People

Lesley Trenner PCC headshot photo, smiling woman with dark curly hair wearing striped shirt in front of light background

Lesley Trenner, PCC

Lesley Trenner, PCC, previously held a variety of senior roles in organizational change, communication, and executive coaching with the multinational pharmaceutical giant GSK. Lesley now specializes in helping people navigate midlife…

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Patricia Riddell ACC and Ian McDermott headshot photos in front of blue background

Patricia Riddell, ACC (United Kingdom) and Ian McDermott (United Kingdom)

Patricia Riddell, ACC, is a professor of applied neuroscience and the co-author of The Neuroscience of Leadership Coaching: Why the Tools and Techniques of Leadership Coaching Work. She is also a consultant…

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Tina Mertel MCC headshot photo, smiling woman wearing glasses with brown hair

Tina Mertel, MCC

Tina Mertel, M.A., PCC, has supported individuals in creating better relationships, whether with themselves or with others, for over 20 years. Her book, Meaningful Coaching, looks at how values impact…

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Matt Trenchard headshot photo, man with dark hair wearing suit and striped collared shirt

Matt Trenchard

Matt Trenchard, ACC, is CEO and co-founder of North Point Coaching Academy in Dubai, UAE, where he is fortunate to witness students growing in their self-knowledge and, in doing so,…

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Whittney Allen headshot photo, smiling blond woman in front of dark background

Whitney Allen

Whittney Allen is a member of ICF’s Marketing and Communications team, where she helps with external communications, ICF awards programs and Coaching World. She holds a master’s degree in English…

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Sue McMahon PCC headshot photo, smiling woman with short brown hair wearing a jean jacket in front of neutral background

Sue McMahon, PCC

Sue McMahon, PCC, is an ICF credential-holder, a Board Certified Coach, and founder of Living from the Heart LLC. Sue has served in numerous ICF volunteer leadership roles, including chair of the Independent…

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Naimh Gaffney PMC ACC headshot photo, smiling woman with dark hair wearing a white top in front of white wall

Niamh Gaffney

Niamh Gaffney, PMC, who founded her company Directionality in response to the challenges of life-changing events, is an award-winning ICF Ireland coach and TedX speaker. She supports her clients as…

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Dr. Brian Underhill PCC headshot photo, smiling man in suit in front of white and blue background

Brian Underhill, PCC

Brian O. Underhill, Ph.D., PCC, is the founder and CEO of CoachSource, the world’s largest executive coaching firm, with over 1,100 coaches in 100+ countries worldwide, and the co-author of Executive Coaching for Results:…

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Gaelle Lecourt headshot photo, smiling woman with short blond hair wearing a black top and red necklace in front of tropical greenery

Gaelle Lecourt

Gaelle Lecourt mentors women to create thriving online coaching businesses so they can have the financial and personal freedom to do what they love while traveling anywhere in the world. Leading…

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ICF Foundation social logo

ICF Foundation

Established in 2004, the ICF Foundation (one of the International Coaching Federation’s six family organizations) connects and equips professional coaches and organizations to accelerate and amplify impact on social progress through coaching. The…

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