Listing all service providers below [app_service_providers]

Our client is asking if all service providers can be listed immediately beneath the drop-down that shows with [app_service_providers].

Here's a good example:
http://sunlight.wpengine.com/readers/clairvoyant-psychic/?app_provider_id=11

That shows one service provider, but it's not easy to browse the whole list, so they were hoping to have them all shown right away — images, names and descriptions — and then let the site visitor choose one from the dropdown just as it exists now.

How might this be possible?

(This question is relatively minor compared to the others ones I submitted, but I wanted to ask.)