ColdKey Devices LLC builds self-custody hardware wallet devices.

ColdKey Devices LLC designs and sells physical hardware wallets and accessories. Our mission is to make offline private-key storage understandable for customers who choose to self-custody digital assets.

Business address: 548 Market Street, Suite 48722, San Francisco, CA 94104, USA

Support email: support@appvexo.xyz

Phone: +1 (415) 555-0184