Future Electronics is ranking 3rd in part sales has agreement with MobileKnowledge,

The MK UWB Kit Mobile Edition is the first development kit that allows users to evaluate UWB interoperability with Apple® and AndroidTM mobile devices. The MK UWB Kit RTLS supports the deployment of accurate indoor localization systems using Time Difference of Arrival (TDoA) technique.

https://express-press-release.net/news/2024/05/06/1578616