By industry. 1  List of airlines of the United States. 2  List of common carrier freight railroads in the United States. 3  List of department stores of the United States. 4  List of independent bookstores in the United States. 5  List of restaurant chains in the United States. 6  List of supermarket chains in the United States.
Getting EIN. LLCs may get a tax ID number from the IRS by using the IRS website, or by speaking with an IRS representative at 800-829-4933. An LLC may get a tax ID number by faxing or mailing Form SS-4 to the IRS.
Only sole proprietorships are not required to register. The filing forms are available online from the Arizona DOR Corporate Filing Forms Section. 2. Obtain a federal employee identification number. You must have a federal EIN to get an Arizona state tax ID number unless you are the sole employee of the business. Sole proprietors with no employees may substitute their Social Security number. To apply for a federal EIN, you can apply online at the Internal Revenue Service or call the IRS at 800-829-4933.