Cybersecurity vendors and service firms directory
A curated list of cybersecurity vendors and companies, with where they are based and who owns them.
860 companies
738 vendors
122 service firms
53 countries
Latest cybersecurity companies and deals
Newly listed cybersecurity companies
All companiesManaged detection and response
Firewalls
DDoS protection
OT and ICS security
MFA and passwordless authentication
Fraud and payment fraud prevention
SIEM
Security consulting and vCISO
Latest cybersecurity deals
All deals- Upwind Security raised a Series C round
$400m
- Indurex raised funding
- Proofpoint bought Varonis
$6.3bn
- Proofpoint bought Varonis
$6.3bn
- Harmonic Security raised a Series B round
$50m
- IonQ bought Elisity
$1.3bn
- Rein Security raised a Series A round
$25m
- Hilt raised a seed round
$4.2m
Cybersecurity companies by category
Filter all 860 companiesIdentity & Access
- Identity and access management78 companies
- Privileged access management24 companies
- Identity governance and administration32 companies
- Customer identity16 companies
- MFA and passwordless authentication49 companies
- Password managers14 companies
- Secrets management29 companies
- Identity threat detection and response58 companies
Cloud Security
Network Security
Endpoint Security
Security Operations
Application Security
Data Security
Email Security
Threat Intelligence
AI Security
Security Data Pipelines
Governance, Risk & Compliance
OT & ICS Security
Security Services & MSSPs
Biggest cybersecurity companies by revenue
All public companies| # | Company | Category | Revenue | Ownership |
|---|---|---|---|---|
| 1 |  Microsoft Microsoft sells software, cloud services, hardware, and gaming products. | Identity and access management | $331.8bn (FY2026) | Public, MSFT |
| 2 |  Palo Alto Networks Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats. | Firewalls | $11.5bn (FY2026) | Public, PANW |
| 3 |  Fortinet Fortinet provides cybersecurity solutions and services, including networking and security convergence, for enterprises and governments. | Firewalls | $6.8bn (FY2025) | Public, FTNT |
| 4 |  Keysight Technologies Test equipment maker whose device security lab, built on Riscure, tests chips, cards and vehicle electronics against side-channel and fault-injection attacks. | IoT, embedded and product security | $5.4bn (FY2025) | Public, KEYS |
| 5 |  Open Text Corporation OpenText provides software and services for managing information across an organisation. | Backup and cyber recovery | $5.2bn (FY2026) | Public, OTEX |
| 6 |  CrowdStrike CrowdStrike provides AI-native cybersecurity solutions to stop breaches. | EDR and XDR | $4.8bn (FY2026) | Public, CRWD |
| 7 |  Zscaler Zscaler provides a cloud-native zero trust cybersecurity platform that securely connects users, devices, and applications. | SASE and SSE | $3.4bn (FY2026) | Public, ZS |
| 8 |  F5 F5 provides application delivery and security solutions for hybrid multicloud environments. | WAF and bot protection | $3.1bn (FY2025) | Public, FFIV |
| 9 |  UL Solutions Global testing and certification firm, recognised by the PCI SSC for PTS POI and HSM evaluation, with labs in the UK and China. | Compliance audits (SOC 2, ISO 27001) | $3.1bn (FY2025) | Public, ULS |
| 10 |  Okta Okta provides cloud-based identity and access management solutions for workforce and customer identities. | Identity and access management | $2.9bn (FY2026) | Public, OKTA |
Who owns cybersecurity companies
All ownersOwns Black Duck, Forcepoint, Jamf and 4 more
Owns NetSPI, Barracuda Networks and Optiv
Owns Thales Cyber Solutions, Imperva and Safenet
Owns Airbus Protect and Quarkslab