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List of Computer and Network Security Companies

Selling into Computer and Network Security? Here are its companies, biggest first, including Cyble, Arbor Networks, now part of NETSCOUT and Vehere. Open a company to see its revenue range, headcount, tech stack and the people to contact.

Company NameIndustryLocationFundingRevenueEmployees
Cyble logo
Cyble
Computer and Network Security
United States, California, Cupertino
$45M
$50M - $100M
230
Arbor Networks, now part of NETSCOUT logo
Arbor Networks, now part of NETSCOUT
Computer and Network Security
United States, Massachusetts, Burlington
$1B - $10B
226
Vehere logo
Vehere
Computer and Network Security
United States, California, San Francisco
$50M - $100M
225
DataDome logo
DataDome
Computer and Network Security
United States, New York, New York
$81M
$100M - $250M
224
Fortress Information Security logo
Fortress Information Security
Computer and Network Security
United States, Florida, Orlando
$160M
$100M - $250M
223
Cymulate logo
Cymulate
Computer and Network Security
United States, New York, New York
$250M - $500M
222
CyberMaxx logo
CyberMaxx
Computer and Network Security
United States, Maryland, Linthicum
$100M - $250M
220
PentenAmio logo
PentenAmio
Computer and Network Security
United Kingdom, England, Tewkesbury
$1M - $10M
219
Fortanix logo
Fortanix
Computer and Network Security
United States, California, Santa Clara
$135M
$100M - $250M
216
Cyware logo
Cyware
Computer and Network Security
United States, New Jersey, Jersey City
$73M
$50M - $100M
214
Electrosoft logo
Electrosoft
Computer and Network Security
United States, Virginia, Reston
$50M - $100M
214
Sentra logo
Sentra
Computer and Network Security
United States, New York
$103M
$250M - $500M
211
Lumifi logo
Lumifi
Computer and Network Security
United States, Arizona, Scottsdale
$100M - $250M
210
OX Security logo
OX Security
Computer and Network Security
United States, New York, New York
$94M
$100M - $250M
209
Blue Coat Systems acquired by Symantec logo
Blue Coat Systems acquired by Symantec
Computer and Network Security
United States, California, Sunnyvale
$8.7M
$1B - $10B
208
Fidelis Security logo
Fidelis Security
Computer and Network Security
United States, California, Riverside
$49M
$250M - $500M
207
Salt Security logo
Salt Security
Computer and Network Security
United States, California, Palo Alto
$271M
$100M - $250M
207
NetWitness logo
NetWitness
Computer and Network Security
United States, Massachusetts, Boston
$16M
$100M - $250M
206
Kratikal logo
Kratikal
Computer and Network Security
India, Uttar Pradesh, Noida Sector 16
$1M
$10M - $25M
205
Ampcus Cyber logo
Ampcus Cyber
Computer and Network Security
United States, Virginia, Chantilly
$50M - $100M
204
Armor Defense logo
Armor Defense
Computer and Network Security
United States, Texas, Plano
$149M
$100M - $250M
202
ATS Technical Services Group logo
ATS Technical Services Group
Computer & Network Security
United States, Texas, Dallas
$1M - $10M
201
Adarma Security logo
Adarma Security
Computer and Network Security
United Kingdom, Scotland, Edinburgh
$2.3M
$1M - $10M
201
AlienVault logo
AlienVault
Computer and Network Security
United States, California, San Mateo
$1M - $10M
201
Blackpoint Cyber logo
Blackpoint Cyber
Computer and Network Security
United States, Colorado, Denver
$201M
$100M - $250M
201
Clearswift logo
Clearswift
Computer and Network Security
United Kingdom, England, Theale
$50M - $100M
201
Context Information Security logo
Context Information Security
Computer & Network Security
United Kingdom, England, London
$1M - $10M
201
Crossbeam Systems logo
Crossbeam Systems
Computer & Network Security
United States, Massachusetts, Boxborough
$10M - $25M
201
Defense Point Security, LLC logo
Defense Point Security, LLC
Computer & Network Security
United States, Virginia, Reston
$1M - $10M
201
ESCRYPT logo
ESCRYPT
Computer & Network Security
Germany, North Rhine-Westphalia, Bochum
$1M - $10M
201
Insight Assurance logo
Insight Assurance
Computer and Network Security
United States, Florida, Tampa
$50M - $100M
201
Netsurion logo
Netsurion
Computer and Network Security
United States, Florida, Fort Lauderdale
$1M - $10M
201
OMG Tech Help Inc. logo
OMG Tech Help Inc.
Computer & Network Security
United States, Florida, Delray Beach
$100M - $250M
201
Perspective Risk logo
Perspective Risk
Computer and Network Security
United Kingdom, England, London
<$1M
201
Pomeroy It Solutions logo
Pomeroy It Solutions
Computer & Network Security
United States, North Carolina, Raleigh
$10M - $25M
201
Skyhigh Networks logo
Skyhigh Networks
Computer & Network Security
United States, California, Campbell
$107M
$25M - $50M
201
Swiss IT Security Deutschland GmbH logo
Swiss IT Security Deutschland GmbH
Computer and Network Security
Germany, Hesse, Wiesbaden
$1M - $10M
201
Trusteer (IBM Security) logo
Trusteer (IBM Security)
Computer & Network Security
United States, Massachusetts, Boston
$10M
$25M - $50M
201
GitGuardian logo
GitGuardian
Computer and Network Security
France, Île-de-France, Paris
$106M
$100M - $250M
200
Path Forward IT logo
Path Forward IT
Computer and Network Security
United States, Ohio, Cincinnati
$50M - $100M
200
Ixia logo
Ixia
Computer and Network Security
United States, California, Santa Clara
$10M - $25M
199
Logiq logo
Logiq
Computer and Network Security
United Kingdom, England, Bristol
$10M - $25M
197
Flare logo
Flare
Computer and Network Security
Canada, Quebec, Montreal
$71M
$50M - $100M
196
Axis, acquired by Hewlett Packard Enterprise company in 2023 logo
Axis, acquired by Hewlett Packard Enterprise company in 2023
Computer and Network Security
United States, Texas, Houston
$100M
$25M - $50M
195
PCI Security Standards Council logo
PCI Security Standards Council
Computer and Network Security
United States, Massachusetts, Wakefield
$25M - $50M
195
AccuKnox logo
AccuKnox
Computer and Network Security
United States, California, Menlo Park
$15M
$50M - $100M
194
Lepide logo
Lepide
Computer and Network Security
United Kingdom, England, Rother District
$1B - $10B
193
AttackIQ logo
AttackIQ
Computer and Network Security
United States, California, Los Altos
$76M
$100M - $250M
192
SimSpace logo
SimSpace
Computer and Network Security
United States, Massachusetts, Boston
$84M
$100M - $250M
192
Yogosha logo
Yogosha
Computer and Network Security
France, Île-de-France, Paris
$15M
$500M - $1B
192
AUTOCRYPT logo
AUTOCRYPT
Computer and Network Security
South Korea, 서울특별시, 영등포구
$56M
$100M - $250M
190
CERT Division at the Software Engineering Institute logo
CERT Division at the Software Engineering Institute
Computer and Network Security
United States, Pennsylvania, Pittsburgh
$250M - $500M
189
Futurex logo
Futurex
Computer and Network Security
United States, Texas, Bulverde
$50M - $100M
189
Censys logo
Censys
Computer and Network Security
United States, Michigan, Ann Arbor
$198M
$250M - $500M
187
Hunters logo
Hunters
Computer and Network Security
Israel, Tel Aviv, Miqwe Yisra’el
$118M
$50M - $100M
187
MindPoint Group, A Quantum Sky Company logo
MindPoint Group, A Quantum Sky Company
Computer and Network Security
United States, Virginia, Reston
$100M - $250M
187
CYBER1 Solutions - South Africa logo
CYBER1 Solutions - South Africa
Computer and Network Security
South Africa, Gauteng, Johannesburg
$50M - $100M
186
Lumu Technologies logo
Lumu Technologies
Computer and Network Security
United States, Florida, Doral
$62M
$100M - $250M
186
PROFICIO logo
PROFICIO
Computer and Network Security
United States, California, Irvine
$13M
$100M - $250M
186
Binary Defense logo
Binary Defense
Computer and Network Security
United States, Ohio, Stow
$36M
$100M - $250M
185
Cisco Talos logo
Cisco Talos
Computer and Network Security
United States, Maryland, Fulton
$100M - $250M
184
Structured Communication Systems logo
Structured Communication Systems
Computer and Network Security
United States, Oregon, Clackamas
$500M - $1B
184
Thales Cyber Solutions Luxembourg logo
Thales Cyber Solutions Luxembourg
Computer and Network Security
Luxembourg, Luxembourg, Contern
<$1M
183
RPost logo
RPost
Computer and Network Security
United States, California, Los Angeles
$5.8M
$50M - $100M
182
Whalebone logo
Whalebone
Computer and Network Security
Czech Republic, South Moravian, Veveří
$18M
$1B - $10B
182
Appdome logo
Appdome
Computer and Network Security
United States, California, Redwood City
$28M
$100M - $250M
181
Chitra logo
Chitra
Computer and Network Security
United States, Virginia, Virginia Beach
$25M - $50M
180
SecPod logo
SecPod
Computer and Network Security
United States, California, Redwood City
$50M - $100M
180
Security Innovation logo
Security Innovation
Computer and Network Security
United States, Massachusetts, Wilmington
$13M
$100M - $250M
180
Information Systems Security Association (ISSA) logo
Information Systems Security Association (ISSA)
Computer and Network Security
United States, Texas, Houston
$50M - $100M
179
Netsecurity logo
Netsecurity
Computer and Network Security
Norway, Oslo, Oslo
$10M - $25M
179
IRONSCALES logo
IRONSCALES
Computer and Network Security
United States, Georgia, Atlanta
$121M
$50M - $100M
178
STid logo
STid
Computer and Network Security
France, Provence-Alpes-Côte d'Azur, Gréasque
$21M
$100M - $250M
178
Fortra's Digital Guardian logo
Fortra's Digital Guardian
Computer and Network Security
United States, Minnesota, Eden Prairie
$173M
$100M - $250M
176
Fraunhofer Institute for Secure Information Technology SIT logo
Fraunhofer Institute for Secure Information Technology SIT
Computer and Network Security
Germany, Hesse, Darmstadt
$1M - $10M
176
Indusface logo
Indusface
Computer and Network Security
India, Gujarat, Akota
$5M
$10M - $25M
176
Intercede logo
Intercede
Computer and Network Security
United Kingdom, England, Lutterworth
$25M - $50M
176
Seceon Inc. logo
Seceon Inc.
Computer and Network Security
United States, Massachusetts, Westford
$100M - $250M
176
Otsego County logo
Otsego County
Computer and Network Security
United States, Michigan, Gaylord
$25M - $50M
175
Secude logo
Secude
Computer and Network Security
Switzerland, Lucerne, Lucerne
$11M
$1M - $10M
175
Beazley Security logo
Beazley Security
Computer and Network Security
United States, Connecticut, Hartford
$50M - $100M
174
Seqrite logo
Seqrite
Computer and Network Security
India, Maharashtra, Viman Nagar
$25M - $50M
174
HiddenLayer logo
HiddenLayer
Computer and Network Security
United States, Texas, Austin
$107M
$100M - $250M
173
QNu Labs logo
QNu Labs
Computer and Network Security
India, Karnataka, Bangalore
$14M
$1M - $10M
173
TCB | 24/7 EXPERT IT Support logo
TCB | 24/7 EXPERT IT Support
Computer and Network Security
United States, Virginia, Chantilly
$1M - $10M
172
Cyberint, a Check Point Company logo
Cyberint, a Check Point Company
Computer and Network Security
Israel, Tel Aviv, Tel Aviv-yafo
$68M
$1B - $10B
171
GRC Solutions logo
GRC Solutions
Computer and Network Security
United Kingdom, England, Ely
$25M - $50M
171
DeepSeas logo
DeepSeas
Computer and Network Security
United States
$100M - $250M
170
OpenVPN Inc. logo
OpenVPN Inc.
Computer and Network Security
United States, California, Pleasanton
$50M - $100M
170
Venafi, a CyberArk Company logo
Venafi, a CyberArk Company
Computer and Network Security
United States, Utah, Salt Lake City
$170M
$250M - $500M
170
Xcitium logo
Xcitium
Computer and Network Security
United States, Remote
$250M - $500M
169
Black Kite logo
Black Kite
Computer and Network Security
United States, Massachusetts, Boston
$36M
$500M - $1B
168
GoSecure logo
GoSecure
Computer and Network Security
United States, California, la Jolla
$141M
$50M - $100M
167
Oigetit Real-Time AI Intelligence Platform logo
Oigetit Real-Time AI Intelligence Platform
Computer and Network Security
United States, California, Menlo Park
$50M - $100M
167
Wallarm logo
Wallarm
Computer and Network Security
United States, Texas, Austin
$105M
$500M - $1B
167
Upstream Security logo
Upstream Security
Computer and Network Security
Israel, Tel Aviv, Herẕliyya
$105M
$100M - $250M
166
FishNet Security logo
FishNet Security
Computer and Network Security
United States, Kansas, Overland Park
$12M
$250M - $500M
165
Sekoia logo
Sekoia
Computer and Network Security
France, Bretagne, Rennes
$78M
$1M - $10M
165
Visual Connections (SDVOSB) logo
Visual Connections (SDVOSB)
Computer and Network Security
United States, Maryland, Columbia
$10M - $25M
165
Alert Logic logo
Alert Logic
Computer and Network Security
United States, Minnesota, Eden Prairie
$387M
$100M - $250M
163

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 Cyble, Arbor Networks, now part of NETSCOUT and Vehere. 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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