Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.
DigitalChalk - Online Training Software and Learning Management System (LMS)
Recurly - Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
Zuora - Zuora creates cloud-based software on a subscription basis that enables any company in any industry to successfully launch, manage, and transform into a subscription business.
Moxtra - Moxtra is a multi layered, embeddable team collaboration solution.