cochlear implant and radio aid testing

I have a student who has a cochlear implant and uses a radio aid and this needs electro acoustic testing with the CI using a ‘test box’. This ensures the radio frequencies are right and the levels of the radio aid are compatible with the CI and requires a technician to carry it out. At college we don’t have the required equipment or expertise to carry this out so I need to find an external provider. Can you suggest who I could ask about buying in this support?