Alamy is a large, privately owned British stock media agency providing creative and editorial photos, videos, vectors, and 360-degree images from a global network of contributors, focusing on diverse, authentic, and fresh content for marketers and storytellers. They offer flexible licensing, operate an online marketplace for on-demand purchases, and are known for their vast, searchable library with millions of images, including news and archive content, aiming to support creators and provide unique visuals.