Well of course all these groups have a very vague way of defining member, but consider this. The SWP claims just over 7,000 members, with about 3,000 paying subs. The SP claims around 2,000 members and I think probably has a higher percentage of people paying subs than the SWP, just under 1,000. So you've got, in theory anyway, 9,000 right there just with the two biggest groups. so yes in theory there are 10,000+ members of trot organizations in the country. It's quite a substantial number when you consider just how awful they are for the most part.