I'm surprised that Eats is doing more revenue than GrubHub and much more revenue than Caviar.
The Q4 numbers I see:
Uber Eats: $165 million Grub Hub: $205 million*
* https://investors.grubhub.com/investors/press-releases/press...
GrubHub's 2018 Revenue was 1.0B (https://investors.grubhub.com/investors/press-releases/press...)