In South Dakota the mission of the Corporations Division of the South Dakota Secretary of States' office is to efficiently and accurately process and maintain corporate documents and to provide courteous and friendly one-on-one assistance to corporate owners as well as the public. Both non-profit and for-profit corporations must be registered with the secretary of state's office. Out-of-state corporations must be registered before doing business in this state. For detailed information on how to conduct business as a Sole Proprietor, General Partnership, Limited Partnership, Limited Liability Partnership, S-corporation, C-corporation, or Limited Liability Company we recommend that you get in touch with this office.

In addition to getting valuable information on incorporations and the State Uniform Commercial Code (UCC), you will most likely also be able to obtain the forms and fees required by the State to incorporate or form a business entity; how to file a Doing Business As (DBA) certificate, corporate records and other helpful information on conducting your business in the State. You can email them direclty at corporations@state.sd.us