I don't think it is that simple.
They are a known scam out fit, operating under multiple names and ripping customers off. There are countless cases online of customers being scammed by using these sites. However, seemingly they create a new domain, and get ranked.
Thats fair enough, if they are able to do that they should be SEOs, however, its a clear scam, with replicated sites. Sites with no links, poor content and new domains - great SEO 
And is that in-line with what is perceived to deliver rankings? Egol, I read many of your posts on here, and if I was to ask you if I should do what they a have done with a site, I would guess you would say no - you need to create great content, lots of really great content and post it directly to your own site etc etc - right?
So, how can a site, or rather multiple sites like this, with zero content, zero links (some have anchor text rich links from forums) and new registered domains, mostly on the same server, beat long established, big name companies in the UK (and no, not sites I have worked on) within days of registering a new domain, and then, not only stay there, but move up the rankings?
Its not that simple.
I agree with Irving, "It's just a matter of time until they get penalized." - lots hope its not that long.