Quality certifications

 Byron Tree srl holds a UNI EN ISO 9001 Certification of Quality. In addition to guaranteeing that our course procedures respect international standards, this certification serves as yet another recognition of our ongoing commitment to excellence in all the services we provide.  As a holder of ISO certification, Byron has been selected on multiple occasions as a partner to provide training courses financed by the Inter-professional Equal Opportunity Funds. Recipients of these courses have been extremely satisfied, not only with the service provided, but also with the administrative aspects linked to course organization.

PLIDA – Center for Certification

Byron Tree is  Official Centre for PLIDA certification which evaluates skills in Italian as a foreign language according to a six-tier scale, from A1 to C2 in ascending order of difficulty, corresponding to the levels established by the European Council (Modern languages division: cf. Quadro comune europeo di riferimento per le lingue: apprendimento, insegnamento, valutazione – Common European Framework of Reference for Languages: learning, teaching, evaluation, published in Milan by La Nuova Italia – Oxford, 2002).

The PLIDA certificate for level A2 or above  is valid for the issue of a long term residence permit (permesso di soggiorno).

Teacher Training

 School recognized by Trinity College London to undertake the CertTESOL course. Together with CELTA the only certifier recognized internationally for teacher training. The school is audited whenever a course is held.

Centro Autorizzato TOEFL®

CTAS_logotype-4c In order to attend one of our test sessions, students must sign up through the official TOEFL website ( Here they can see the calendar of available test dates in Rome and choose our Center as their preferred test location. The Internet-based test is administered in our school’s computer-equipped classrooms located at Via Luca della Robbia 22, in Rome’s Testaccio neighbourhood.


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