Educational Testing Service

Educational Testing Service (ETS) was founded in 1947. It is the world's largest private nonprofit educational testing and assessment organization. Its headquarters are in Lawrence Township, New Jersey, near Princeton.
ETS develops various standard tests in the United States for K–12 and higher education. It also administers tests in more than 180 countries, and in over 9,000 places worldwide. These tests include the TOEFL (Test of English as a Foreign Language), TOEIC (Test of English for International Communication), Graduate Record Examination (GRE) General and Subject Tests, and the Praxis test series. 
Many of these assessments are for entry to US undergraduate education and graduate schools. ETS also develops K–12 assessments used for accountability testing in many states, including California, Texas, Tennessee and Virginia. In total, ETS annually administers 20 million exams in the U.S. and in 180 other countries.