I would imagine that its someone who builds a profitable offering on the back of OSS and doesn't give back anything.

Yes, exactly.

So every person who uses Linux for work and doesn't make a kernel contribution is a freeloader? A plant shop keeper running Linux on their work computer is a freeloader? I don't think that's even the intent of the GNU movement let alone all of open source.

It sounds like there are companies selling Terraform with a wrapper on top and not paying Hashicorp anything.

I know of precisely zero such companies, and I can't imagine how such a company would even have customers in the first place when Terraform already has a $0 pricetag.

I could maybe understand this for Consul or Vault, since those are actual hostable services that could probably be resold - but I don't know of anyone reselling those, either.

Maybe Gruntwork.io, makers of Terragrunt, I think?

I always just stuck to vanilla Terraform but recall coming across them at some point.

I wouldn't call them a competitor by any stretch; more like a partner. A Terragrunt codebase just wraps Terraform, with the same exact backends (including Hashicorp's SaaS offerings) and the same exact providers and everything.

How long before HashiCorp integrate Gruntwork’s “solution” into their own Terraform codebase I wonder?

Pulumi, scalr, env0, spacelift, digger, controlmonkey, terrateam, terrakube

Dozens of them out there I wonder with great interest which one of these got hashicorp worries about their wallet enough to make this move. Could it be env0 raising 42M earlier this year?