The International English Language Testing System, or IELTS, is an international standardised test of English language proficiency for non-native English language speakers.

Test of English as a Foreign Language is a standardized test to measure the English language ability of non-native speakers wishing to enroll in English-speaking universities.

The Graduate Record Examinations is a standardized test that is an admissions requirement for most Graduate Schools in the United States. The GRE is owned and administered by Educational Testing Service who created it in 1949.

The Graduate Management Admission Test is a computer adaptive test intended to assess certain analytical, writing, quantitative, verbal, and reading skills in written English for use in admission to a graduate management program, such as an MBA.

Pearsons Test of English