Dan Larimer co-founded Block.one with Brendan Blumer, the company's CEO, in 2017. He currently serves as Block.one's chief technology officer. In 2018, Block.one raised $4 billion for its EOS blockchain platform in the then largest initial coin offering ever. While promoting it, Larimer described EOS as technology that would serve millions of users. Nevertheless, EOS's launch was controversial with its developers and forming consensus among them in accordance with the EOS protocol delayed the start. The EOS code was later found to contain numerous errors and bugs.
In late autumn 2018, Larimer revealed that he was working on a new cryptocurrency, although he provided few details.
Forbes identified Larimer as one of the 30 richest persons in cryptocurrency in February 2018.
Before Block.one, Larimer had co-founded Steemit, where he served as CTO until leaving in 2017 to start Block.one. Steemit is a popular social media company which rewards writers and other participants with its own cryptocurrency, Steem.
Earlier, Larimer had established Invictus Innocations (sic) which built BitShares, a decentralized exchange that used its own stablecoin, bitUSD. Larimer invented the BitShares Delegated Proof of Stake algorithm, which has been used in everything including Steem and EOS as well as other tokens. The delegated proof of stake technology is contained in Graphene, which is an open source toolkit for blockchains.
Larimer's first jobs were in weapons design. He discovered bitcoin in 2009 and communicated his concerns about the propensity of proof of work to lead to centralization of power, which in turn would lead to both regulation and hacking. He was brushed off by Satoshi Nakamoto who responded in a public forum, "“If you don’t believe me or don’t get it, I don’t have time to try to convince you, sorry.”
Larimer received a Bachelor of Engineering degree in computer science from Virginia Polytechnic Institute and State University in 2003.