There are a few but none officially supported by the team.
I can point you in the direction of unofficial ones though: fomominers and equipool. They are both reliable shared MN services that offer $GENX masternodes.
I will check them, i was not aware that these pools offers shared masternode services.
I was hoping to see GENX in common reputable Masternode Hosting services in the MN Market. But none of them added GENX upto this time.