Vungle - Vungle helps mobile application developers promote and monetize their apps through in-app video trailers.

Img.vision - Image hosting & video hosting for eCommerce sellers

Smaato - Smaato is a mobile-first platform and free ad server for publishers & app developers.

UploadHouse - Thumbnail and resize your photos and images

Widespace Summit - Summit is a full-stack programmatic ad platform and marketplace designed specifically to deliver branding campaigns on mobile.

ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.