The TOEFL (Test of English as a Foreign Language) exam is organized by:
Educational Testing Service (ETS)

ETS is a non-profit organization based in Princeton, New Jersey, USA. They are responsible for:

• Developing and administering the TOEFL test

• Scoring and reporting test results

• Setting test dates and locations

• Providing test preparation materials and resources

ETS also offers other tests, such as the GRE (Graduate Record Examinations) and the Praxis series (for teacher certification).
The TOEFL test is widely accepted by universities and colleges in the United States and other English-speaking countries as proof of English proficiency for international students.