Trade name

A trade name, trading name, or business name is a pseudonym used by companies that do not operate under their registered company name. The term for this type of alternative name is a "fictitious" business name. Registering the fictitious name with a relevant government body is often required.

In a number of countries, the phrase "trading as" (abbreviated to t/a) is used to designate a trade name. In the United States, the phrase "doing business as" (abbreviated to DBA, dba, d.b.a. or d/b/a) is used, among others, such as assumed business name^[1] or fictitious business name.^[2] In Canada, "operating as" (abbreviated to o/a) and "trading as" are used, although "doing business as" is also sometimes used.^[3]

A company typically uses a trade name to conduct business using a simpler name rather than using their formal and often lengthier name. Trade names are also used when a preferred name cannot be registered, often because it may already be registered or is too similar to a name that is already registered.

Legal agreements (such as contracts) are normally made using the registered legal name of the business. If a corporation fails to consistently adhere to such important legal formalities like using its registered legal name in contracts, it may be subject to piercing of the corporate veil.^[4]

In English, trade names are generally treated as proper nouns.^[5]