Brendan Blumer

Brendan Blumer (born August 8, 1986) is an American billionaire businessman who has served as chief executive officer of Block.one since 2016, which developed the EOS.IO blockchain platform and launched crypto exchange Bullish. He is based in Hong Kong.

Biography Early life Blumer was born and raised in Cedar Rapids, Iowa.

When Blumer was 15 years old, he developed Gamecliff (stylized as GaMeCliff), a website to sell virtual economy assets to be used in multiplayer online gaming. It displayed different characters, weapons, and houses for massively multiplayer online role-playing games including EverQuest and World of Warcraft.

In 2010, Blumer and Kokuei Yuan launched Okay.com, an enterprise data sharing platform for real estate brokers in Asia.

In May 2017, Blumer announced EOS.IO, a blockchain platform which launched a record setting initial coin offering (ICO), raising over $4 billion.

In February 2018, he was listed by Forbes as one of the "richest people in cryptocurrency".

In 2020, he launched Bullish with Kokuei Yuan; its initial public offering in August 2025 made Blumer a billionaire.

Personal life In 2020, Blumer renounced his US citizenship.

Blumer is to marry his partner, Salvatore Spano, in San Pantaleo, Sardinia on 5 September 2026.