Based on sales, seems Sedo is moving the most .co.uk names. Looks like Sedo and Uniregistry.
eagleview.co.uk 2,000 USD 2017-10-11 Sedo
euroline.co.uk 3,000 USD 2017-07-30 Uniregistry
etm.co.uk 1,284 USD 2017-07-02 DomainLore.co.uk
express24.co.uk 3,500 USD 2017-04-27 Uniregistry
exclusiveholidays.co.uk 4,000 USD 2017-02-24 Uniregistry
eyelashes.co.uk 10,000 USD 2017-01-18 Uniregistry
explainervideo.co.uk 180 USD 2017-01-16 Uniregistry
ebackgroundchecks.co.uk 2,600 USD 2016-11-03 Flippa
esports.co.uk 24,470 USD 2016-10-21 Sedo
businesscafe.co.uk 223 USD 2017-11-10 Sedo
countingsheep.co.uk 459 USD 2017-10-29 Sedo
supplyanddemand.co.uk 4,594 USD 2017-10-24 Sedo
litecoin.co.uk 2,693 USD 2017-10-23 Sedo
mobilemania.co.uk 2,250 USD 2017-10-16 Sedo
eagleview.co.uk 2,000 USD 2017-10-11 Sedo
4u.co.uk 1,031 USD 2017-10-08 DomainLore.co.uk
livingearth.co.uk 2,500 USD 2017-09-28 Sedo
rfrb.co.uk 6,710 USD 2017-09-26 Sedo
getaquote.co.uk 6,039 USD 2017-09-26 Sedo
deity.co.uk 2,354 USD 2017-09-26 Sedo
complete.co.uk 2,500 USD 2017-09-25 Sedo
massage.co.uk 36,180 USD 2017-09-24 BuyDomainNames.co.uk
zeroth.co.uk 2,150 USD 2017-09-22 Sedo
kaizin.co.uk 14,000 USD 2017-09-17 Uniregistry
newcar.co.uk 1,719 USD 2017-09-17 DomainLore.co.uk
contactnow.co.uk 3,287 USD 2017-09-11 Sedo
gloriousgangsta.co.uk 5,000 USD 2017-09-07 Uniregistry
debtsense.co.uk 3,250 USD 2017-09-03 Private
mums.co.uk 3,865 USD 2017-08-31 Sedo
circa.co.uk 7,761 USD 2017-08-30 Sedo
wefix.co.uk 5,964 USD 2017-08-30 Sedo
waldo.co.uk 3,750 USD 2017-08-28 Uniregistry
nosings.co.uk 450 USD 2017-08-25 Uniregistry
kilndriedwood.co.uk 128 USD 2017-08-24 Sedo
heathrowexpansion.co.uk 2,558 USD 2017-08-23 Sedo
homerun.co.uk 6,000 USD 2017-08-22 Uniregistry
industrialfloorcoatings.co.uk 450 USD 2017-08-22 Uniregistry
highroller.co.uk 6,790 USD 2017-08-21 Sedo
orlando.co.uk 12,620 USD 2017-08-18 Sedo