Trammell McGee-Cooper and Associates, Inc. TMCA, Inc. is a leadership and talent development firm based in Dallas, Texas. With three decades of experience, we are creating organizations where people are happier, committed, and more productive. How? It’s about attracting, finding, inspiring, liberating, and appreciating the Genius that lives within each of us. Developing Talent and Teams to Achieve Bold Dreams through the Art of Leadership.