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

Vaave - Cloud-based alumni management solution for all alumni needs

Pabbly Subscriptions - Pabbly Subscription is a recurring billing & subscription management software.

ToucanTech - A beautiful all-in-one cloud software to manage and grow your alumni community.

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

Gradsgate - Alumni management software for schools & universities