Who are Zerothird's competitors?

Falqon Systems, LuxQuanta, and Crypta Labs are among the closest in Quantum Security. The full competitive set, with overlap scoring, is in the platform.

What products does Zerothird sell?

Zerothird sells Quantum Industries High Speed QKD System and Quantum Industries Long Distance QKD System.

Zerothird

Quantum SecurityVienna, Austriafounded 2023private

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.

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updated Oct 4, 2026

Zerothird products

Quantum Industries High Speed QKD SystemHardware QKD system for quantum-secure cryptographic key distribution.Details ↗
Quantum Industries Long Distance QKD SystemLong-distance quantum key distribution system for secure cryptographic key exchange.Details ↗

Zerothird funding

Zerothird has raised $10M in priced equity. Its most recent round was a Seed in March 2026.

Equity raised: $10M2 priced rounds
Last round: SeedMar 2026

View the complete funding history

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

Similar in Quantum Security

Common questions about Zerothird.

How much funding has Zerothird raised?: Zerothird has raised $10M in priced equity. Its most recent round was a Seed in March 2026.
Who are Zerothird's competitors?: Falqon Systems, LuxQuanta, and Crypta Labs are among the closest in Quantum Security. The full competitive set, with overlap scoring, is in the platform.
What does Zerothird do?: Zerothird is a cybersecurity company specializing in Quantum Security, founded in 2023 and headquartered in Vienna, Austria.
What products does Zerothird sell?: Zerothird sells Quantum Industries High Speed QKD System and Quantum Industries Long Distance QKD System.