What are some alternatives?
Justuno - Conversion marketing platform with 20+ apps. Built for lead generation, sales conversion, and website messaging.
Lead411 - Lead411 provides company intel, contact email address, direct phone numbers and a sales cadence tool.
GetSiteControl - Perfect widgets for your website: surveys, email opt-in forms, contact forms, popups, follow, share buttons and live chats - all in one place!
Clearbit - Clearbit provides Business Intelligence APIs
AdRoll - AdRoll is a leader in retargeting display advertising. Draw the right people with the right strategies.
LinkedIn Sales Navigator - Sales tool for LinkedIn users.