You can start by checking the local hospitals and clinics in your area to see which has good representation, then you can make a short list from there.

In my life as a corporate slave we've used Medicard, Maxicare and Asian Life; so far i'm happy with Maxicare and Asian Life in terms of servicing however another factor is the type of plans you will avail.

Another perk you can study is establishing a managed retirement plan fund for your employees. In the case of the company i work for we course these through the Trust Units of the banks we deal with.