The British Council, IDP: IELTS Australia and Cambridge Assessment English jointly own IELTS and the test is developed to provide a fair and accurate assessment of English language proficiency. IELTS is the world’s most trusted English Language test for higher education, work, and global migration. It’s recognised globally by over 10,000 organisations and is the only test that’s accepted by all immigration authorities that ask for an English test. The four-skill test is delivered at over 1,600 locations in over 140 countries and offers choice to people to take the test either on paper or computer.