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"One of the things I enjoy most is connecting with like-minded people who share my passion for learning and growing.  I feel very fortunate to be doing work that I love and is also fulfilling.  However, I am most grateful for the people I work with because it is the relationships that make it meaningful."


Retail, Entertainment, Hospitality & Service


"I have known and worked with Dr. Mary Kelly for over three years.  As MGM Resorts transformed Human Resources into a Business Partner model, she was instrumental in developing our human resources leadership development program.  Her work allowed us to upskill our team quickly.  Additionally, I have also utilized her expertise in coaching and working with and assessing workgroups and individual leaders to improve their overall leadership capabilities."


Chief Human Resources Officer, MGM Resorts International

Financial Services & Consumer Products


"It is my pleasure to offer this endorsement for Mary Kelly as a true professional and excellent resource in the area of leadership and talent management and organizational effectiveness.  Mary and I worked closely together at Bank of America in support of the company's Global Commercial Banking Group.  Mary was a senior Human Resources partner in the area of Leadership Development and did an excellent job in working with all levels of talent and leadership.  Mary's drive, energy, knowledge and experience were a definite plus for the organization."


Chief Executive Officer, Health Care Partners of South Carolina, Inc.

Manufacturing & Operations

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"I had been looking for great HR leadership, for my rapidly growing manufacturing company, for a few years and was coming up dry.  Then, I found Mary Choi Kelly!  Mary is a highly intelligent, driven, and proactive HR leader that brings tremendous value at the strategic level with the ability to also get into the weeds on tactical issues, and get things done.  In addition to her broad HR competencies, Mary also has excellent crisis and change management skills, that were invaluable to us during the onset of the Covid-19 Pandemic.  I can’t imagine having survived 2020 without Mary as part of my C-Suite.


Chairman and Chief Executive Officer, Inline Plastics

Growth & Technology

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The Patent & License Exchange, LLC

"Mary is truly a trusted advisor that delivers results!  Not only has she provided me with valuable coaching and guidance on complex HR issues, she has the ability to translate her experience and make it relevant for our ever-changing, fast paced environment.  Mary’s depth of knowledge and experience in change management and talent management has been instrumental to transforming the HR organization at Arrive and positioning us for the next phase of growth.  I feel fortunate to have her as a partner and sounding board to navigate the many challenges that I face in my role."


Chief People Officer, Arrive Logistics

Speaking Engagements

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MCK Leadership offers:

Leadership Programs


Speaking Engagements

"As the CEO of a technology staffing company I have worked with many HR executives through the years.  Mary is someone who stands out as an HR executive that embodies the leadership characteristics of a true business partner.  She understands business strategy and aligns people strategies to deliver results.  Mary is also an extraordinary speaker who is a role model and advocate for developing women in leadership.  I am very excited to have Mary as a partner in our Women in Leadership CIO Certification Program provided in collaboration with UCLA."


Chief Executive Officer, Irvine Technology Corporation

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