Creditors pull your credit report from TU, EX, and/or EQ.
They can also pull a FICO score from the CRAs with your report. Most commonly they use a FICO classic or an industry FICO variation score.
However remember that it is the information on your report that makes up your score. Many creditors do their own analysis of your report and have internal scoring models.
March2010 FICO® ~ 695 TU, 653 EQ, 697 EX