How do I find an accredited provider who offers a specific qualification or unit standard?

Education and Training Quality Assurance Bodies (ETQAs) keep databases that contain, among others, their constituent providers and the unit standards and qualifications that they are accredited to offer. Therefore, you need to contact the relevant ETQA for the information. For a list of ETQAs see http://www.saqa.org.za/show.php?id=5742.