The "no credit check loans" I've looked at on t'internet are all unsecured loans. The adverts themselves refer to "no credit check loans" and then somewhere else on the page refer to "bad credit loans." It doesn't make much sense to me - if they don't check credit then why are they offering loans for people with bad credit?
Looking on a google search you get compenies such as Yes Loans and Norton Finance. These are OK companies to deal with but will charge a high rate and their service is generally poor.
I would say that they are all of similar quality and stature. Just don't go for one of these comanies that charge an upfront fee, such as a search fee - these are non-refundable and these companies generally don't find you anything - except for �50 poorer.