Mary Beth O’Neill is a leadership consultant, executive coach, author, leader of the Executive Coach Training Series, and owner of MBO Consulting.

For over 25 years Mary Beth has coached a range of leaders, from CEOs, to senior vice presidents, directors, and senior managers, including those in Fortune 100 and 500 companies. She works with executives and their teams as well as 1-1 with leaders. Her passion and specialty is to help clients leverage their interactions with their teams to produce bottom line business results.

She leads the Executive Coach Training Series for experienced executive coaches, organization consultants, and HR professionals. Mary Beth also trains, coaches, and consults with internal OD/HR departments who are developing coaching cadres for their organizations and want to apply a consistently systemic coaching approach with their internal executive clients.

She has been a graduate faculty member for 23 years in the master’s program in Leadership and Organization Development at the Leadership Institute of Seattle (LIOS).

Some of her clients have included:

Nike Swedish Hospital System
Premera Blue Cross TransAlta Utilities Corporation
Microsoft Group Health Cooperative
Virginia Mason Medical Center Sound Transit
Marguerite Casey Foundation Providence Health and Services
REI Amazon

arrow Top selling book:

Mary Beth’s book, Executive Coaching with Backbone and Heart, is one of the overall best selling executive coaching books on, a classic in the field, and a textbook at many coaching schools.  It has been translated into 5 languages.

arrow What clients say about Mary Beth:

"Mary Beth O'Neill’s executive coaching gave me the tools and clarity to become a far more effective leader and change agent. Mary Beth’s coaching enabled me to be much clearer about my expectations, work through resistance, and get everyone pulling hard in the same direction.
The bottom line was that we succeeded with a monumental organizational turnaround that had seemed impossible to accomplish. She helped generate outcomes and strengthen leadership in a way that exceeds anything that I, or my executive team, have ever experienced with other consultants -- truly transformative."

Eric Stevens 


"Our coaching conversations have had a significant impact on my effectiveness as CEO this year. You have helped me focus my expectations, particularly of my executive team, in a way that is more purposeful, thoughtful and better structured, allowing us to address the most significant issues facing our company."

Dennis Madsen 


"Mary Beth brings a keen business focus to coaching by not just contributing insights but through helping me and my team gain the insights that we need to solve our own problems. She has the ability to see through the sometimes chaotic dialog and personalities in order to help a team focus on the real issues and dynamics that can impede organizations from achieving their goals.
Since working with Mary Beth (she doesn't get all the credit for our accomplishments, that goes to my leadership team), we have seen a significant reduction in employee turnover, improvement in our customer satisfaction scores, and quicker product release cycles, all leading to an improved bottom line."

John C. Nicol 

General Manager

"What I appreciate about Mary Beth is her ability to help me uncover possibilities that expose the underlying truths of a situation which reveal a solution that is elegant and effective."

James Fries 

Director, Human Resources & Operational Excellence

"Our organization has made dramatic improvements in how we operate and achieve better results. I also gained new insight into how to coach others."

Greg Tuke
Executive Director