Form a company and sponsor yourself
Open a US subsidiary and obtain visas for executive personnel
E-2 Treaty Investor Visas
Requirements vary by country
Proposed Visas in the 2013 Border Security, Economic Opportunity
and Immigration Modernization Senate Bill:
Entrepreneurial visas, similar to EB-5 but on a smaller scale.
Buy a home and retire in the US ($500,000 real estate investment would be required)