What is considered a significant investment for the purposes of an E-2 visa?

One of the requirements for the E-2 Treaty Investor visa is that the investment must be significant. This is generally believed to be approximately $100,000, but there is no strict rule. It is possible to obtain the visa with a smaller amount, and it is also possible for a case with an investment exceeding $100,000 to not be approved. The outcome will depend on the reviewing authority and factors such as the nature of the business being invested in.