Circle is a financial technology company best known as the issuer of USD Coin (USDC), the second-largest stablecoin by market capitalization. Founded in 2013 by Jeremy Allaire and Sean Neville in Boston, the company has evolved from a peer-to-peer payment service into one of the most important infrastructure companies bridging traditional finance and blockchain.
USDC is a fully-reserved stablecoin, meaning every USDC token is backed by a corresponding amount of cash and short-term US Treasury bonds held in regulated financial institutions. Circle publishes regular attestation reports from independent accounting firms to verify these reserves. This transparency has made USDC a preferred stablecoin for institutional users and regulated entities.
The stablecoin runs natively on multiple blockchains, including Ethereum, Solana, Avalanche, Polygon, and others, with Circle’s Cross-Chain Transfer Protocol (CCTP) enabling native USDC transfers between supported chains. At various points, USDC’s market cap has exceeded $50 billion, reflecting massive demand for dollar-denominated tokens in the crypto ecosystem.
Circle generates revenue primarily from the interest earned on the reserves backing USDC — a business model that became significantly more profitable as interest rates rose from 2022 onward. The company also offers Circle Mint for institutional USDC minting and redemption, and various APIs for businesses to integrate USDC payments.
The company filed for an IPO and has positioned itself as a compliance-first alternative to less transparent stablecoin issuers. Based in Boston with offices globally, Circle has been active in advocating for stablecoin regulation, viewing clear rules as beneficial for its business model. The company’s close relationship with Coinbase (which co-founded the Centre Consortium that originally governed USDC) has been instrumental in USDC’s distribution.
