Cybersecurity companies in Singapore
7 companies in the directory are based in Singapore. 6 are vendors and 1 is a service firm. Of these, 1 belongs to another company or an investor.
The list runs largest first. We rank by revenue from annual reports where a listed company files one, then by staff numbers. Companies with no revenue or staff figure come last.
7 companies, largest first
| Company | Category | Size | Ownership |
|---|---|---|---|
 Swarmnetics Singapore CREST-accredited and CSA-licensed offensive security boutique. Manual, senior-led testing with strong MAS TRM and PDPA expertise. | Penetration testing | 11-50 staff | Private |
 Cyber Intelligence House Provides dark web intelligence and cyber exposure monitoring to managed security service providers. | Threat intelligence | Private | |
 Group-IB Group-IB provides cybersecurity products and services to prevent digital crime. | Threat intelligence | Private | |
 Immunefi Immunefi runs bug bounty programmes and security services for cryptocurrency and smart contract projects. | Bug bounty and crowdsourced testing | Private | |
 Protos AI Protos AI provides managed adversary risk intelligence by collecting and analysing threat signals for organisations. | Threat intelligence | Owned by Protos Labs | |
 SecLens.ONE SecLens provides free email security assessments by checking seven DNS-based protocols and offering remediation advice. | DMARC and email authentication | Private | |
 Security Quotient Security Quotient provides cyber security, data privacy and AI governance training for regulated enterprises. | Security awareness and human risk | Private |