Watch Criteo's Pierre Souchay showcase how his ad serving company, Criteo, uses Consul for service discovery and as a part of their own custom HAProxy + Consul Connect based service mesh.
Criteo has written a lot about their usage of HashiCorp Consul. This presentation serves as the latest update as of September 2020. Other recent case studies, adding more color around this video, include:
Self-Service Discovery at Scale With Consul at Bloomberg
How Roblox Developed and Uses the Windows IIS Nomad Driver
How We Used the HashiStack to Transform the World of Roblox
Consistent Development and Deployment at Comcast with Terraform