 The N.W.O.B.H.M. Encyclopedia by Malc Macmillan lists more than 500 recording bands established in the decade between 1975 and 1985 and related to the movement . Probably as many bands were born in the same time interval , but never emerged from their local club scene , or recorded nothing more than demos or limited pressings of self @-@ produced singles . The disinterest of record labels , bad management , internal struggles and wrong musical choices that turned off much of their original fan base , resulted in most groups disbanding and disappearing by the end of the decade . A few of the best known groups , such as Praying Mantis in Japan and Saxon , Demon and Tokyo Blade in mainland Europe , survived in foreign markets . Some others , namely Raven , Girlschool and Grim Reaper , tried to break through in the US market signing with American labels , but their attempts were unsuccessful . 
