Does your training include a special a method or application for Client Care?
Is it one off training or continuous program with achievable targets? What is the impact after you change the mind set from customer to client?

If I was in your shoes, I would develop a bulletproof method/software/etc... for managing customer relations, train establishments and contract them for a period of time with full commitment to increase their overall client services.

There is no "best prospects", every business needs customer care..