Why the room needs them.
Amanda Cassatt is chief executive of Serotonin and was ConsenSys's chief marketing officer from 2016 to 2019. She joined the board of Nasdaq-listed Bit Digital effective 1 January 2026.
The full account.
Amanda Cassatt is chief executive of Serotonin, a services company for institutions and startups in the blockchain and crypto industry, which she founded in 2019. Before that she was chief marketing officer at ConsenSys from 2016 to 2019, joining the Ethereum software company about a year after Ethereum launched and building and leading its marketing and design functions. By her CoinDesk author biography, she created and scaled a marketing team of more than 50 people serving the ConsenSys brand and its portfolio companies, among them MetaMask, Infura, Truffle and Gitcoin, and that work put her on the Forbes 30 Under 30 list in 2016. Earlier she co-founded Slant and worked as a special projects editor at the Huffington Post. She holds a BA in English from Columbia University.
Cassatt wrote Web3 Marketing: A Handbook for the Next Internet Revolution, published by Wiley in April 2023, and has written opinion columns for CoinDesk, including pieces on the FTX collapse in November 2022 and on Asia's place in crypto markets in December 2023.
In December 2025 Bit Digital, a Nasdaq-listed digital asset company, announced her appointment to its board of directors, effective 1 January 2026. Bit Digital chief executive Sam Tabar said her experience "sits directly at the intersection of Bit Digital's strategic priorities", citing her understanding of digital assets, infrastructure and how emerging technologies are communicated to institutional audiences. A proxy statement Bit Digital filed with the US Securities and Exchange Commission in June 2026 records her election to that board for a one-year term and identifies her as chief executive of Serotonin Inc.
At Proof of Talk Paris 2026, Cassatt moderated a fireside on the Hecto Main Stage on 2 June, "Investment Opportunities in the Rise of Stablecoins", scheduled from 16:45 to 17:15, with Diogo Mónica and Rob Hadick.
What Amanda believes about the next ten years.
Years of shipping.
Lines that keep proving correct.
“I look forward to supporting the mission of making Ethereum and AI compute accessible to the public markets. I appreciate Bit Digital's thoughtful, long-term approach to the assets and infrastructure that matter most for the future.”
“The FTX collapse was a failure of CeFi, not DeFi – and smart investors, builders and users are already taking notice.”
“The next bull market will have a distinct geographical flavor, with Asia taking center stage.”
What they have built, written, and backed.
Built
- SerotoninA services company for institutions and startups in the blockchain and crypto industry, founded by Cassatt in 2019 and led by her as chief executive.
- ConsenSys's marketing functionAs chief marketing officer from 2016 to 2019, Cassatt built and led ConsenSys's marketing and design functions, scaling a team of more than 50 people serving the ConsenSys brand and its portfolio companies.
- Web3 Marketing: A Handbook for the Next Internet RevolutionCassatt's book on marketing practice for blockchain and crypto companies, published by Wiley in April 2023.
Amanda at Proof of Talk Paris 2026
The next Proof of Talk is in Abu Dhabi.
Louvre Abu Dhabi, 3–4 December 2026. Admission is by application, and the room is capped at 2,000.
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