Hypevertise allows you to view in-depth analytics on an Influencers audience, engagement and posts giving you the ability to select the best Influencer for your campaign.
Heepsy - Find influencers in seconds. Instant access to influencers by location and category. Analyze and contact influencers. Start your campaign now.
VerifyShare - instagram, instagram tools, giveaway, parsing,
inzpire.me - An end-to-end solution for influencer marketing
Giv - Snapchat & Instagram giveaways made easy
NeoReach - Influencer marketing search & user content campaign tracking
Retweet Pick - Retweet Pick is a random name generator for Twitter giveaways via generating a winning name from the list.