The Trinity College TESOL Certificate & Diploma

Qualify to teach English with our internationally-recognised Trinity Cert TESOL course. The qualification is accredited by Trinity College London, and is accepted by the British Council as an initial TESOL or TEFL qualification for teachers in its accredited teaching organisations in the UK and overseas. It is equivalent to the Cambridge CELTA qualification.

This highly practical course will give you all the skills and techniques you need to start a rewarding career in TEFL. We can help with finding accommodation near our schools in London – Greenwich, or Brighton, and offer guidance on how to obtain your first teaching jobs. You may even choose to work for us – as a large group of language companies we offer many of our Cert TESOL graduates jobs at our year-round schools and summer centres.

Course Length 4 weeks (Intensive- Greenwich only)

12 weeks (Part-time- Brighton only)

Max. class size 12
Entry Level Advanced /C1/ IELTS 7.0 Minimum age 18 years
Start dates 11 intensive courses (Greenwich)

and 3 part-time courses ( Brighton) through the year

For more information, course dates and prices, visit


The Trinity Diploma in TESOL (Dip TESOL) is a course for experienced EFL teachers (at least two years’ experience) who are seeking a high-level, internationally-recognised qualification that will improve their teaching and help further their career in EFL / ESOL. It is equivalent to the Cambridge DELTA.

The course is flexible: A 9-month online training programme with interactive tasks, exam support and course tutorials delivered by our professional team of experienced Dip TESOL trainers. Once this has been completed, there are three opportunities each year to attend the 2-week onsite component (at London – Greenwich) for face-to-face training and tutorials, observed teaching practice and formal assessment. You will have up to three years to complete all components of the course.

Course Length  

9 months online training and

2 weeks onsite (Greenwich)

Max. class size 20
Entry Level Minimum 2 years’ experience as an EFL teacher Minimum age 18 years
Start dates 2 intakes per year for online training

Schools offering
The Trinity College TESOL Certificate & Diploma