The Flightdesign CTSW and (slightly older and slower but very similar) CT2K are microlights in the UK, rather than LSA as in the USA (both categories are basically national-only).
There are some excellent schools in the UK training for the NPPL(M) in the CTSW - I've no personal link apart from getting on well with their CFI, but MSA at Damyns Hall is one such, and very well regarded.
G