Sts. Michael, Gabriel, and Raphael are the only three angels mentioned by name in the Scriptures, and they all belong to the same choir of angels: The archangels.
From St. Dionysius and St. Gregory the Great, we learn that there are nine choirs of angels which are gathered into three sets of three. But where are the archangels in this list? Are they toward the top of the bottom? The answer may surprise you!