What are some alternatives?
Crunchbase - Crunchbase is a platform for discovering industry trends, investments, and news about companies around the world.
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.
Owler - Owler is a crowdsourced data model allowing users to follow, track, and research companies.
Discoverly - See connections and information from social networks as you browse
CB Insights - CB Insights is a company database for the venture capital and corporate development community.
Statlistics - Statlistics is a list management and brokerage firm specializing in business and consumer list solutions.