Perhaps add the cum team and southlondonwingers and I think that is pretty much the extent of main sexy party organisers in the UK
This site is not for Swingers.
And for cum team, I think it is the same as Fuck club which is linked.
If there is a review on UKP for either of these places that suggests that they are a different sex party (ie paid for sex with escorts, not a 'might get lucky with swingers') please link it. Otherwise, no reason to put on punting wiki. Punting wiki is extension of UKP. Not interested in swinging or mentioning places that might have paid for sex just because it says so somewhere on the interweb. We trust UKP reviews, not much else.
We really want to add any Sex Parties missing, but really don't want to add rumour.