Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Accounting Seed - Accounting software on Salesforce
Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.
FinancialForce Financial Management - FinancialForce.com provides cloud back-office applications for Salesforce CRM.
Recurly - Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.
Sage Intacct - Intacct is a cloud-based accounting and financial management system that is designed for the businesses of all levels.