Vero - Email platform for product, marketing and engineering teams
TitanMLM - TitanMLM is a modern multi-level marketing management software that allows businesses to manage their operations from a single platform.
Mailgun - A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
Swift Social - All-in-One Social Media Growth and Management Tool
Aritic Mail - Ariticmail is a transactional email delivery API for applications and enterprises.
Falcon.io - Falcon.io provides a platform for social marketing & customer experience management.