Not only are these companies using TiDB, they're also contributing to it as you can see in this recent blog post: https://medium.com/@ray.paik/tidb-8-5-is-here-

Not only are these companies using TiDB, they're also contributing to it as you can see in this recent blog post: https://medium.com/@ray.paik/tidb-8-5-is-here-b2ca09e972d5 https://medium.com/@ray.paik/tidb-8-5-is-here-b2ca09e972d5