GetCompanyDetails.com - Check company details online. Be it a Public, Private, LLC, LLP, Partnership company, use GetCompanyDetails.com to find their full details registered with Registrar of Companies.
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.
ORGS.co - Search millions of companies from all over the world. Reasearch on revenues, competitors, employees, growth now all in one place.
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Marvel Embeds - Embed interactive prototypes on any site (including Medium!)
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.