The National Panhellenic Conference (NPC) is the trade association for 26 national and international member organizations that are autonomous, women’s-only social sororities. As such, NPC is one of the largest organizations advocating for women. NPC sororities are located on 670 campuses with nearly 370,000 undergraduate members in more than 3,350 collegiate chapters. Alumnae are represented in more than 3,400 associations throughout the world.