Thread:B214/@comment-27083298-20170916201146/@comment-29963364-20170917030423

We know that Sairaorg at least has Demonic Power, because he's able to travel using the Teleportation Magic Circles (in the early volumes, Rias told Issei that you need a bare minimum amount of Demonic Power to use the Magic Circle).

As for if he's able to actually use his Demonic Power, the only hint of that is the Magic Seals placed on his body to hold back his strength (he removed these seals during his fight against Yuuto, Xenovia and Rossweisse). However, these seals might have been placed on him by someone else, and they just undo themselves automatically when he wants them to.

See what other information you can dig up post what you find.