Unless it's a public company/non-profit they don't have to make any of this information public in most(all?) US states. Usually all you have to do is make public the name of the company and the registered agent(typically the lawyer you hire to receive legal notices for the company).
ah right crumchbase - founder with a "crunchbase rank" in the two hundred thousands range, stanford-stanford-harvard. there is something about stealth combined with valuations.. can't put my finger on it..
They're building a lot of physical hardware, hence the need for cash (it was a pretty huge seed round) - He's a cool dude for real, very decent human, curious what your concern is?
They appear to be a private company: https://www.crunchbase.com/organization/earth-force-technolo...