Cybersecurity companies in Estonia
4 companies in the directory are based in Estonia. All 4 are vendors.
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.
4 companies, largest first
| Company | Category | Size | Ownership |
|---|---|---|---|
 RansomLeak RansomLeak sells security awareness training and human risk management software. | Security awareness and human risk | 5 staff | Private |
C CybExer Technologies CybExer Technologies provides cyber range platforms for testing and training. | OT and ICS security | Private | |
 HackenProof HackenProof runs a bug bounty and crowdsourced audit platform for blockchain and crypto projects. | Bug bounty and crowdsourced testing | Private | |
 VeloGuardian VeloGuardian provides a WireGuard-based VPN with DNS filtering and gateway appliances for homes and small businesses. | DNS security | Private |