Brendan Blumer is the chief executive of Block.one — the Cayman Islands-based technology company led by Blumer and CTO Dan Larimer that released the EOSIO blockchain protocol and conducted the EOS initial coin offering from June 2017 to June 2018, raising approximately $4.1 billion in ETH — then the largest single fundraise in cryptocurrency history — and subsequently settled with the SEC for $24 million over unregistered securities violations before pivoting to build Bullish, a regulated institutional cryptocurrency exchange.
Background
Brendan Blumer is a Canadian-born entrepreneur who developed an early career in online gaming and virtual goods economies — including building services for trading in-game items for games like World of Warcraft and EverQuest through companies including Accounts Direct and i Game (later GigMedia). These ventures gave him early exposure to virtual economies and digital asset scarcity before Bitcoin existed.
He later moved into real estate and broader technology ventures before the crypto industry attracted his focus. He connected with Dan Larimer (creator of BitShares and Steem) and together they founded Block.one to develop EOSIO.
Block.one and EOSIO
EOSIO was designed by Dan Larimer as an Ethereum competitor with dramatically different trade-offs:
- Delegated Proof of Stake (DPoS) — Token holders vote for 21 block producers (BPs) who take turns producing blocks.
- Zero transaction fees — Instead of gas fees, users stake EOS for CPU and NET bandwidth resources.
- High throughput — EOSIO claimed 1,000+ TPS in early benchmarks.
- Parallel execution — Smart contracts could execute in parallel across multiple CPU cores.
The EOS ICO (June 2017 – June 2018):
The EOS token distribution ran for exactly one year — one of the longest ICOs in history. Investors sent ETH to receive EOS tokens. Total raised: approximately $4.1 billion. As a deliberate ICO structure, block.one retained the ETH proceeds while distributing tokens to buyers.
SEC Settlement:
In September 2019, Block.one settled with the SEC for $24 million for conducting an unregistered securities offering — a relatively small fine given the $4.1B raised, which drew criticism that it set a perverse incentive.
Post-EOS Pivot — Bullish:
Block.one pivoted significantly from EOSIO operations (releasing the open-source code but not actively developing the chain) to building Bullish — a regulated institutional exchange backed by ~$10B in initial capital (from Block.one’s ICO war chest including Bitcoin, EOS, and cash). Bullish went public via SPAC in 2021. Blumer serves as chairman of Bullish Group.
EOS Performance and Criticism
EOS generated massive hype pre-launch but disappointed post-launch:
- Governance by 21 DPoS BPs proved prone to cartelization and collusion.
- Block producer vote-buying scandals emerged shortly after mainnet launch.
- dApp ecosystem development lagged Ethereum.
- The “Constitution” governance document was never fully implemented.
- EOS has since declined significantly in market cap and developer activity relative to its 2018 peak.
Key Dates
- Early 2010s — Gaming virtual goods businesses (Accounts Direct, i Game/GigMedia).
- 2017 — Co-founds Block.one with Dan Larimer; EOSIO development begins; EOS ICO starts.
- June 2018 — EOS ICO closes at ~$4.1B raised.
- June 2018 — EOS mainnet launches.
- September 2019 — SEC $24M settlement for unregistered ICO.
- 2021 — Bullish exchange launches; SPAC announcement.
- 2022–present — Bullish operates as regulated institutional exchange; EOS ecosystem declines.
Common Misconceptions
- “Block.one funds the EOS ecosystem.” — Block.one retained ICO funds but has been largely separate from the EOS mainnet community since 2021. The EOS Network Foundation (ENF) was formed by the community to take over protocol development independent of Block.one.
- “Brendan Blumer created the EOSIO technical design.” — The EOSIO protocol was technically designed by Dan Larimer; Blumer’s role was executive leadership, business strategy, and fundraising.
Last updated: 2026-04