Publicfast - The first influencer marketing platform for Periscope
Rep - Influencer marketing made easy
Klear Chrome Extension - Find influencers right in your twitter feed
Mention ✪ Influencers Dashboard - Identify the influencers talking about your company
Influencers by Buzzbomb - Find, manage and track influencers.
inzpire.me - An end-to-end solution for influencer marketing