Isn't that essentially just any existing systems integrator? There's plenty of those that are non-American.

That aside, governments have the resources to do this themselves, that's how they currently do so. Extending those services to local organisations would be a step in the right direction.

The thing about services and tooling is that for many orgs, there's not a whole lot you need, and once you're at a scale where you need tooling to manage that scale, you presumably have the resources for an operations team to deal with that, and can outsource the bits you can't do.

The org I work for outsources our public-facing website work to a web-design co, because that's their speciality, and not ours.

All of that is to say; I agree with you, but I think they already exist in the form of SIs.