Generally the purpose of registering a foreign corporation in a state is to have access to the courts of that state if it needs to, e.g., sue a vendor. You're a

Generally the purpose of registering a foreign corporation in a state is to have access to the courts of that state if it needs to, e.g., sue a vendor. You're almost always going to be able to use your home state's court (although jurisdiction may be harder to obtain) or a federal court depending on the facts. Also, registering in a foreign state serves as somewhat of a soft "trademark" in that another entity of the same name cannot be formed in that state. In short, foreign registration may not actually be required under many circumstances. If it is, you can always incorporate at home and re-domicile concurrent with the closing of a funding round on the investor's dime.