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John Griffin, MBA

John is a founding partner with the John Maxwell Team and serves as President of the President’s Advisory Council.  John lives out his mission through speaking, training and working with individuals and groups. He is an international coach and trainer for the John Maxwell Company delivering executive and group coaching as well as corporate workshops.

He also served as adjunct professor at Concordia University Texas, teaching “Leadership Theory and Practice.”

John spent 17 years working in various roles with IBM and Dell.  For nearly two decades, John and his wife, Antoinette,  published resource guides for seniors and their caregivers throughout Texas.

​John empowers his clients to maximize their relationships, results, and revenue. 

Antoinette Griffin executive coach
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Antoinette Griffin

Antoinette is a certified trainer, speaker, coach, and human behavior consultant specializing in the areas of introversion, confidence, communication and connection, networking, team building, and professional and personal growth. She is a keynote speaker and workshop presenter who provides her clients with practical ideas and steps to implement for amazing results.

Antoinette possesses experience working in both public and private sectors, and two decades as an entrepreneur. She received a Bachelor’s Degree in Management at The University of Texas.  

Antoinette teaches professional education classes at the University of Texas for introverted business professionals who desire to improve their leadership, communication and charisma in business and personal settings. She regularly leads mastermind groups for women in business who desire to catapult their professional and personal growth.