National Seminars Group - Company Profile About Us About National Seminars Group National Seminars Training is focused on meeting the ever-expanding continuing education needs of adult professionals in all industries and professions. Our sole mission is to provide the results-producing training you need, when and where you need it, and at a price that is cost-effective for you and your organization. National Seminars Training has helped advance the careers of more than 10 million participants in business training seminars throughout the U.S. and around the world. National Seminars Training is headquartered in a suburb of Kansas City, MO. Our address is 6900 Squibb Road, Mission, KS 66202.