From a doc I keep in the car for my wife and I to consult:
(may not be completely up to date)
"Charging stations included with OnTo (which are all free to use with the OnTo package with the 3 charge cards included):
BP Pulse card
Instavolt card
Shell Recharge card
You can’t use TESLA chargers, yet.
You need CCS or Type 2 connectors (there is a type 2 in the car) - check ZapMap
Shell Recharge Card (a number of these are mainly found on Europe mainland)
Alfa Power
Chargepoint
Char.gy (lower power on-street)
E-Flux
Engenie
ESB (Coventry and London)
EV Box
EVDriver
Fastned (UK-wide network)
Franklin LiFE
Geniepoint (UK-wide network)
Grønn Kontakt
Has To Be
Hubsta
Ionity (UK-wide network)
LastMileSolutions
Mer
NewMotion (UK-wide network)
Osprey (UK-wide network)
RAW Charging (Slough?)
Ubitricity - Use the Shell App
Vattenfall UK
Virta
Instavolt Card - only Instavolt (UK-wide network)
BP Pulse Card
CYC Charge Your Car (UK-wide network)
Chargemaster
BP Pulse (UK-wide network)
Not included with OnTo Subscription (But you can pay for these with contactless card, or use an app for which you’ve registered a payment method)
CPS (Charge Place Scotland) - but they are introducing an APP
Ecotricity/Gridserve - (UK-wide network) VISA, MasterCard, American Express, Apple Pay and Google Pay directly at the charging point (at a LOT of motorway services)
Source London
MFG EV
Charger net (south Dorset)
Swarco
PodPoint - lower powered charger at supermarket and car parks (often 7 or 11 kw) use an app, often free to use"