File with the appropriate federal, state, and local governmental agencies. Depending on the business purpose of your LLC and the jurisdiction in which you organize, you may have to file additional forms relating to LLCs with certain governmental agencies. Each industry is regulated differently—as is each local jurisdiction—and so it is best to ask an attorney or accountant for assistance in this matter.
Your name must be unique, and not deceptively similar, to any other trademarked name or business. It is also required that your name not be used to intentionally misrepresent the products or services you offer. For LLCs, nearly all states will also require you to add a signifier of your limited liability status, such as "LLC" or "L.L.C." to the end of your company's name. You may be able to operate under a name other than your formal LLC name by applying for and using a dba.
A business entity is an entity that is formed and administered as per corporate law in order to engage in business activities, charitable work, or other activities allowable. Most often, business entities are formed to sell a product or a service. There are many types of business entities defined in the legal systems of various countries. These include corporations, cooperatives, partnerships, sole traders, limited liability companies and other specifically permitted and labelled types of entities. The specific rules vary by country and by state or province. Some of these types are listed below, by country. For guidance, approximate equivalents in the company law of English-speaking countries are given in most cases, for example: