vidIQ

vidIQ is the first YouTube audience development and management suite that helps brands and agencies grow their views and subscribers. vidIQ is an end-to-end solution that assists YouTube Marketers at every step of their workflow, including uploading their videos at the best time of day, connecting brands with their top influencers, YouTube SEO, monitoring viewer and engagement analytics across Twitter and Facebook, bulk description editing, comment moderation, and Facebook fan page syndication. Have we make you curious? Download our free Chrome extension @ http://vidiq.com/apps/vision/.

The company was founded in 2012.