Market analysis and Branding for a new service

Hi – I’m looking to build a new service online. To do this, I need to fully understand the current market – a competitor analysis and where my service would best fit in. I would like an analysis and suggestion of good company brand names that are available with the domain name and that have been checked against companies house in the UK and internationally – if deemed necessary.
I would like this work to be undertaken and completed asap.