iClassPro - iClassPro is a popular web based class management software for Gymnastics, Cheerleading, Swim, Dance, and other enrollment based businesses.

Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.

Noor - Chat like you're in the office together

Recurly - Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.

Schoox - Schoox offers the modern learning and knowledge management system for organizations.

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.