Again, many thanks for your answers and your time in looking at these results. I hadn't even noticed that the first listing hadn't actually claimed their place page (which does surprise me).
When you say that a company could achieve the same results by doing appropriate SEO on the local and organic level, I take it you mean SEO on the Places page and local targeted SEO on the main site?
Many thanks for your help and advice on this. I wanted to gather as much information regarding this area within the local search before committing to the client.
I have done a great deal of research about local search and SEO but was unsure of what was making Google actually rank these sites where they're ranking them.
Regards,
Michael