Metricool - Analyze, manage and measure your social media activity
Clearbit - Clearbit provides Business Intelligence APIs
GOAL - Creating perfect social media advertising
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Social media benchmarks by Socialinsider - Explore live social media competitive benchmarks by industry
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.