Examples of websites of organisations for certification of language competences:
ALTE
Centre international d'études pédagogiques
Le français des affaires et des professions
Goethe Institut InterNationes
Examples of websites of quality organisations for institutional accreditation:
EAQUALS
ACELS
AiSLi
CEELE
ISO
OPTIMA
NYESZE
PASE
QUEST
YALS
English in Britain
SOUFFLE