IAME (Italian American) are a dedicated karting manufacturer closely tied with Parilla (Another karting brand, not to be confused with aprillia). They’ve been around karting almost since it’s beginning.
Rotax is owned by BRP, a huge recreational product company with brands including SkiDoo. Jetskis, snowmobiles and all sorts of fun stuff.
Briggs are just over 100 years old I think, lots of different products, engines, power washers, generators. Briggs Racing, which is where the 206 lives, is more-or-less a marketing\awareness program for Briggs’ brand.
While we’re here…
Vortex is a karting only brand that popped onto the karting scene in the mid 90’s.