There are dozens of different credit scores used today. Not only are there three major credit bureaus (TransUnion, Experian and Equifax), but each one has a database of consumer information and a scoring system. In the United States, every consumer has at least 60 different credit scores, though most never use nearly that many. FICO scores are used by the majority of lenders, so while it's important to monitor your overall score, keep an eye on your FICO score as well.