cri-o/vendor/github.com/opencontainers/image-spec/implementations.md

OCI Image Implementations

Projects or Companies currently adopting the OCI Image Specification

• projectatomic/skopeo
• Amazon Elastic Container Registry (ECR) (announcement)
• openSUSE/umoci
• cloudfoundry/grootfs (source)
• Mesos plans (design doc)
• Docker

• docker/containerd
• docker/docker (docker save/load WIP)
• docker/distribution (registry PR)

• Containers

• containers/build
• containers/image

• coreos/rkt
• box-builder/box

(to add your project please open a pull-request)