eHarmony

eHarmony United Kingdom originally began in 2000 and is now one of the top internet relationship services suppliers.

They have a bespoke Compatibility Matching System that allows members identify compatible persons with whom they are likely to be able to enjoy a long-term relationship.

They appear very geared towards individuals seeking long-term relationships. Their marketing materials mention this a lot (apparently in the US an average of 236 eHarmony members marry every day!) and they have an in-depth, private psychological test that helps them locate you compatable matches, so if you are ideally looking for a long-term partner then this could well be the best website for you.

I note they also appear to be very prepared for individuals who are a little shy, or unsure on the subject of how to talk or behave on the dating scene, as they have guides and options that help you communicate in the early phases of a relationship.