We have a bunch of customers listed in the press release. [0] Our managed cloud installation is about the size of our large customers. NVIDIA launched their latest world-scale user facing service on top of FaunaDB.
Personally I'm more interested in helping people writing fresh apps use FaunaDB, because while we can solve enterprise problems at scale, it's the greenfield apps that will be able to best use our advanced features.
[1] https://fauna.com/blog/escape-the-cloud-database-trap-with-s...
[2] https://hackertimes.com/item?id=13877223
[3] https://serverless.com/blog/faunadb-serverless-authenticatio...