TinyJPG - Compress JPEG images with perfect quality and file size
imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
Short.io - Short.io makes short links (vanity urls) on your own domain. Free signup, analytics and API. Chrome, slack, zapier and segment integrations.
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
Gumlet - Gumlet is an end-to-end video streaming and image delivery platform
Sirv - Dynamic image processing, hosting and rich-media for retailers and eCommerce.