Meanwhile is a life insurance company that operates entirely in bitcoin. Its operating subsidiary, Meanwhile Insurance Bitcoin (Bermuda) Limited, is regulated by the Bermuda Monetary Authority (BMA), and its premiums, policy values, reserves, financial statements, and claims are all calculated in bitcoin. In 2024 it became the first insurer to receive the BMA’s Class IILT license; its investors include Sam Altman, Bain Capital Crypto, and Haun Ventures.
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COLDCARD is a line of hardware wallets from the Canadian Bitcoin hardware company Coinkite. It supports Bitcoin only and is built around air-gapped offline signing and open-source firmware; it was announced in December 2017, and as of October 2026 the models on sale are the COLDCARD Q and Mk5. In July 2026, attackers exploited a seed-generation randomness flaw that had sat in its firmware since 2021 and stole more than $100 million worth of bitcoin.
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Winklevoss Capital is a family office and early-stage venture capital firm founded in New York in 2012 by brothers Cameron Winklevoss and Tyler Winklevoss. It got its start by buying large amounts of bitcoin and has since invested in companies such as Gemini, Flexport, and Crusoe Energy and in crypto networks such as Ethereum, Zcash, and Filecoin; since 2025 it has led and driven the transformation of Nasdaq-listed Leap Therapeutics into Cypherpunk Technologies, which holds Zcash as its treasury asset.
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Martin Köppelmann is a co-founder of the Ethereum project Gnosis and chief executive officer of Gnosis Ltd. He and Stefan George first developed a Bitcoin prediction market before founding Gnosis under Consensys; after the 2025 Bybit theft he was appointed an adviser to the Safe Ecosystem Foundation.
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Brandon Lutnick is an American financial executive and the son of U.S. Commerce Secretary Howard Lutnick; since February 2025 he has been chairman and CEO of the New York financial services group Cantor Fitzgerald, holding control of Cantor through trusts he controls, and he also chairs several special purpose acquisition companies (SPACs) sponsored by Cantor, leading the merger with Twenty One, a Bitcoin company backed by Tether.
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Jerry Brito is a technology policy researcher, co-founder and board member of Coin Center, and its executive director from 2014 through 2024. Previously, he directed technology policy research at George Mason University’s Mercatus Center. His work addresses Bitcoin, financial regulation, payment privacy, open-source software and civil liberties. He also co-hosts the books podcast Worker & Parasite.
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Anycoin is a Czech crypto-asset trading and custody service operated by MP Developers s.r.o. Marek Kyrsch and Martin Čech started the project in late 2018. It offers fiat and crypto-asset exchange to individuals and businesses and obtained Czech National Bank authorisation under MiCA in 2026. That August, it became the execution and custody provider for Partners Banka’s in-app bitcoin service.
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Partners Banka is a Czech commercial bank headquartered in Prague that combines mobile banking with the Partners financial-adviser network. Its legal predecessor was established in 2020, obtained a banking licence in 2023 and began public operations in March 2024. Petr Borkovec became CEO in February 2026; the bank introduced in-app bitcoin trading through Anycoin that August.
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Nayib Bukele (born July 24, 1981) is a Salvadoran politician and businessperson who has served as president since 2019, after mayoral terms in Nuevo Cuscatlán and San Salvador. His presidency is associated with an anti-gang crackdown, Bitcoin initiatives and political institutional changes. Security gains have accompanied controversies over human rights, judicial independence and reelection rules.
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Maelstrom is an investment firm managed by Arthur Hayes’s family office and co-founded by Hayes and Akshat Vaidya. It invests across venture capital, liquid assets, private equity and public markets, focusing on digital assets and decentralized infrastructure. It also operates a grant program for open-source Bitcoin developers.
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Robert Kiyosaki is an American author, entrepreneur, and investor, the author of the bestselling personal finance book Rich Dad Poor Dad, and the co-founder, with Kim Kiyosaki, of the financial education company The Rich Dad Company. He has long promoted investing in cash-flowing assets and comments on social media about gold, silver, Bitcoin, and other assets; his company Rich Global LLC filed for bankruptcy in 2012 after being ordered to pay about $23.7 million in litigation with the seminar company Learning Annex.
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Eric Trump is an American businessman and the second son of US President Donald Trump; he has long served as an executive at the family business, the Trump Organization, and ran it with his older brother while his father was president. Since 2024 he has been one of the main public faces of the Trump family’s crypto businesses, co-founding World Liberty Financial and the Bitcoin mining company American Bitcoin.
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Nic Carter is a crypto venture capitalist and researcher who founded the venture firm Castle Island Ventures and co-founded the blockchain data company Coin Metrics; he has long written about Bitcoin, stablecoins, and the crypto industry’s access to banking.
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Anthony Pompliano (commonly known as “Pomp”) is an American investor, bitcoin advocate, and financial podcast host. He co-founded the investment firm Morgan Creek Digital Assets, and as of October 2026 he is Chairman and CEO of the Nasdaq-listed company Silvia, Inc. (formerly ProCap Financial) and runs the investment firm Professional Capital Management.
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Strategy (formerly MicroStrategy) is a Nasdaq-listed company (ticker MSTR) headquartered in Tysons Corner, Virginia, United States, founded in 1989 by Michael Saylor and originally built on enterprise analytics software. Since 2020, the company has used bitcoin as its primary treasury reserve asset and describes itself as the world’s first and largest Bitcoin Treasury Company; as of September 27, 2026, it held 847,666 bitcoins. Its current Chief Executive Officer is Phong Le.
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21Shares is an issuer of crypto asset exchange-traded products (ETPs) headquartered in Zurich, Switzerland, which lists physically backed crypto ETPs on several European exchanges and issues products in the United States such as the ARK 21Shares spot Bitcoin ETF; in November 2025 it was acquired by the digital asset prime broker FalconX.
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Olaf Carlson-Wee is an American cryptocurrency investor, the first employee of Coinbase, who founded the crypto investment firm Polychain Capital in 2016. Polychain returned more than 20-fold after fees in its first full year and passed $1 billion in assets under management in early 2018 before falling sharply in the bear market; it then expanded its venture investing, backing projects such as Uniswap, Solana, and Bittensor.
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Maxime Desalle is a crypto investment analyst and science writer who has written a long-form Zcash guide and a beginner’s introduction to the many-worlds interpretation of quantum mechanics; he is also a fellow of the Conjecture Institute.
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StarkWare is a blockchain technology company headquartered in Netanya, Israel, founded in 2018 by STARK proof co-inventor Eli Ben-Sasson and others. It uses zero-knowledge proofs to provide scaling, privacy and quantum-resistance solutions for Ethereum and other blockchains, has developed the StarkEx scaling engine, the Cairo programming language and the Stone and S-two provers, and leads development of the layer-2 network Starknet; its last funding round, in 2022, valued it at $8 billion.
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Eli Ben-Sasson is an Israeli computer scientist and entrepreneur, a co-inventor of the STARK, FRI and Zerocash protocols and one of the founding scientists of Zcash. Formerly a professor of computer science at the Technion, he left academia in 2018 to co-found the blockchain scaling company StarkWare, where he is now chief executive officer and chairman, and he serves on the board of the Starknet Foundation.