Try a google search for the sites, or click the banners here as they appear (most advertise on PPRuNe). The names of the schools are on the CAA website, but the format is not simple to use. Working from memory:
Modular Full-Time (in UK)
Bournemouth (BCFT) (click banner above)
Cabair
Glasgow College of Nautical Studies
London Guildhall
Oxford (OATS)
Modular Distance Learning
BCFT
Bristol Groundschool
Cabair
GTS
London Guildhall (?)
OATS
Anyone remember any more?
Best of luck,
Send Clowns
BCFT