SendRecurring - SendRecurring allows you to setup, send, and maintain scheduled email reminders.
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Recurrr - Send recurring emails
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
FollowUpThen - The simplest way to schedule an email reminder
Marketo - Marketo's powerful marketing automation software helps marketers master the art & science of digital marketing to engage customers and prospects.