Microsoft has definitely stepped up its open source efforts in recent years and should be lauded for that: projects like TypeScript are good for the community.

Microsoft has definitely stepped up its open source efforts in recent years and should be lauded for that: projects like TypeScript are good for the community. Still, their brag about being the most popular org made me wonder how the chips would shake out if you could truly count all the software published by one company. Google, for instance, tends to have separate orgs for its major open source projects: Polymer, Angular, Material, AMP, TensorFlow, Kubernetes, Firebase, and Chrome are all examples of major Google open source projects that each have (at least) one of their own orgs. GitHub's org/repo URL scheme doesn't scale well to companies with many unrelated initiatives, so measuring "most contributors by GitHub org" isn't a useful metric.