# QuintessenceLabs

QuintessenceLabs is a quantum company with an address in San Jose, CA, United States.

Develops quantum-enhanced cybersecurity products including CV-QKD systems, a quantum true random number generator, key and policy management, and PQC readiness assessment.

## Details

- Address: San Jose, CA, United States
- Phone: [16508709920](<tel:16508709920>)
- Website: [www.quintessencelabs.com/](<https://www.quintessencelabs.com/>)
- Source of the listing data: Listed on https://quantumconsortium.org/members/; details checked on the organisation website https://www.quintessencelabs.com/ on 2026-11-01.

## Questions

### Where is QuintessenceLabs?

QuintessenceLabs is at San Jose, CA, United States.

### How do I contact QuintessenceLabs?

To contact QuintessenceLabs, call 16508709920 or visit https://www.quintessencelabs.com/.

## Source

From [Business websites](https://www.quintessencelabs.com/), license Business website facts; website text and images retain their original rights., checked 2026-11-03.

Last updated November 3, 2026.

## Links

- This quantum company on the [web page](<https://quantumcompanies.fyi/us/ca/san-jose/quintessencelabs>)
- [Quantum networking and QKD in San Jose](<https://quantumcompanies.fyi/us/ca/san-jose/category/quantum-networking.md>)
- [Quantum components in San Jose](<https://quantumcompanies.fyi/us/ca/san-jose/category/quantum-components.md>)
- [Post-quantum cryptography vendors in San Jose](<https://quantumcompanies.fyi/us/ca/san-jose/category/post-quantum-cryptography.md>)
- [More quantum companies in San Jose](<https://quantumcompanies.fyi/us/ca/san-jose.md>)