This study is the review of relevant literature concerning human trafficking and roles of NGOs and IGOs in policy formation and implementation indicates the importance of addressing the issue at both the national and international levels. In order to develop appropriate policies on trafficking it is essential to document the role of various institutions in policy development to combat trafficking. This study concentrates on identifying the roles of three NGOs (Polaris Project, Institute for Policy Studies, and Vital Voices) and one IGO (International Organization for Migration) in affecting policy for the elimination of human trafficking. My exploratory study aims to examine in depth how four international organizations are currently affecting policies aimed at eliminating trafficking. More specifically, I seek to provide answers to the following questions: What are the organizations doing to affect policy? Who do they negotiate and meet with? Do they have authority to influence specific policy or legislation? What strategies are they using to affect anti-trafficking policy?