In addition, it is not possible to establish who the WBL providers might be or how they are publicly funded, as there is no central repository for this information.
Yn ogystal, nid oes modd cadarnhau pwy yw'r darparwyr dysgu seiliedig ar waith na sut y cânt eu hariannu'n gyhoeddus, gan nad yw'r wybodaeth hon yn cael ei chadw mewn man canolog.