Firstbase.io

Firstbase.io is a platform that forms a company for you in the United States remotely — typically an LLC or C-Corp in Wyoming or Delaware. It's built by a team that has already helped launch tens of thousands of companies for founders worldwide, and it targets people outside the US in particular: European SaaS builders, agencies, freelancers, and startups that want a US entity for customers, payments, or investors.

It works as a single done-for-you bundle. You fill in a simple form (company name, type, co-founders), Firstbase files the formation documents with the state, obtains your EIN (tax number), helps open a US bank account, and delivers all your post-formation documents. The whole time you can see in the dashboard what stage you're at and what's still missing.