Denarium Bitcoin

Affordable Physical Bitcoins, sold worldwide, under a trustworthy brand.


A distributed financial system built on top of the Bitcoin blockchain. Counterparty provides free, open & secure financial markets on Bitcoin.

Rhymes With Fiat

Rhymes With Fiat is an ongoing crypto-focused webcomic with a soft educational slant.


Fairlay is a prediction market using Bitcoin. You can predict on the news and Bitcoin events or suggest your own events and earn money.


BitTrust provides ratings for Bitcoin merchants and services to let people know which websites they can trust with their money.


Blockstream is a startup focused on advancing Bitcoin by developing sidechain technology.