about us

We know that even the most experienced businesses and leaders often need an outside perspective. Our team has the depth of experience combined with a supportive yet challenging approach to help you solve the complex business and personal challenges you face.

Jason Blackwell

Jason, a co-founder of Hatwell Group, specializes in helping executives reach their full potential through leadership development and communication training. He has been an executive coach since 2006.
Jason has collaborated with clients including Citigroup, Credit Suisse, Neuberger Berman, Fortress, Blackstone, Perella Weinberg Partners and Monomoy Capital. He also regularly works with management teams on IPO and trade sale roadshow presentations. Jason served eleven years as an officer in the British Royal Navy, specializing as a Commando with active service in Bosnia and Iraq. Upon retirement from the service, he completed a post-graduate course in journalism and worked in the Middle East reporting for British and U.S. newspapers, as well as appearing on Sky News and CNN. Jason holds a bachelor’s degree in International Politics.

Hattie Bollerman

Hattie, a co-founder of Hatwell Group, brings a deep and diverse coaching and consulting experience to her collaborations with clients. Those clients include international banks, asset managers, hedge funds, private equity firms and corporates.
With over ten years in the executive coaching space, Hattie’s recent engagements have ranged from communication coaching for a small banking group, helping a management team excel during their IPO process to facilitating large (100+) female-focused conversations about the communication and personal skills pivotal to success. Hattie coaches one-on-one to help clients with communication, leadership, EQ, confidence and career management. She adapts her style to the needs and personality of the client, while providing practical and action-oriented advice. Coaching engagements take many forms, some being situational and brief, while other collaborations are ongoing. Hattie’s earlier career included multiple capital markets roles, as well as a stint in the retail brokerage space, while completing a Master’s Degree program. Hattie holds a Bachelor’s Degree in English and French as well as a Master’s Degree in Counseling.

Gareth Lewis

Gareth, a Partner and Head of the Hatwell Groups London office brings a wealth of relevant insights and expertise to his training and coaching having spent 2 decades working in Financial Services Sales. His style is results focused, stretching clients to develop greater self-awareness and take bold action through challenging dialogue and thoughtful planning.
Prior to moving into coaching and training 8 years ago, Gareth held positions as a Private Client Stockbroker (Killik & Co), Private Banker (Merrill Lynch) and latterly, Head of Discretionary Sales (Bank of America Merrill Lynch). His focus is on coaching and training clients working across front, middle, and back office, from sales to risk and compliance and other corporate functions. For the past 8 years Gareth has trained and coached individuals and teams from a broad spectrum of business backgrounds including Private Banking and Wealth Management, Investment Banking, Asset Management and Private Equity and business start-ups. Gareth is an accredited Executive Coach with the Academy of Executive Coaching (AoEC) and qualified by the SFA as a Registered Financial Representative.


Kelly brings an extensive background in talent management and development to her current work as an Executive Coach, Facilitator and Learning & Development Strategist.
For the past 18 years, Kelly has led a rewarding career working with many leading investment banks as a talent & development specialist. Most recently, she led the Talent & Development team at Macquarie Group as Head of Talent for the Americas. Kelly has spent her tenured career coaching and consulting with C-suite leaders, senior executives, and high-potential managers on improving strategy, leadership, learning and development, talent management, succession planning, presence, and team engagement. As a facilitator, Kelly guides participants through leadership programs, management and communication topics and diversity and inclusion issues. Kelly completed her Certification in executive coaching through the iCoach Program at the Zicklin School of Business at Baruch College in New York. Kelly holds a Bachelor of Arts Degree from Seton Hill University in Pennsylvania.

Kevin Denoia

Kevin is the head of Hatwell’s leadership practice and brings more than 16 years of experience designing and delivering learning solutions for financial services professionals to this role. He has served in multiple leadership roles in talent and learning. Most recently he was the Global Head of Leadership Development for Credit Suisse, responsible for driving the bank’s overall leadership and executive development strategy. 
In that role, he led a global team of learning professionals to deliver best-in-class leadership development for over 10,000 managers worldwide. In addition, Kevin was responsible for driving key talent initiatives at Credit Suisse, having launched global high potential programs for critical positions across the bank. Throughout his career, Kevin has designed and facilitated leadership and talent programs across multiple regions and businesses and has coached leaders at all levels of the organization. Kevin also managed the global Managing Director Promotion process and the global coaching practice at Credit Suisse, adding to his rich understanding of organizational talent management. Before his career in leadership development, Kevin spent three years in the United States Army serving at Fort Bragg with the 82nd Airborne. Upon leaving the military, Kevin earned a bachelor’s degree in Psychology and Music and a master’s degree in Industrial/Organizational Psychology from New York University. Kevin’s certifications include the MBTI, Hogan, DiSC, NEO-PR, Leadership Circle 360, and the Human Synergistics Leadership Workstyles 360.

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