Calm Authority. Clear Voice. Real Impact.
You are experienced, articulate, and capable. In familiar settings, your communication works, but under pressure — when all eyes are on you, when the stakes are high — your voice changes. It tightens, your breath shortens, and your authority doesn’t land the way it should.
This isn’t a confidence issue.
It’s a pressure and regulation issue — and it’s exactly where leadership is most visible.
I work with professionals and executives to ensure their authority is heard when it matters most.
Through a refined, voice-based coaching method, you learn to:
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stabilise your voice under pressure
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regulate nerves without forcing confidence
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project calm authority and presence
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speak with clarity in meetings, presentations, and on camera
I have coached hundreds of clients since 2012 and developed a precise approach that works quickly and makes speaking an enriching and enjoyable experience.
My clients don’t learn to perform. They learn to lead through their voice — consistently, calmly, and with impact.
“Communication is as much physiological as it is intellectual.”
HOW I CAN SUPPORT YOU (in English, German or French)
CORPORATE TRAINING
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group trainings and
team buildings - tailor made for
your organization or company.
Request my corporate coaching brochure here.
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European
Commission
European
Parliament
GSK
Henkel
Procter & Gamble
HOW TO GET STARTED:
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Take a look at my programs
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And/Or read my blog posts, watch my videos or download my free resources to learn about your voice and presence today
Hi, I'm Sonja.
I am an executive voice and presence coach with a background in social & cultural anthropology, communication, voice and music. I work with experienced professionals and leaders who want their authority to be heard clearly and consistently, especially in high-responsibility situations.
It is not about performance or persuasion. My work supports leaders in stabilising their voice as an instrument of communication, so their expertise, credibility, and responsibility are communicated with clarity and composure.
Based in Brussels, I have been working with professionals in individual and group settings since 2012, supporting them in aligning how they are heard with who they are and the level at which they operate.
CLIENT WINS
Sanziana,
Director Regulatory Affairs
“The effect of public speaking coaching with Sonja is like being equipped with a magic toolbox with instruments that you can pick and choose to help you finding the pleasure in successfully addressing wide audiences! Sonja tactfully guides towards the discovery of unexpected connections with one’s own voice and unfolding any internal obstacles standing in the way of enjoyable communication”
Liene,
Interpreter
“I sincerely recommend Sonja's coaching to anyone struggling with some aspect of their voice. She is a very smart lady who knows how to get to the bottom of your problem, no matter how intricate it is. I came to her convinced that I had some strange glitch related to my voice, but through our sessions she helped me to understand the variety of psychological, confidence-related and personal layers that affect me when I have to speak under stress and pressure. This was very insightful and transformative and helped me immensely to learn to use my voice in a more confident and calm manner. On a more personal note, it was also a very interesting journey to get to know myself better as a person. Thank you, Sonja! :)
Fille,
Photographer
“I would recommend Sonja to anyone in their preparation for public speaking!
Sonja actively helped me in the preparation of my first ever big talk in front of a big audience. Despite my procrastination and last-minute changes she always stayed positive and patient, and flexible, and she did whatever do comfort me. I would come back for sure in the future if I ever have another big talk coming up.
