MailChimp - MailChimp is the best way to design, send, and share email newsletters.
SharpSpring - Simple Marketing Automation for Agencies and SMBs
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Clearbit - Clearbit provides Business Intelligence APIs
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Lead Forensics - B2B website analytics and lead generation.