Just because a product is chosen does not mean it's the best, could be the cheapest, with the cheapest service, as you know TELVUE has lost money on PEG every year. They fulfill a need but with cost cutting, and underbids competition, I'd say they are the cheapest not the best. Let's just look at brightcove and their extensive worldwide customer list? Now comparing them and their customers, who is best? who has more?? if that's the basis for the best, and you are using total customers as your criterion, Telvue loses.
As for cloud computing, way too many companies to list, Cisco, Microsoft, BOX, Dropbox, just to name a few:
Video Streaming Cloud companies:
AMAZON, Rackspace, Akamai, Brightcove, to name a few.