Starting a Business: Step 6

Registering Your Business

All companies that want to do business in New Hampshire must register with the Secretary of State’s Corporation Division. You can download the required forms to register your business.

All questions about registering your business may only be answered by the Secretary of State’s office at Corporation Division, Department of State, 107 N. Main St., Concord, NH 03301-4989. General Information: (603) 271-3244. Corporate Information Line: (603) 271-3246. Corporation Division Email Address:


You can also find information on the Secretary of State’s website:

  • Visit the Frequently Asked Questions page for answers to many questions you may have on how and why to register your business.

  • Visit the Business Name Lookup page to check on the availability of a business name. (This is an informational check and final determination of the availability of a name is made by the Secretary of State’s office at the time the completed paperwork is finalized.)

  • Visit the Corporation Division, Home Page to learn more about the division’s responsibilites and to view all their links.

  • Visit the Contact Information page to find out how to write, call, or email the Corporation Division.


If you have additional questions about starting a a business, please contact Mark Laliberte  at the New Hampshire Division of Economic Development by calling (603) 271-2591.