Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.
Clearbit - Clearbit provides Business Intelligence APIs
Recurly - Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
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.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.