Marble Group
Institutional digital asset trading and GPU-backed credit for compute operators
The founders
MB
LM
The company
Marble is a New York capital markets firm running two businesses: Marble Markets, an institutional trading platform where Marble acts as counterparty across spot, lending and derivatives in digital assets, prediction-market block trades and OTC forwards on compute capacity; and Marble Compute, which arranges private and on-chain credit for independent neoclouds and GPU operators, secured by hardware and offtake contracts.
Two institutional appetites are colliding — digital assets and the scramble to finance GPU capacity — and Marble is wiring them into a single counterparty, with first products planned for early 2027.
Founded in 2026 by co-CEOs Matt Ballensweig and Leon Marshall, Marble pairs institutional trading with GPU-backed credit, a bet that the plumbing for compute markets will look a lot like the plumbing for digital assets.
Ballensweig was previously Global Head of Trading at BitGo and Marshall was CEO of Galaxy Digital's European business — a founding team with institutional trading and digital-asset operating experience on both sides of the Atlantic.
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