The Powers are one of the nine choirs of Angels, and belong to the second sphere.
"The first order of the second sphere are those beings who have been known as powers. They are the bearers of the conscience of all of humanity, the keepers of your collective history. The angels of birth and death are in this category. They are able to draw down and hold the energy of the divine plan the same way trees draw down the energy of the Sun. In this way, the powers can send all of you a vision of a world spiritual network. Just as you have a heart, liver, kidneys, and other organs in your body, all of the worlds religions are different organs in the emerging spiritual body of this planet."
(Ask Your Angels)