At Esséré we are…

Insightful about what you are living

At ESSÉRÉ, we are former leaders who have lived transformation from the inside. We know the weight of responsibility, the paradoxes of leadership, and the invisible tensions that shape performance. We’ve faced the same questions — how to engage, how to align, how to keep energy alive when change feels relentless. That’s why we don’t just understand your challenges — we share them.

Passionate about where you will go next

We believe the organizations of tomorrow will be profoundly different — regenerative, adaptive, and human-centered. Transformation doesn’t start with systems or structures; it starts with leaders — with you. We are driven by curiosity, conviction, and optimism about what organizations can become when people reconnect to purpose, trust, and belonging.

Inquisitive about how you will get there

Our decades of experience in leadership and cultural transformation have taught us one truth: no one transforms alone. We don’t come with ready-made answers — we learn with you, your teams, and your reality. Together, we explore, challenge, and discover new ways to lead and thrive. Because the path to the future is not taught — it’s co-created and transforming!

We exist to

Respond to the deep thirst for meaning in today’s business world. We design human-centered experiences that awaken collective purpose, create connection, and inspire organizations to act with greater clarity and coherence.

Develop BRAVE™ teams for a better world — teams ready to explore the unknown, embrace complexity, and lead with confidence, trust, and purpose. Together, we turn uncertainty into possibility and transformation into impact.

We believe that

Human nature is not fixed — we are neither good nor bad by essence. Who we become depends on our time, our context, and the environments we shape together. We are all capable of the best and the worst. Nothing is immutable.

In every human being lies a deep capacity — even a need — to grow through meaningful, value-creating relationships with ourselves, with others, and with the world.

When consciousness unfolds in the workplace, it changes the company and often the world for the better.

At work, these relationships can either expand our consciousness — making us wiser, more open, more alive — or shrink it. When consciousness unfolds within an organization, it transforms not only the company, but often the world around it.

Our clients talk about Esséré

Some references

For SMEs to large organizations

  • Transformation of culture (3–4-year assignments, working with CEOs & excos, facilitating 100-1000 people groups): Engie, Valrhona, Enovos, Alpiq, Airbus, Arterris
  • Team dynamics & leadership: Groupe Bollinger, Engie, Deloitte, Lombard Odier, Fedrigoni, Airbus, Groupe Bollinger, Schroeder & associés, Cassini #ESA, Idverde
  • Executive coaching: Fedrigoni, Lux. Stock Exchange, Sogelife, AG2R, Idverde

For start-scaleups

  • Mental fitness: CEO coaching & mentoring, mediation between co-founders, alliance building with future associate: Next Gate Tech, TheGreenBow, TrialCraft, MPC Therapeutics, WeavAir
  • Strategic advisory: investor communication and relationship, go to market, identify and recruit co-founders and team members: MPC Therapeutics, WeavAir, Prostia
  • People & Culture: management, team dynamics, team culture, employee journey processes: Next Gate Tech, Linkurious, TheGreenBow, Odysseus Space,

Some testimonials

from start & scaleups

Tomer Libal, founder Legal Tech, University Researcher

“A lot of emphasis is usually put on the business skills required from an entrepreneur, and less on the mental skills, such as the ability to look out of the box and prioritize personal goals. Serge fills in this gap by helping entrepreneurs learn and practice these skills via exercises and advice.”

Dmitrii W. Kislenko, founder Stargate - super-accurate GNSS positioning

Serge has an exceptional ability to listen, ask sharp questions, and identify non-obvious next steps. Working together as mentors across several events, I was impressed by his expertise in mental models and practical thinking techniques. His professional intuition, combined with a collaborative and thoughtful approach, makes him an outstanding partner to work with.”

Jordan Vannitsen, founder Odysseus Space - Space Tech

Serge brings an incredible value to executives in an area which is too often forgotten: the psychology around being a happy and efficient leader. I can’t wait to work again together.”

William B. Choi, founder Neurabody - Digital Health Tech

Serge truly understands us and has a unique ability to connect with entrepreneurs, having walked the same path himself. I’m deeply grateful for his work, which will have a lasting impact on many lives.”

Astou Ndiay, founder Hale-X - Digital Health Tech

Working with Serge has been a privilege!  His ability to uncover the deeper, often unasked questions with compassion and clarity, paired with his kindness and genuine humanity, makes him an extraordinary mentor and someone everyone would be lucky to have in their corner.”

Nicolas Martelin, founder Prostia - cancer screening Tech

Serge’s superpower lies in asking you – with empathy and openness – the right questions to move your business/idea forward.”

Raphael Martinou, founder MPC Therapeutics - Cancer Immune Therapy

Serge offers both strategic and human-centered guidance, unlocking each person’s potential to become an authentic and inspiring leader dedicated to creating a better world.”

Some of our clients

Pro bono

The team