Your corporate name will only be registered in the state you incorporate in or in which you file an application as a foreign corporation. There may be other corporations with the same name in other states.

Most states now provide online searches available to the public for searching for a corporate name. Click the link below for a list of Corporate Filing Office websites by state.

For a listing of corporate filing offices: http://www.nass.org

If you do business in a different state, you will be considered a foreign corporation (which means a corporation from another state) and will be required to register in that state also. If you are doing only minimal business in another state, you probably do not need to do anything. However, if you are doing substantial business in other states, then you will be required to register as a foreign corporation in each additional state.

Each state has its own definition of what “substantial business” means. However, substantial business usually means that you have an office or own real estate in a state or that you have employees in a state or that you have some other form of substantial business dealings or contacts with people in that state. It is important to find out because there can be penalties for doing business in another state when you are not registered as a foreign corporation there.

Most larger companies will be registered as foreign corporations in the different states in which they do business. Many smaller companies, depending on the nature of their business, will only be registered in their home state.