Lionel is the founder of Sosa, Bromley, Aguilar & Associates, now Bromley Communications, that grew to become the largest hispanic agency in the U.S.
He has been Hispanic Media Consultant in seven Republican presidential campaigns beginning in 1980. He is a recognized expert in Hispanic consumer and voter behavior.
Lionel was named one of the "25 most influential Hispanics in America" by Time Magazine and is a member of the Texas Business Hall of Fame.
He is the author of "Think and Grow Rich: a Latino Choice" published by Random House, "The Americano Dream: How Latinos Can Achieve Success in Business and in Life" published by Dutton, and "Children of the Revolución: How the Mexican Revolution Changed America" distributed by University of Texas Press
Lionel has served on the Board of Regents of The Texas A&M University System, the Board of Trustees for the University of the Incarnate Word, the Boards of Sesame Workshop, creators of Sesame Street, ACT (American College Testing) and the Public Broadcasting System. He chaired both the United Way of San Antonio and the San Antonio Symphony.