Clearbit - Clearbit provides Business Intelligence APIs
Clari - Clari is a predictive analytics platform for sales people.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
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.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.
Looker - Looker makes it easy for analysts to create and curate custom data experiences—so everyone in the business can explore the data that matters to them, in the context that makes it truly meaningful.