The NCCoE initiated this project in collaboration with industry participants to show how the components of 5G architectures can securely mitigate cybersecurity risks and meet industry sectors’ compliance requirements.
The other companies are AT&T, T-Mobile, Intel, Cisco, Dell, CableLabs, AMI, Keysight Technologies, MiTAC, Red Hat, and PaloAlto Networks.
No Ericsson, Huawei, Samsung or ZTE which is good. Huawei did just open a huge cyber security center in China though.
The source of this screenshot is a Reddit client called Traddit
Android: https://play.google.com/store/apps/details?id=com.bytmatic.traddit&hl=en_US&gl=US
iOS: https://apps.apple.com/us/app/traddit-for-reddit/id1593956528