Citadel Systems Competitors

We’re building an open economy for everyone. Circle’s full-stack internet financial platform brings together Arc, Digital Assets like USDC, and Apps to help builders and organizations create innovative financial experiences and expand opportunities for people worldwide. Thousands of companies and millions of people have already settled trillions with Circle. What will you build in the open economy? Arc Testnet provided by Circle Technology Services, LLC, a software provider. Not a financial or advisory service. Not reviewed or approved by NYDFS. Users responsible for their own compliance. See arc.network for more. USDC is issued by regulated affiliates of Circle. See Circle’s list of regulatory authorizations: https://www.circle.com/legal/licenses USDC lifetime onchain transaction volume as of Mar 23, 2026 8:00 PM.

software company

Fireblocks is the world’s most trusted digital asset infrastructure company, empowering organizations of all sizes to build, manage and grow their business on the blockchain. With the industry’s most scalable and secure platform, we streamline stablecoin payments, settlement, custody, tokenization, trading, accounting operations, and compliance reporting- enabling everything from institutional finance to consumer-facing digital experiences across the largest ecosystem of banks, payment providers, stablecoin issuers, exchanges and custodians. Thousands of organizations - including Worldpay, BNY, Galaxy, and Revolut - trust Fireblocks to secure more than $14 trillion in digital asset transactions across 150+ blockchains. Learn more at fireblocks.com. --- Fireblocks operates globally with offices in the United States, United Kingdom, Israel, Hong Kong, Singapore, Germany, France, and Switzerland.