Leslie Bessellieu is a Senior Consultant and Executive Coach with Highland Performance Solutions. With more than 25 years of experience developing leaders and shaping healthy, high-performing organizations, she partners with executives to refine business strategy, strengthen leadership capability, and guide transformational change. Known for her engaging and empowering approach, Leslie blends empirically grounded psychological principles with pragmatic business insight to help leaders gain clarity, build confidence, and achieve sustainable growth. 

Leslie has advised leaders across a wide range of industries—including technology, healthcare, education, manufacturing, and professional services. She is recognized for her ability to quickly diagnose root challenges, build trust at all levels of an organization, and coach leaders to elevate their impact. Her expertise spans executive and team coaching, leadership development, organizational psychology, culture assessment, and strategic change management. 

A sought-after speaker, facilitator, and learning designer, Leslie has created and led hundreds of workshops, leadership programs, and retreats focused on topics such as executive presence, emotional intelligence, team effectiveness, and organizational health. She is a member of the International Coaching Federation and is known for her strong commitment to helping leaders achieve both personal growth and measurable business results. 

Leslie resides in South Carolina, where she enjoys spending time with family, painting, and engaging in mindfulness and personal development practices that mirror the principles she brings to her clients. 

EDUCATION • PhD, Organizational Leadership, The Chicago School of Professional Psychology MA, Psychology, University of Phoenix