Unfortunately nearly all comparison sites, for all products not just broadband, only include suppliers who pay to advertise and be represented. For broadband this is extremely noticeable, with only the biggest few being shown and far better smaller ones not even being looked at.
If you look at the Which list of ISPs reported on,
see this page you will see it is quite limited. It also fails to pick up on simple facts such as Tesco being C & W based, Madasafish, Greenee and Waitrose all being Plusnet-owned and in effect fully absorbed, with Plusnet itself being of course BT-owned but quite different in its offerings. Unless this sort of thing is covered in the detailed reports.
It also says, (if you look at the 5 pages of packages), nothing about the considerable number of resellers using Be, C & W and TalkTalk wholesale connections. It says "Exclusive to 1 retailer", which I expect is universally true - but is somewhat misleading when the resellers often offer a far superior service on the wholesale services.
Note you can have a trial run there for £1. I didn't look at the detail, and I expect you need to set up then cancel the full payment instructions, but you do have that option.
On the TBB comparison, if you rest the cursor on a bar it gives you the number of votes cast. The rating you can give is 1-5 stars. Some are tiny, some are in the thousands.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost.
Internet connection - IDNet Home Starter Fibre.
Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.