuquerque
$25M - $50M
242
certSIGN logo
certSIGN
Computer and Network Security
Romania, București, Sector 5
<$1M
241
Carbon Black logo
Carbon Black
Computer and Network Security
United States, California, Palo Alto
$1B - $10B
240
ETEK logo
ETEK
Computer and Network Security
United States, North Carolina, Charlotte
$25M - $50M
239
Northwave Cyber Security logo
Northwave Cyber Security
Computer and Network Security
Netherlands, Utrecht, Utrecht
$1M - $10M
239
Toyota Tsusho Systems US, Inc. logo
Toyota Tsusho Systems US, Inc.
Computer and Network Security
United States, Texas, Plano
$100M - $250M
238
CENSUS logo
CENSUS
Computer and Network Security
Greece, Attikí, Athens
$10M - $25M
237
Deepwatch logo
Deepwatch
Computer and Network Security
United States, California, Palo Alto
$256M
$100M - $250M
232
Intrinsec logo
Intrinsec
Computer and Network Security
France, Île-de-France, Courbevoie
$1M - $10M
232

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 G DATA CyberDefense, THC and K7 Computing. 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.

Search by Industry

ConstructionIT Services and IT ConsultingSoftware DevelopmentFinancial ServicesReal EstateHospitals and Health CareAdvertising ServicesNon-profit OrganizationsInsuranceLaw PracticeRetailWellness and Fitness ServicesBusiness Consulting and ServicesEducation Administration ProgramsMotor Vehicle ManufacturingTechnology, Information and InternetFood and Beverage ServicesStaffing and RecruitingAccountingOil and GasHospitalityAppliances, Electrical, and Electronics ManufacturingManufacturingArchitecture and PlanningMachinery Manufacturing

Search by Country

United StatesUnited KingdomCanadaGermanyAustraliaFranceNetherlandsIndiaSpainSwitzerlandItalySwedenBrazilBelgiumSingaporeIrelandUnited Arab EmiratesDenmarkSouth AfricaIsraelNew ZealandNorwayFinland

Search by Technology

Microsoft 365WordPressAmazon Web ServicesGoogle CloudGoogle WorkspaceShopifyHubSpotiCIMSPiwik PROAdobe Creative CloudLinkedIn AdsMicrosoft AdvertisingMicrosoft AzureGoogle AdsSalesforceHotjarWP EngineAutodeskWooCommerceMailchimpSAPPower BIMatomoVMwareMicrosoft SharePoint

Top companies by employee count

Top companies in United States by employee countTop companies in United Kingdom by employee countTop companies in Canada by employee countTop companies in Germany by employee countTop companies in France by employee countTop companies in Australia by employee countTop companies in Netherlands by employee countTop companies in India by employee countTop companies in Spain by employee countTop companies in Switzerland by employee countTop companies in Sweden by employee countTop companies in Italy by employee countTop companies in Denmark by employee countTop companies in Brazil by employee countTop companies in Ireland by employee count

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.