About Mattison

Mattison Grey, M.Ed, MMC, CPPC, is the founder and president of Greystone Guides. She is a professional business and leadership coach, mental skills consultant and coach trainer. Mattison has completed a four-year coaching, leadership, and high-performance training curriculum, and is certified by the International Association of Coaching and is a Certified Positive Psychology Coach. Since 1997, she has been coaching teams and individuals and consulting in organizations in the areas of leadership, communication, coaching, team work, and high performance. She has trained and coached high-level executives, functional managers, police officers and cadets, entrepreneurs, athletes, and artists in a variety of organizations and settings.

Mattison is continually exploring the art and science of human performance and high-value coaching. As a professionally certified business coach, Mattison has helped thousands of people have extraordinary lives and businesses. Mattison is fascinated by the gap between low performers and high performers and what it takes for people to move from mediocre to masterful in their chosen endeavors.

Mattison has written numerous professional articles and white papers and is the co-author of The Motivation Myth, which examines how our habitual language often reduces performance in those around us, and what to do about it. Mattison’s proprietary leadership and coaching programs provide leaders with the framework to better understand employee behavior, motivation, and performance in the workplace and teach people how to bring out the best in those around them. Some of her current and past clients include: University of Houston Bauer College of Business, Marek Brothers Systems, Ameriprise, Shell Oil Company, Igloo Corporation, the City of Houston, YMCA, Aramark, Memorial Hermann Ironman Institute, Houston Police Department, and University of Houston Continuing Education.

Since 2015, Mattison has served as the mental skills coach at American Rugby Pro Training Center. In its inaugural season, ARPTC won the USA Women’s Club Sevens Rugby National Championship, and in 2016, ARPTC took the bronze medal. Just prior to the 2016 Rio Olympics, Mattison participated as a guest coach for the U.S. women’s rugby team at the Olympic Training Center in Chula Vista, California. In 2019, Mattison traveled to London, England, to serve as a guest mental skills coach for the Richmond Women’s Premiership Rugby Club.

Mattison is a former NCAA Division I athlete and attended the University of Iowa on a swimming scholarship. After college, Mattison was looking for a new competitive outlet and found women’s rugby. She quickly rose through the ranks, landing one step away from the USA national team before retiring to raise a family.

In 2006, Mattison took up the sport of touch rugby, competing in numerous national championships, and was selected to the USA Touch World Cup Squad in 2008. Mattison’s touch rugby team placed second at the 2010 U.S. Touch National Championships, and in 2017, her team placed third.

As an employee, business woman, athlete, or coach, Mattison is no stranger to high performance environments and understands what it takes to successfully navigate those environments in multiple roles.