E-2 Visas
Generally speaking, this visa is used for the creation, purchase and/or development of a business and do not require large amounts of capital investment. Spouses and minor children get E status as well. This is for citizens of countries with which the US maintains treaties of commerce.
EB-5 Visas
This type of visa allows the investor and his qualifying relatives (spouse and minor children) to apply for conditional permanent resident status in the United States of America. The standard minimum investment amount in this program is $1.8 million. For investors seeking to invest in a new commercial enterprise that will be principally doing business in a TEA the minimum investment is $900,000.
L-1 Visas
Is used to facilitate the transfer of managers, executives, and specialized employees from an operating foreign enterprise to an office, affiliate or subsidiary which is doing business in the United States. This visa may lead to permanent resident status in the United States of America. Spouses and minor children also qualify.
B-1/B-2 Visas
Is used for many business purposes and even for work in the United States of America under certain circumstances for employees of principals.