FameBit - Easiest Way to Find, Hire, and Work with YouTube Influencers
Buzzstream - Build Relationships. Build Buzz. Web-based software that helps the world’s best marketers promote their products, services and content.
Smarp - Smarp is an employee advocacy SaaS solution that turns employees into brand ambassadors and influencers.
RocketLink - Rocketlink helps to grow your audience with URL shortener that allows firing retargeting scripts when the link is clicked.
inzpire.me - An end-to-end solution for influencer marketing
Linkly - Linkly is a tool to help affiliate marketers track clicks and improve revenues.