mojeek

A world-wide and UK search engine founded, developed, run and hosted exclusively in the United Kingdom.

Mojeek is one of just a handful of rare search engines that crawl the web and produce their own unique search results, in other words, have their own searchable index of web pages and don't retrieve results from any other engine, they include (excluding non-english language engines):

Check them out, or continue to Mojeek's UK Search Engine.

Other small engines but at least their own results:

Nearly mentions: