InsightSquared - #1 for Salesforce.com Pipeline forecasting, profitability analysis, activity tracking: all the small business intelligence you need. Works using CRM data and automatic syncing.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Aviso - Aviso provides predictive analytics software to help sales organizations optimize their performance and exceed revenue goals using machine learning algorithms and portfolio management techniques.
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.
Sidekick by Hubspot - Customer insight integrated with your email tools.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.