Pre-start up Market analysis

HI

I am looking to start a new venture in the local area . THis is primarily based on Healthcare recruitment services (more details on application) .
I have done a basic research but will need info on the following

Main competitors and their turnover/ income.
Target market analysis - including potential customer statistics and data.
Financial research - average charges that are charged by competitiors in the area.
Information from companies house regarding financial info about the franchisor firm.
anything else you may feel would assist with the startup .

thanks