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.

LinkedIn Sales Navigator - Sales tool for LinkedIn users.

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.

Gainful.io - Capture B2B leads on AngelList, CrunchBase and LinkedIn

Sidekick by Hubspot - Customer insight integrated with your email tools.

Clearbit - Clearbit provides Business Intelligence APIs