G. Rainey Williams, Jr. is president of Marco Capital Group A Limited Partnership, a privately owned investment partnership operating in Oklahoma, Texas and the Southwestern United States. Marco has been an active private investor over the last 25+ years, investing in a broad number of private equity, real estate and other alternative investments. Williams has led Marco since it and its predecessors were established in 1989.

Williams serves as lead independent director of BancFirst Corporation and has served on the boards of numerous private companies such as American Trailer Works Inc., Benham Investment Holdings and Titan Spine, Inc.

Currently, he serves as chair of the University Hospitals Authority and Trust, is Chair of OU Health, Inc and serves as Chair of the Investment Committee of Presbyterian Health Foundation, Inc.. Williams has served as an adjunct professor in the graduate program (MBA) at Price College of Business at the University of Oklahoma. He is a former chairman of the YMCA Retirement Fund in New York, the YMCA of Greater Oklahoma City, the Regional Food Bank of Oklahoma and has served as Senior Warden of All Souls’ Episcopal Church. He has also held significant offices and/or board positions for numerous charitable organizations on and off the Oklahoma Health Center campus including Dean McGee Eye Institute, Oklahoma Medical Research Foundation, the United Way of Metro Oklahoma City and the Greater Oklahoma City Chamber of Commerce .

Williams earned a B.B.A. degree in Finance from Southern Methodist University and a law degree from the University of Oklahoma College of Law.