Sumo - Free tools to grow your email list.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Pure360 - Email Marketing Software and Services
eDesk - Business Tools, Support, Sales, and Marketing, and Help Desk
ChannelAdvisor - As your partner in e-commerce success, we’re here to help you acquire more customers and land more sales than ever before. We keep our customers growing — and we have the stats to prove it.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.