Kantar recently introduced Project Moonshot to measure the effectiveness of advertising in the absence of cookies.
Project Moonshot is the first advertising industry initiative to establish direct data integrations with companies such as Google, Pandora and in-game ad platform Anzu.
The idea is to set up cookieless measurement partnerships with various companies, including Dish, Pinterest, Roku, Snap, Spotify and Twitter.
https://www.mediapost.com/publications/article/353981/how-kantars-media-measurement-supports-a-cookiele.html