I saw some reasonable looking Tern bikes on Evans website - not sure how long they've been on there.
Some are more expensive than a Brompton, and there's even one with drop handlebars and some blue colouring which should make @ianrauk feel at home.
https://www.evanscycles.com/tern-verge-x18-2018-folding-bike-EV322463
Yep seen that bike already as pointed out in a different thread by @StuAff