Doing business as.
A common abbreviation used in real estate listings and classified advertisements.
Doing business as (DBA) refers to a "fictitious name" or business entity name that does not carry the name of the principal. Example: Your name is Smith, but you choose to call your business "Speedy House Painting" and not "Smith House Painting". In the United States, fictitious names must usually be registered at the state level, with the Secretary of State or some other such office. The term "fictitious" is used in a legal sense and does not imply that the business is dishonest or disreputable.