How do you get copy of business license?

You can get a copy of your business license from the Licensing Office where you obtained the license. Since licenses are obtained from State, County and City Licensing Offices depending on the type of business, a good website to use is "Business License Records Resources." From that free website, you'll find either a direct link or contact information for each State and County "Business Licenses" Office. Many states offer business license searches by name.