British 12" disco/boogie I would recommend are (excuse spelling mistakes as this is off the top of my head):
Second Image - You're A Star (Polydor)
Freez - Southern Freez + Flying High (Beggars Banquet)
Ray Munnings - Funky Nassau/Jump In The Water + It Could Happen To You(Tammi)
Level 42 - Star Child (Polydor)
Hudson People - Trip To Your Mind (Hithouse and then rerecorded on Ensign)
Hi Tension - There's A Reason + Hi Tension (Can't Remember - Island?)
Atmosfear - Dancing In Outer Space + Motovation + Extract (Elite)
Disco Dub Band - For The Love Of Money (Movers 7" + White label 12"
Heatwave - Mind Blowing Decisions + Aint No Half Steppin (Epic)
David Joseph - You Can't Hide Your Love (Can't Remember) - I think he was British anyway
Bo Kool - Money No Love (Tammi)
I'm sure Ladyboy Grimsby will shame me by adding loads more I have forgotten or haven't even heard of.
He also contributed songs for the Jim Henson movie vehicle 'Muppets From Space'.