E-2: the treaty investor visa
The E-2 lets a national of a country that has a commerce and navigation treaty with the United States live in the US to develop and direct a business they have invested in substantially. There is no fixed minimum; the investment has to be substantial relative to the business and at risk. It is granted in increments up to 2 years at a time and can be renewed indefinitely while the business operates. It does not lead to a green card by itself.
Education, not legal advice.
Talk to an attorney who does E-2 work