When I started out in the csa field 35 years ago, there were mostly therapists who only dealt with child and adult victims/survivors. Most of the therapists who worked with perpetrators back then came from the ranks of victim advocates. More recently, with the rise of treatment programs for abusers, students could get into the programs geared for abusers without spending time directly with victims.
However, the field has evolved to understanding that PREVENTION is the key to ending csa. Primary prevention is like vaccinating people before they get the disease. Programs like Child Assault Prevention target children in schools to keep themselves safe and educates parents to prevent abuse from happening in the first place. (see http://www.eirc.org/website/child-assualt-prevention-cap/
for more info.)
Secondary prevention is the treatment of those who have been abused to help ameliorate the symptoms and treat those who have been identified. Everyone here will recognize that the experience of being abused has caused problems in their lives that hopefully can be treated so the abuse does not interfere in healthy functioning and relationships. Whether treating child or adult victims, the object is to restore normal/healthy life to the person and prevent dysfunction. Organizations like MaleSurvivor and others are adjuncts to therapy and may not be as intensive as individual or group therapy.
Tertiary prevention is the treatment of abusers to help them not to abuse others again. Another part is to help them understand and overcome the abuse issues, if that is part of their history. Although many abusers have victimization issues in their lives, most don't and of course, being abused does not make one more likely to abuse others. And research over the years does show that treating abusers works to prevent more abuse. (Recidivism rates for adolescent and adult abusers are much lower than public opinion believes. See www.csom.org
for more info.)
I started out in child protective services over 40 years ago with a caseload of children who were abused (some sexually) or neglected and wound up specializing in treating kid victims, adult survivors, and adolescent and adult perpetrators. This gave me the understanding that victims/survivors had nothing to do with the abuse and that treating abusers would help prevent more victims.
Long story, but the advice here is to read "A Consumer's Guide to Therapist Shopping" on this site and ask the potential therapist the questions. You have a right as a consumer of their services to interview a therapist (or even question one that you may already have) and get answers that you ask. I think the advice you get from this article will allow you to get what is best for you.