If you are looking for female company in UK then take a look at this site, but I have not tried it myself. It lets female students hook up with rich guys so could be an alternative to main-stream escort sites, especially if you are looking for a longer-term relationship. I am not sure I believe the claims about the number of users, but it's still an interesting development.
http://www.bbc.co.uk/newsbeat/article/35521859/a-quarter-of-a-million-uk-students-now-using-sugar-daddies-according-to-app