Started in 1991 in Houston, Texas, Testmasters offers classroom courses, 1-on-1 courses, online courses, and books for various standardized exams including the the EIT & PE Professional Engineering Exams, GMAT, GRE, LSAT, SAT & PSAT, ACT, Subject Tests, ISEE and HSPT in many states around the U.S. and select cities internationally. Testmasters has become one of the largest and fastest-growing educational companies in the world. Since its inception, over a hundred thousand students have taken courses from Testmasters.