Mark Emdin

Partner

With nearly 30 years of international experience, Mark brings a rare mix of rigour, warmth, and practical insight to the complex work of aligning leadership, structure, and culture. A consultant, facilitator, and team coach, he specialises in untangling organisational complexity, redesigning operating models, and enabling senior teams to perform at their best—so that strategy can actually happen.

He is a founding partner of Ammalo, and his client list includes Sandoz, Unilever, Shell, Fonterra, Royal Canin, Novartis, Rio Tinto, and KPN—organisations navigating major transitions, growth challenges, or systemic dysfunctions that require both structural redesign and deep behavioural change.

Prior to founding Ammalo, Mark held a variety of international roles in Shell, and ran his own successful consulting practice based in Amsterdam. He holds a Masters in Leadership & Management, and advanced certifications in Hogan Assessments, Kantor Structural Dynamics, ORSC, and executive team coaching (Hult Ashridge). He is a Master Practitioner and faculty member for the 6 Team Conditions framework and co-author of the Team Diagnostic for Startups, a tool used by startups and investors to assess and accelerate team performance.

Mark also serves on the board of the Organisation Development Network Europe (ODNE) and leads workplace learning at easylaughs, an Amsterdam-based improv and stand-up comedy school—because some of the most powerful leadership lessons emerge when we navigate the unexpected.

At the end of the day, we are all improvising our way through life.

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The Team


Sophy Pern


Partner

Sophy is an international consultant, facilitator and executive coach. Working with executive leaders and teams on strategy engagement, organisation design and operating models, culture change and team development. She develops Organisation Development and Design capability in-house in client organisations, and with professional bodies across Europe.

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Andrew Day


Partner

Andrew is a consultant, facilitator and coach with over 30 years of international experience, both as an internal and external consultant. He helps leaders design and develop their organizations strategically, specializing in leadership team facilitation, executive coaching, and participative organisational development.

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Tim Haynes


Associate Partner

Tim is a skilled consultant, group facilitator, coach, and accomplished data-driven Organisational Design & Development leader with close to three decades of experience in FTSE Top 10 as well as high-growth global companies. Tim has operated as an internal organisational consultant and leader on numerous major change efforts over the years.

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Lindsey Masson


Associate Partner

Lindsey is an international OD Consultant & Coach. She particularly works in the areas of change, leadership, team and one-to-one coaching. Lindsey has a wide range of consulting and facilitation experience partnering with organisations and teams that need to become more effective in creating and delivering on strategy and enabling greater ownership of change.

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Hélène Casanova


Associate Partner

Hélène Casanova is a seasoned expert in organisational transformation, cultural change, and leadership development, with a distinctive background in finance that brings a data-driven, business-oriented approach to HR and OD strategy. She has led large-scale change management, M&A integrations, and talent development initiatives across multiple industries.

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Sander van Muijen


Associate Partner

Sander van Muijen is a seasoned consultant in leadership & change, executive coach, senior leadership team coach, as well as researcher and lecturer. He specialises in top team effectiveness, adaptive leadership, and large-scale culture and change programs. His work blends organisational insight with deep personal inquiry.

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Olivia Margo


Associate Partner

Olivia specialises in organisational dynamics and leadership. She offers executive coaching, supervision, and exec team coaching. Clients present with a wide range of challenges related to the complexity of large-scale operations, an uncertain context, shifting paradigms of leadership, and personal dilemmas.

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Simon Martin


Associate Partner

Simon is a strategic organisation development and design consultant who works internationally supporting clients in transforming their organisations and developing learning cultures. Common areas of focus for his work include strategy engagement, organization design, leadership, executive team development and culture change.

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For more information contact:
hello@ammalo.org

Want to speak to one of the team?  Drop us a line on hello@ammalo.org and we’ll be in touch.