Clearbit - Clearbit provides Business Intelligence APIs
Demandbase - Bizo
Memotoo - Memotoo allows you to sync your data (contacts, calendar, tasks, .) with phones (iPhone, Android, Samsung, ..
Metadata - Metadata automates account based demand generation for B2B companies using AI, data enrichment, & targeted advertising.
Free Address Book - In our contact management software you can store fast and easily name, phone numbers, birthdays, address, company name, city, mobile numbers, insurance and loan info, e-mail addresses.
6sense - 6sense is a B2B predictive intelligence engine for marketing and sales.