AddThis - AddThis free website tools include share buttons, targeting tools and content recommendations help you get more likes, shares and followers and keep them coming back.
Clearbit - Clearbit provides Business Intelligence APIs
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
Amobee DSP - Cross-Channel Advertising
AddToAny - Share buttons by AddToAny, the universal sharing platform for websites and apps.
DataXu - Marketing analytics for brands and agencies.