Board Thread:Warhammer 40k General Discussion/@comment-8346920-20140206013644/@comment-8881468-20171110013502

well, in the cain novels, it is said that the guard has female regiments and that mixed regiments are fairly rare.

so we can assume that any planet, who does not field  soleley male troops by design (and only vostroya and maybe Attilla come to my mind as far as that goes) will field all female units.

Cadia, Elysia,Krieg,Valhalla, Catachan

That is the general fluff, now if you look at actual stories about such regiments, to my bet knowledge: GW has not published anything in that regard.