14 Cyber Security companies in Estonia
14 Cyber Security companies in Estonia with 15 founders and decision-makers, led by Tallinn. 2 verified founder emails. Updated 2026-10-03.
Key findings
- FindMeMail tracks 14 Cyber Security companies in Estonia, with 15 founders and decision-makers listed.
- Tallinn is the top city, with 13 of them (93%), followed by Kuressaare (1).
- The most common team size is 1-10 employees (93% of companies).
- 13 (93%) were founded in the last three years.
- 1 have a recorded funding round; the most common is Seed (1).
- 1 companies (7%) have at least one verified founder email, 2 verified emails in total.
Breakdown
Top cities
- Tallinn: 13 (93%)
- Kuressaare: 1 (7%)
Team size (employees)
- 1-10: 13 (93%)
- 11-50: 1 (7%)
Latest funding round
- Seed: 1 (7%)
Founded (last 10 years)
- 2025: 7 (50%)
- 2026: 6 (43%)
Recently added Cyber Security companies in Estonia
- Corevex — Tallinn, Estonia: Corevex provides software engineering and cyber readiness platforms for secure, energy-aware digital infrastructure.
- LenoTYPE Group — Tallinn, Estonia: LenoTYPE Group provides computer systems management, programming, web consulting, and other information technology services.
- arikami OÜ — Tallinn, Estonia: arikami is a consultancy that designs ethical AI governance frameworks and advises on secure, human-centered AI implementations.
- NIST Security Services OÜ — Tallinn, Estonia: NIST Security Services is a managed security and cybersecurity services provider offering SOC, MDR, consulting, and outsourcing.
- CLU Systems OÜ — Tallinn, Estonia: CLU Systems develops AI-driven cybersecurity tools and provides programming and related IT consultation services.
- Secocyber OÜ — Tallinn, Estonia: Secocyber provides cybersecurity consulting, threat scanning, fraud detection, and digital security platforms and services.
- LuisFerreira Consulting — Tallinn, Estonia: LuisFerreira Consulting provides independent strategic IT, cybersecurity, and governance advisory services to senior executives.
- SecureSpells — Tallinn, Estonia: SecureSpells scans websites for cookies, trackers & privacy risks that give compliance scores, report issues, & offer continuous monitoring.
- SimpliDo — Tallinn, Estonia: SimpliDo is an IT services company that provides cybersecurity services, IT audits, and conformance assessment for organizations.
- AISIBLY — Tallinn, Estonia: AI agent discoverability platform for businesses and professionals
- RansomLeak — Tallinn, Estonia: Interactive 3D security awareness training where employees face realistic phishing and social engineering simulations.
- Clampd — Tallinn, Estonia: Clampd is the runtime firewall and tool call security layer for AI agents and MCP servers.
- ScamGuardian.AI — Kuressaare, Estonia: Providing Actionable Intelligence to Stop Scams
- eID easy — Tallinn, Estonia: eID Easy is a SaaS B2B marketplace of Qualified Electronic Signatures (QES) and electronic identity
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Frequently asked questions
How many Cyber Security companies in Estonia are there?
FindMeMail currently lists 14 Cyber Security companies in Estonia with at least one founder or decision-maker identified. The count updates daily as new companies are added.
Where are most Cyber Security companies in Estonia based?
Tallinn (13), Kuressaare (1).
How do I contact founders of Cyber Security companies in Estonia?
2 verified founder emails are available for these companies on FindMeMail. Create a free account to get 50 free reveals, then buy one-time credit packs from $12.
Related reports
- Cyber Security companies in United States (259)
- Software companies in Estonia (87)
- Artificial Intelligence (AI) companies in Estonia (59)
- Consulting companies in Estonia (56)
- Cyber Security companies in United Kingdom (43)
- Enterprise Software companies in Estonia (41)
- Education companies in Estonia (31)
- Retail companies in Estonia (30)
- E-Commerce companies in Estonia (29)
- SaaS companies in Estonia (27)
- Information Technology companies in Estonia (27)
- Cloud Computing companies in Estonia (21)
Methodology: counts include companies in the FindMeMail database with at least one identified founder or decision-maker. Data refreshes automatically as new companies are added.