Definition of 'Credit Bureau'
An agency that researches and collects individual credit information and sells it for a fee to creditors so they can make a decision on granting loans. Typical clients include banks, mortgage lenders, credit card companies and other financing companies. Also commonly referred to as consumer reporting agency or credit reporting agency.
Investopedia explains 'Credit Bureau'
A credit bureau doesn't decide whether an individual qualifies for credit or not. It only collects information that it considers relevant to a person's credit history and habits.
The three main credit bureaus in the United States are Equifax, Experian and Trans Union.