Marble (institutional trading and finance)

On November 10, 2026, Marble announced an $11 million seed round led by Polychain CapitalPolychain CapitalPolychain Capital is a digital asset investment firm founded in 2016 by Olaf Carlson-Wee and headquartered in San Francisco. Its business covers actively managed blockchain asset portfolios and investments in related companies, with public investments spanning base networks, cryptography, on-chain finance, payments, data and artificial intelligence.Open the full entry, with Maven 11, RippleRippleRipple is an American fintech company, legally named Ripple Labs Inc., that provides banks, payment providers, funds, and businesses with blockchain- and digital asset-based cross-border payments, digital asset custody, a U.S. dollar stablecoin, prime brokerage, and corporate treasury management services. Its business makes extensive use of the public XRP Ledger blockchain and its native token XRP, but neither is the same as the company itself; from 2020 to 2025, the company fought a nearly five-year legal battle with the U.S. Securities and Exchange Commission over whether its XRP sales were unregistered securities offerings.Open the full entry, Susquehanna Crypto, Lattice, Blockwall and other investors participating.⁠[2]

Marble Group, Inc. is a DelawareDelawareDelaware is a U.S. state in the Mid-Atlantic region on the East Coast, with its capital at Dover and Wilmington as its largest city. On December 7, 1787, it became the first state to ratify the U.S. Constitution, entering the Union as the 1st state, and it had a population of 989,948 in the 2020 census (April 1, 2020).Open the full entry corporation with its principal office in New York. Its disclosures, updated November 10, 2026, state that Marble Markets and Marble Compute remain in formation, have not obtained the required registrations, licences or approvals, and are not yet offering services.⁠[3]

The company anticipates beginning client onboarding in 2027, subject to approvals and other uncertainties. Its proposed services are intended for eligible institutional counterparties rather than retail investors. Registering interest does not open an account or establish a client relationship.⁠[3]

Matt Ballensweig and Leon Marshall co-founded Marble and serve as co-CEOs. Ballensweig built BitGoBitGoBitGo is an American digital asset custody and infrastructure company founded in 2013 by Mike Belshe. It offers custody, wallets, staking, trading, financing, stablecoin and settlement services, and its subsidiary BitGo Bank & Trust, National Association, is a national trust bank regulated by the Office of the Comptroller of the Currency. The company listed on the New York Stock Exchange under the ticker BTGO in January 2026 and is the custodian and infrastructure provider for World Liberty Financial’s USD1 stablecoin.Open the full entry’s institutional OTC trading and capital-markets business, previously joined Genesis Trading as its eighth employee, and helped develop its trading and lending operations. He also worked at Goldman SachsGoldman SachsGoldman Sachs is an American financial services group headquartered in New York whose businesses include investment banking, securities trading, asset management, and wealth management. It traces its origins to the commercial paper business Marcus Goldman founded in 1869; it listed on the New York Stock Exchange in 1999 under the ticker GS and became a bank holding company in 2008. David Solomon serves as chairman and chief executive officer.Open the full entry, Fidelity and Bridgewater Associates.⁠[4]

Marshall previously served as CEO of Galaxy Europe and as managing director and global head of sales at Genesis. Earlier, he managed commodities portfolios at ApolloApolloApollo (Apollo Global Management, Inc.) is an asset management and retirement services group founded in 1990 and listed on the New York Stock Exchange under the ticker APO. Its investment business spans credit, equity, and real assets; after its 2022 merger with Athene, asset management and retirement services were brought under the same listed parent company. At the end of June 2026, the group reported assets under management of about $1.047 trillion.Open the full entry Global Management and Trafigura after beginning his career at UBSUBSUBS is a global financial group headquartered in Zurich, Switzerland, operating wealth management, Swiss personal and corporate banking, asset management and investment banking. Its modern bank emerged from a 1998 merger, its holding company was incorporated in 2014, and it acquired Credit Suisse in 2023.Open the full entry Investment Bank.⁠[4]

Marble plans to assess equipment, customer credit and cash flow when financing GPU operators, and to develop compute forwards. Planned trading services include spot, lending, derivatives and prediction-market blocks, with tokenized equities and equity swaps among longer-term aims. Financing products and services remain subject to applicable regulatory requirements.⁠[2]

Marble’s official website is marblegroup.xyz. It links to the X account @marblegroupxyz and the LinkedInLinkedInLinkedIn is a social networking platform for professionals. It was founded in 2002 by Reid Hoffman and others, launched in 2003, and listed on the New York Stock Exchange in 2011; after Microsoft acquired it for approximately $26.2 billion in 2016, it became a wholly owned Microsoft subsidiary. Its revenue comes from membership subscriptions, advertising, and recruitment solutions.Open the full entry company page linkedin.com/company/marblegroupxyz.⁠[1]