We bring a cross-cultural approach to meet your needs

Jean Bonneau

Jean Bonneau is an accredited Executive Coach with over a decade of experience working with senior Leaders and leadership teams across multiple sectors. Prior to coaching, Jean had a successful professional career working at executive team and Board level in the energy sector, and in international consulting. He was also a chief negotiator at the UN (United Nations) for roaming rights of nomads in Africa.

Jean’s approach combines neuroscience, behavioural analysis, and mindfulness to help leaders sharpen focus, build resilience, and increase their impact in complex environments.

Known for his warm yet challenging style, Jean enables executives to break through limiting patterns and make conscious choices that drive sustainable performance. His work is particularly valued in contexts requiring cultural sensitivity and strategic adaptability.

With a career spanning international organizations, corporate boardrooms and complex negotiations, Jean brings a global perspective and practical insight to every engagement. Jean splits his time between Canada and Barcelona in Spain, and coaches in both countries. He coaches in English and French.

Leslie Goldenberg

Exploring unspoken or seemingly-unspeakable questions about life and leadership, and finding courageous ways to address these dilemmas, is the essence of Leslie’s work. She offers an invitation to slow down and reflect: What are you doing? Why are you doing it? Who are you becoming while you do it? What is it doing to you?

Leslie specialises in executive transitions enabling leaders to more effectively move into new organisations, new roles and new life chapters

Julia Holloway

With more than a decade of experience coaching senior executives and their teams, Julia brings a distinctive combination of business acumen, empathy and psychological insight into her work. She has partnered with leaders across sectors including technology, private equity, financial services, higher education, and the nonprofit world – among them Harvard Business School, Bain Capital, Google, JP Morgan, Toyota, Saks Global and the U.S Navy SEALs.

Before coaching, Julia spent 25 years in business management and law, building and leading companies in both public and private settings. This foundation enables her to connect quickly with the realities of executive life while inviting clients to broaden perspective and integrate new ways of leading.

Known for her grounded presence and intellectual curiosity, Julia blends critical thinking with embodied and creative practices to help clients access insight, resilience, and authentic impact. She holds an MCC credential with the International Coaching Federation, is a certified coaching supervisor, and has trained with both the Hudson and Strozzi Institutes.

Hande Yaşargil

Drawing from her extensive experience working with executives across various countries and cultures, Hande offers a nuanced approach to leadership development that integrates diverse perspectives. She is also deeply committed to advancing female representation on corporate boards, designing mentoring programs, and coaching senior female executives to enhance their leadership impact in governance.

Hande’s approach combines intellectual rigor with a deep understanding of the human side of leadership and company life. As an Organisational Clinical Psychologist, she works with clients to explore the deeper psychological and systemic dynamics that shape leadership behaviour and organisational effectiveness. Bringing a coaching style that is both reflective and direct, she encourages leaders to confront challenges head-on while fostering deeper self-awareness and resilience in the face of complexity.

Hande’s work is informed by a lifelong dedication to learning. She regularly engages in advanced studies at institutions such as INSEAD, Harvard Kennedy School of Governance and The Tavistock Institute. Hande coaches in both the UK and Turkey.