Persons opening a sole proprietorship OR Corporations/LLC's "Doing Business As" in Westport are required to file a Trade Name Certificate. The cost is $10 to record, $3 for a certified copy and $5 if we notarize each signature; Checks made out to the Town of Westport; please use this form.  and send in with your payment. 

Corporations, LLC and partnerships are required to register with the Secretary of State.  See this page for complete information.