I don't know of a company doing this, but a group of awesome developers does this in the GraphQL + TypeScript Open Source Libraries space with great success (As in useful libs, I don't know how they do economically but prob great or fine!)
It's actually called the-guild.dev, they just don't promote much I think.
They're the creators of GraphQL Modules, graphql-tools, graphql-code-generator etc...
I'm also a small contributor to an Authentication/User management library called AccountsJS https://www.accountsjs.com/ (Which uses gql-modules) under the hood, and the-guild members are active contributors too (although not exclusively)
I would love to some day become a good enough developer to be part of that team/org/guild!
It's actually called the-guild.dev, they just don't promote much I think.
They're the creators of GraphQL Modules, graphql-tools, graphql-code-generator etc...
I'm also a small contributor to an Authentication/User management library called AccountsJS https://www.accountsjs.com/ (Which uses gql-modules) under the hood, and the-guild members are active contributors too (although not exclusively)
I would love to some day become a good enough developer to be part of that team/org/guild!