Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Kajabi - Kajabi is the only Knowledge Commerce platform today with everything you need to market, sell, and deliver your knowledge online.
Razorpay - Payment gateway solution for India with robust, developer friendly API and simple economic pricing.
Tendenci - Tendenci - The Open Source AMS is a cloud-based all-in-one management SaaS solution for Non-profits and Associations.
PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller
YourMembership - YourMembership provides membership management software integrated with social networking features.