Practitioner vendor-reported
Veridian, a Swiss company spun out of the Cardano Foundation, builds identity infrastructure on KERI (Key Event Receipt Infrastructure) and ACDC: an open-source mobile wallet for iOS, Android and GrapheneOS, tooling for issuing vLEI credentials, services for Utah's State-Endorsed Digital Identity (SEDI) program, and an age-verification API, by its own account. It states that it holds maintainer status on KERIA and SignifyTS. For readers following which companies ship KERI products.