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Every funded startup we track whose live site sits on .security: what they build, how they name themselves, and who raised the most there recently.
Share of tracked .security rounds by vertical, over the rounds where a vertical resolved.
12 disclosed rounds on .security in that window, largest first.
| Company | Domain | Raised | Stage | Vertical | Announced |
|---|---|---|---|---|---|
| Onyx Security Onyx Security focuses on keeping humans in control of AI agents. | onyx.security | $113M | Series B | Cybersecurity | Aug 1, 2026 |
| Onyx AI security startup Onyx specializes in cybersecurity solutions. | onyx.security | $113M | Series B | Cybersecurity | Jul 29, 2026 |
| OLIGO OLIGO is a cybersecurity firm that has experienced significant revenue growth. | oligo.security | $60M | Series A | Cybersecurity | 🇮🇱Aug 4, 2026 |
| Oligo Security Oligo Security focuses on protecting applications from AI-driven attacks. | oligo.security | $60M | Series B | Cybersecurity | Aug 4, 2026 |
| Act Security Act Security launched a cloud security platform. | act.security | $60M | Series A | Cybersecurity | Jul 28, 2026 |
| Mate Security Mate Security offers an agentic security operations platform. | mate.security | $35M | Series A | Cybersecurity | Jul 28, 2026 |
| Hush Security Hush Security focuses on AI agent governance solutions. | hush.security | $30M | Series A | AI | Jul 28, 2026 |
| Abstract Security Abstract Security specializes in security data fabric and analytics. | abstract.security | $25M | Series A | Cybersecurity | 🇺🇸Jul 23, 2026 |
| Abstract Abstract provides composable security operations for enterprises. | abstract.security | $25M | Series A | Cybersecurity | Jul 23, 2026 |
| Bloom Security Bloom Security develops solutions for endpoint security challenges created by AI adoption. | bloom.security | $20M | Seed | Cybersecurity | 🇮🇱Aug 3, 2026 |
| Way Security Way Security tackles enterprise identity management challenges. | way.security | $20M | Seed | Cybersecurity | Jul 27, 2026 |
| Beacon Security Beacon Security builds the data layer powering AI cybersecurity agents. | beacon.security | $13M | Seed | Cybersecurity | 🇮🇱Jul 16, 2026 |
Naming archetypes among tracked .security startups. Median domain length here is 5 characters.
14 funded startups we track are on .security, and 100% of them hold the exact match of their own name. Atom lists hand-curated names across every extension, with appraisal and transfer handled.
Method. Rounds are ingested from public funding coverage and structured by an AI extraction pass; the extension is taken from the company's live site at the time we resolved it. Percentages are computed only over rounds where the relevant field resolved. Amounts are as announced; undisclosed rounds are excluded from medians. Back to the tracker →
