Fireblocks

MPC wallets and custody, stablecoin payments

US/IL$8B privateest. 2018fireblocks.com (opens fireblocks.com)Checked 11 Oct

The brief

Analyst view
  • Says it has secured over $10T in digital asset transactions across 120+ blockchains for thousands of firms (Jun 2026).
  • Picked in Apr 2026 to run the token stack for Qivalis, a bank-owned euro stablecoin (37 banks by Sep 2026).
  • Clients include BNY, Revolut, Galaxy and Worldpay; holds a New York trust charter for custody.

Technical approach

As reported
Keys

No whole private key, ever

Multi-party computation splits each key into shares held on separate machines; they sign together without the full key existing anywhere.

Hardware

Shares sealed in secure enclaves

Key shares and policy logic run inside Intel SGX or AWS Nitro enclaves, so even someone controlling the server cannot read them.

Policy

Rules enforced before signing

A policy engine checks who is sending what, where and how much, and requires the right approvals before the key shares will sign.

Network

Clients settle with each other

Firms on Fireblocks can find and pay one another directly, and the payments network adds ramps, FX and stablecoin issuers.

Primer