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Take control of your authentic voice and create successful presentations, pitches, interviews - or just simply shine in every conversation.


I have developed an innovative training solution to guide you to your most confident voice, so you enjoy using it and become the speaker your audience LOVES to listen to. 

You will learn how to

  • amplify your voice 

  • unlock your fascinating presence and

  • speak with ease, whether that's on stage, in a meeting room or on video


As a voice coach I have trained hundreds of clients and students since 2012. Through my research and experience I have created my own method and refined the process of getting you to share your voice confidently, fast.

I guide my clients to uncover the immense value they have to give by expressing themselves naturally, deal successfully with nerves and feel confident about their voices every time they speak.

'Ask for what you want and be prepared to get it.'

Maya Angelou


HOW CAN I SUPPORT YOU? (in English, German or French)


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Discover what simple steps
you can take to gain control
of your voice for
public speaking today -
with my online courses
and free resources. 


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WORK WITH ME to become that confident speaker you wish to be, connect with your
authentic voice,
become magnetic for your audience 
and increase your impact.


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Read about my
group trainings and
team buildings - tailor made for
your organization or company. 
Request my corporate coaching brochure here.

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Hi, I'm Sonja.

I believe that we are powerful creators of our own reality. True confidence doesn't come from complying with a fixed vocal standard, but from connecting to the value that you bring, that is expressed through your true and authentic voice and letting that resonate with your audience.

I'm a vocal coach, public speaking coach, business trainer and musician. It is my mission to guide qualified, experienced and talented leaders take control of their authentic voice, convince their audience and increase their impact.


Being based in Brussels, Belgium I have guided my clients find their voice and share it with confidence through individual and group coaching since 2012. 


Sarah Richardson
Mindset & Selflove Coach

Where do I begin with Sonja? She is such an incredible, kind and intelligent coach! I was amazed at her ability to provide insight on what was really at the root of what was holding me back. I had so many aha moments in our session and I walked away delighted and excited at the calmness she inspired in me towards showing up fully. I feel more clear and aligned than I have in months! Sonja will facilitate a confidence transformation that is not only deep but thorough allowing you to truly root yourself in who you are! 

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Gretchen Cleveland
OBM I Launch & Business Support

Sonja is an incredibly gifted coach. Her technique is completely original and effective. Sonja helped me identify what's truly blocking me from showing up more fully, gave me easy-to-implement exercises to help me break down these blocks, and helped me understand my potential at a new level. I highly recommend Sonja's coaching to anyone who feels like she somehow isn't communicating her message or her true self in life or business - Sonja will help set you free!


Erin Kraebber
Marketing Strategy and Brand Solutions

Working with Sonja was so valuable! Not only did she provide clarity on the mindset block I was facing, but she also inspired me to take immediate action. Following our conversation, I felt the need to revise my podcast content plan for the week and put more of myself in front of the camera with an Instagram live. She guided me through her process in a way that was encouraging and felt like she was truly invested in my success.

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