There are numerous payment gateways available for businesses, each with its own features, pricing structures, and supported countries. Here are 15 popular payment gateways used by businesses:

PayPal

PayPal

A widely recognized and accepted payment gateway with a global reach and easy integration options.

Stripe

Stripe

Offers a developer-friendly platform with extensive documentation, support for subscriptions, and customizable checkout experiences.

Square

Square

Known for its point-of-sale solutions, Square provides in-person and online payment processing, making it suitable for retail businesses.

Authorize.Net

Authorize.Net

Offers a robust platform for accepting payments online and in-person, supporting a variety of payment options.

Braintree

Braintree

Owned by PayPal, Braintree provides easy integration and supports mobile payments in addition to online payments.

2Checkout

2Checkout

A global payment gateway that allows businesses to accept payments in multiple currencies and offers recurring billing options.

Adyen

Adyen

A versatile payment platform that enables businesses to accept payments across various channels, including online, in-app, and in-store.

Worldpay

Worldpay

Provides a range of payment processing solutions, including online payments, in-store payments, and mobile payments.

PayU

PayU

A popular payment gateway in emerging markets, PayU supports online payments, mobile payments, and offers local payment options.

Skrill

Skrill

Focused on international money transfers and online payments, Skrill supports over 40 currencies and is popular in the gaming and gambling industries.

Payoneer

Payoneer

Primarily used for cross-border payments and freelancers, Payoneer offers multiple payment options, including prepaid cards and bank transfers.

WePay

WePay

Known for its ease of use and developer-friendly features, WePay allows businesses to accept payments online and provides APIs for integration.

Payza

Payza

Supports online payments, e-commerce transactions, and provides a secure platform for businesses to receive and send payments globally.

Razorpay

Razorpay

An Indian payment gateway that supports online payments, subscriptions, and provides customizable payment pages.

Paytm

Paytm

A leading mobile wallet and payment gateway in India, Paytm supports various payment methods and offers integration options for businesses.

It's worth noting that availability, fees, and features may vary depending on your location and business requirements. It's recommended to research each payment gateway's specific offerings and compare them to find the one that best suits your needs.