Vero - Email platform for product, marketing and engineering teams
Looker - Looker makes it easy for analysts to create and curate custom data experiences—so everyone in the business can explore the data that matters to them, in the context that makes it truly meaningful.
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.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Aritic Mail - Ariticmail is a transactional email delivery API for applications and enterprises.
HubSpot Marketing Hub - HubSpot is a cloud-based inbound marketing software that allows businesses to transform the way that they market online.