DeviceAssure

DeviceAssure project was initiated in 2016, to address industry challenges around duplicate IMEIs and counterfeit devices. DeviceAssure builds on the technology of the DeviceAtlas solution, which is used by major brands, telco, and technology companies to better engage with audiences no matter what the device, content, or context. Over 55,000 highly detailed device profiles are available, with new devices added on a daily basis.

DeviceAssure  is part of Afilias, mobile and web services of which has deep expertise in the mobile industry, focusing on providing real time intelligence on mobile devices, web and app traffic.
Source: https://deviceassure.com/about-us