MoonPay is a financial technology company that builds payments infrastructure for crypto. Its on-and-off-ramp suite of products provides a seamless experience for converting between fiat currencies and cryptocurrencies using all major payment methods, including debit and credit cards, local bank transfers, Apple Pay, Google Pay, and Samsung Pay. MoonPay is active in more than 160 countries and is trusted by 300+ leading wallets, websites, and applications to accept payments and defeat fraud. The company is based in Miami, Florida, and was founded in 2019.

Banxa is a compliant digital banking infrastructure company that also offers a fiat-to-crypto conversion service and provides regulatory compliance, fraud detection and mitigation, as well as payment reconciliation solutions.

Transak is a developer integration for a fiat-to-crypto payment gateway.

Ramp is a Polish cryptocurrency API company that wants to make using cryptocurrencies as easy as shopping online. It describes itself as a crypto on-ramp specialist and aims to allow users to buy crypto without leaving their dApp or wallet.

Mercuryo payment gateway partners with cryptocurrency exchanges to enable bank card payments and withdrawals.

Stellar is a nonprofit that provides a decentralized protocol for sending and receiving money in any pair of currencies. This means users can, for example, send a transaction from their Yen balance and have it arrive in Euros, Yen, or even bitcoin. The company is expecting to support the usual categories of transactions: payments to a merchant, remittances back home, or rent splits with a roommate.