Have you checked with rape crisis centers? I found a group that's supposed to meet Sept-May by calling the Washington DC rape crisis center. A men's group.
I attend Survivors of Incest Anonymous once a week. Some of the groups are single sex, usually women only, but the one I go to is open to any survivor who's not currently perpetrating. You have to contact them to get local meeting directories. They're on the web at siawso.org.
Hope that helps,
"Telemachos, your guest is no discredit to you. I wasted no time in stringing the bow, and I did not miss the mark. My strength is yet unbroken…"—The Odyssey, translated by W.H.D. Rouse