Official GRE Super Power Pack About the Author Educational Testing Service (ETS) is a private, nonprofit organization devoted to educational measurement and research, primarily through testing. Founded as a nonprofit in 1947, ETS develops, administers, and scores more than 50 million tests annually―including the TOEFL® and TOEIC® tests, the GRE® tests, and The Praxis Series® assessments―in more than 180 countries, at over 9,000 locations worldwide.