COACHES
Founder & CEO
Private & Corporate Coaching, Treasure Chest Coach
Eric founded GEM Coaching in 2005 and The Treasure Chest in 2020. He is a lead coach in with expertise in life and career planning, and working with businesses such as The New York City Housing Authority, Google and Blink Fitness on team development. Eric launched the GEM Compass app in 2025, extending GEM’s coaching philosophy into a digital platform designed to help individuals set goals, track progress, and stay accountable to their personal and professional growth.
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Master Coach
Private Coaching
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Helene is a Master Certified Coach and member of the International Coaching Federation. Since her training at Coach University in 1998, she has worked with business owners, entrepreneurs, women, and rising coaches.
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Coach
Facilitator
Collaboration Expert
Douglas F. Williamson, an internationally recognized collaboration expert and certified Coach through GEM’s Renaissance Academy, has spent over a decade helping individuals and groups achieve their potential. Experienced in partner relationship management, strategic planning, natural resources management, international relations, leadership training and coaching, and cross-cultural cooperation, Douglas guides clients toward meaningful insights, clear goals, accountability, and tangible success.
Executive and Leadership Coach
Private Coaching​
Sherrie Deans is a strategic change agent whose strong communication and interpersonal skills have solidified her reputation as an expert organization builder and connector of productive relationships. She is the former founding Executive Director of the National Basketball Players Association (NBPA) Foundation and Chief Operating Officer of the
NBPA. She founded Intentional Group in 2022 to leverage her experience, networks, and insights to help others design and implement more sustainable and impactful solutions.
Coach​
Julian is a leading communications figure in the UK and has mentored some of the industry’s most valued professionals and held top clients for over a decade. With over 35 years experience within brand communications. Julian has worked across the fashion, beauty, design and culture, hospitality, wine and Spirits sectors. Clients include Calvin Klein, Estée Lauder brands, Kering, Amazon, Rosewood Hotels, Belmond, LVMH, Marks & Spencer. Working with start ups, established brands and founders to guide and support with brand strategy, messaging and building communities Known for his strategic precision, grace, and reliability, Julian has a unique talent for effortlessly connecting people, businesses, brand, and story through his vast network of media, industry insiders, and opinion leaders. Julian sits on the board of the Victoria & Albert Museum and is a trustee of The Design Museum. Julian is passionate about infusing stories with a creative force through compelling content creation and experiential events that increase reach and engage audiences.
Executive Public Speaking Coach
Private & Corporate Coaching
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Caitlin is a recovering television broadcaster and venture capitalist who helps executives and their teams to feel more confident in the spotlight and become more successful leaders and confident communicators, without the nerves, stage fright and poor messaging that is messing up both their internal and external facing communications.
Coach​
Maxim Shapiro is a Transformational Coach and Managing Partner in commercial real estate finance who combines business leadership with a deep commitment to personal growth. Drawing from years of experience leading teams, negotiating complex deals, and navigating high-stakes environments, Max helps professionals develop greater clarity, confidence, and purpose in both their personal and professional lives. His coaching is informed by his own journey of overcoming perfectionism, self-doubt, and the pursuit of external validation, giving him a practical understanding of the challenges many high performers face. He works with executives, founders, creatives, and other driven individuals who want to break through limiting patterns, strengthen relationships, make better decisions, and lead more authentically. Known for his direct yet compassionate style, Max creates a space for honest reflection and meaningful growth, helping clients align their actions with their values and build lives that are both successful and deeply fulfilling.
Professional Certified Coach
Masters Level Social Worker
Bebuo initiated her coaching journey while engaging in behavior intervention and therapeutic family interventions as a social worker. She delves into various coaching modalities, ranging from ontological coaching to executive and performance coaching, serving as a life coach and an executive coach for both executives and their supporting staff.​​​
Executive Coach
High Performance Speaker
Lenny empowers leaders to reach their full potential. With over 15 years of experience at top organizations like J.P. Morgan, The City of New York, and Management Leadership for Tomorrow, Lenny combines mental fitness, deep self-awareness, and a wealth of professional expertise to guide executives and teams towards success.​​​
TEAM
Corporate Consulting and Client Relations Manager
Jake graduated from the University of Vermont in 2022 with a degree in Environmental Science. He has since worked with municipalities around the U.S. conducting land use surveys and spatial analysis, and has been involved in ecological garden design projects in Maine and New York.
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Chief Finance Officer
Sebastian Fidilio
Sebastian is a CPA and the CFO of GEM where he manages all of the financial aspects of the business and drives growth. He is also the Founder of sebCFO, a trusted provider of bookkeeping, tax and CFO services to startups and real estate investors. Seb has a background in audit and consulting at PwC, as well as investment banking at Deutsche Bank. He is a graduate of the University of Connecticut.
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GEM Marketing & Sales
Almog Ankori
Almog is an undergraduate student at Columbia University, majoring in Computer Science. He has worked in various positions, notably in the fields of SEO and marketing, well equipping him to assist and grow GEM.
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GEM Program Manager
Stephanie Rafuse
Stephanie is an educator and mentor with five years of experience teaching economics and government. Specializing in adolescent education and social studies, she excels in innovative teaching, program development, and mentorship. As a contributor to GEM’s Renaissance Academy, she emphasizes transformative learning, leadership, and career growth, empowering individuals with confidence and purpose.
