A highly effective catalyst system, siloxide Rh complex [Rh(cod)(OSiMe3)](2) immobilized in 1,2,3-trimethylimidazolium methylsulfate, enabled allyl glycidyl ether to be hydrosilylated with 1,1,1,3,5,5,5-heptamethyltrisiloxane to give epoxy-functionalized (poly)siloxanes in > 90% yield. These (poly)siloxanes were used to prep. a whole range of cationic, anionic, and amphoteric surfactants. A basic technology design was developed for prepg. suffonate derivs. (anionic surfactants.