The most useful directory oriented around UK businesses full of valuable information. And by that I mean it's usable literally everywhere, since it works not only on desktop pc but also on a mobile phone or palmtops without any problems.
If you know any better website with as many data on UK companies - give me a call. I've been using it for quite a while and it never failed me a single time. Always spot on data and contacts for almost any corporation in the United Kingdom :)
BizStats provides a bunch of useful statistics and data which are often locked behind a paywall or at least require registrations on other websites... If you're dealing with other companies this is a must-have bookmark. 5 stars out of 5
BizStats is relatively easy to Handle through the mobile web browser so that's a very big advantage on the Start since I mainly use the Internet on my phone. Finding companies here is a Piece of cake, you can even Mistype a bit and the algorithm will get You to the correct page nonetheless.
Very big database of businesses over the UK. They've got surprisingly rich information on almost any company - including financial or staff info, which I was unable to find elsewhere.