Zerothird
Zerothird is a cybersecurity company specializing in Quantum Security, founded in 2023 and headquartered in Vienna, Austria. It has raised $10M in equity across 2 priced rounds and is privately held.
updated Oct 11, 2026
Latest Zerothird news and company activity
What Zerothird did, dated — selected moves from the record, one per kind, newest first.
- Oct 2026PartnershipQuantum-Secure Communication Between Vienna and Frankfurt
- Apr 2026Customer winzerothird's Media Cover Breakthrough
- Nov 2025PartnershipCisco's quantum quest takes entanglement QKD tangent
14 events tracked since Aug 2025 · selected events shownUnlock the complete Zerothird timeline
Zerothird funding
Zerothird has raised $10M in priced equity. Its most recent round was a Seed in March 2026. It has 2 funding rounds on record: Seed and Seed. 4 investors are on record, including KGAL Group and Sparring Capital Partners.
- Equity raised
- $10M2 priced rounds
- Last round
- SeedMar 2026
Zerothird competitors
Competitors of Zerothird include Falqon Systems, LuxQuanta, and evolutionQ. 19 more are in the platform, with overlap scoring.
matched by product category and features
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The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobslive postings, hiring pace, role mix
- Tech stackframeworks, clouds, security
