Crunchbase - Crunchbase is a platform for discovering industry trends, investments, and news about companies around the world.

Buzzstream - Build Relationships. Build Buzz. Web-based software that helps the world’s best marketers promote their products, services and content.

CB Insights - CB Insights is a company database for the venture capital and corporate development community.

Retargetlinks - Turn every link you share into targeted ads

Tracxn - data on companies

RocketLink - Rocketlink helps to grow your audience with URL shortener that allows firing retargeting scripts when the link is clicked.