Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Cakemail - Email marketing and transactional emails that deliver. Try it for FREE!
SendGrid - Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free
Hatchbuck - SMB sales and marketing software
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Salesfusion - Salesfusion provides an easy to use marketing automation platform that allows sales and marketing teams to be successful.