Ask HN: Code signing certificates, and Stripe Atlas

The good news is we're past the era where you have to have a D&B number and a reverse DNS mapping.

You should be able to get away with a bank statement listing the name of the LLC, any local DBA (fictitious name registration) and whatever your secretary of state gives LLCs to prove they're registered.

I'm sure they won't like it because it means a human has to get involved (probably a couple humans) for a few minutes which means their RA isn't the cash cow someone promised management it was going to be. (Having worked for three CAs, I have never known one to be a profitable profit center.)

You might've selected a higher verification level than you need, if not, you may be able to get an attorney/CPA to confirm existence. I vaguely recall needing to do something similar for domain verification and the verifier had a template for use.