Who TEFL UK is
TEFL UK is a British online TEFL provider. It says it has trained more than 60,000 graduates who now teach in over 60 countries, and its course pages show a 4.7 out of 5 rating from 900+ reviews on Reviews.io. Like every provider's own figures, treat those as marketing rather than independent proof — but they are consistent with a large, long-running business.
It sells a ladder of online courses, but most people choose between two: the 120-hour Professional TEFL and the 168-hour Level 5 TEFL.