Cloudinary - Cloudinary is a cloud-based service for hosting videos and images designed specifically with the needs of web and mobile developers in mind.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Sirv - Dynamic image processing, hosting and rich-media for retailers and eCommerce.
Filecamp - Digital Asset Management & Online Proofing tools beautifully integrated, into one secure and cost-effective solution. Manage all your digital marketing assets from your own good-looking, easy-to-use spot in the cloud. Unlimited users in all plans!
imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
Nubo - A self-hosted file sharing application in Haskell.