2. Stripe: A payment processor that offers a variety of tools for businesses, including the ability to accept payments online and in mobile apps.
3. Square: A popular choice for small businesses, offering a range of payment solutions including mobile card readers.
4. Authorize.Net: A payment gateway service provider allowing merchants to accept credit card and electronic check payments through their website.
5. Google Pay: An online payment system and digital wallet platform by Google.
6. Amazon Pay: Allows users to make payments using their Amazon accounts.
7. Braintree: A full-stack payments platform that makes it easy to accept payments in your app or website.
8. 2Checkout: An all-in-one monetization platform that allows businesses to quickly expand internationally and optimize recurring revenue streams.
9. Shopify Payments: An integrated payment service designed for Shopify platform users.
10. Adyen: A payment gateway that allows businesses to accept e-commerce, mobile, and point-of-sale payments.
11. WorldPay: A global leader in payments processing technology and solutions for businesses.
12. Skrill: An online e-wallet and money transfer service.
13. Payoneer: A financial services company providing online money transfer and digital payment services.
14. Klarna: A Swedish fintech company that provides buy now, pay later services, which are gaining popularity.
15. BitPay: A payment service that enables users to accept payments in Bitcoin and other cryptocurrencies.