Vimeo - Vimeo is a social media app that lets you share and capture videos. You can watch new videos in a variety of different categories, and you can share your own content right from your device. Read more about Vimeo.
Tubics - SEO & analysis for YouTube videos
Wistia - Host, manage, and track your videos with the best video marketing tools in the (known) universe.
VidIQ - Generate tags for YouTueb Videos. Works as a browser extension .
Kaltura - Video solutions for media, service providers, enterprises, and education - OTT TV, Webcasting, Enterprise YouTube, VPaaS – live and VOD.
TubeSift - A Game-Changing Tool for YouTube Advertisers - TubeSift enables you to quickly extract extensive lists of highly relevant and popular YouTube videos with monetization enabled and start showing your ads on all of those videos in minutes.