Img.vision - Image hosting & video hosting for eCommerce sellers
GPUImage - GPUImage is an open source iOS framework for GPU-based image and video processing.
UploadHouse - Thumbnail and resize your photos and images
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.
IMG.LY - Power Your Apps with IMG.LY | The Leading Provider of Design, Photo, and Video Editing SDKs