People compare Bitcoin to the Internet. Well, the Internet required an enormous hardware infrastructure buildout before its potential as a software platform could be realized. That's where 21 comes in. We believe that Bitcoin isn't going to happen simply by dropping a line of Javascript into a webpage. Someone needs to build the full-stack infrastructure for Bitcoin, from silicon to software. Backed by Andreessen Horowitz and Peter Thiel, that someone is us.

San Francisco, US
156 (est)+4%

21 Locations

San Francisco, US

21 Metrics

21 Summary

Founding Date


Total Funding

$121 M

Latest funding size

$116 M

Time since last funding

over 1 year


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21 Company Life