Here's a lead(if already known...sorry): https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001705445&owner=exclude&count=40&hidefilings=0 https://www.sec.gov/cgi-bin/browse-edgar?CIK=0001719323&action=getcompany That's two SEC reporting Co's that have no market combined with a "dark" public Company that has a market.