Welcome to the UK
I get on average (after passing a fairly comprehensive antispam filter set) 1-2 emails a day that look like they originate from a fully legitimate UK company. They are extremely well done. No grammar errors, professionally drafted letters, content looks 100% legit. The only give-away is uninteligible one-off domain name under co.uk.
I have not noticed any spears in them - they so far do not have attachment and I never visit any of the links advertised, but I would not be surprised if some of them are spearfish too.