Pooley's: 942 airfields
AFE: 960 airfields
UK AIP: 126 airfields
Thanks, that's an interesting comparison. Now how does SkyDaemon chime in? How many UK aerodromes does it mention/show?
Edited to add: there is a website called ourairports.com that mentions 536 UK aerodromes, plus another 142 tagged "closed". It surely isn't entirely up to date, but for being totally free it might be worth looking into. Be warned however that a good deal of those 536 are helipads.