Seeking advice?
Partnering with companies to define purpose, strengthen positioning, and deliver transformation that drives long-term business value.
— What I Do
At Thellesen Advisory, I help organisations turn strategy into measurable results. With more than a decade of experience leading corporate agendas in sustainability, public affairs, communication, and transformation - I know how to align leadership, purpose, and execution.
I work with companies that want to:
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Strengthen their strategic direction and positioning
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Build credibility through clear communication and stakeholder engagement
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Integrate sustainability and ESG into business strategy
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Lead transformation with structure, pace, and measurable outcomes
By combining strategic insight with hands-on execution, Thellesen Advisory helps you move from ideas to impact - ensuring your organisation achieves clarity, alignment, and progress that lasts.
— Core Services
Leadership & Strategy
Executive sparring & leadership advisory
Strategic development & transformation
Decision support & critical thinking
Communication & Public Affairs
Corporate & sustainability communication
Media relations & press handling
Stakeholder & reputation management
Sustainability & Risk
ESG & sustainability strategy integration
Policy insight & regulatory scenario assessment
Risk management
— Who Am I
As a leader and advisor, I have worked internationally across sustainability, strategy, communication, and public affairs. I have led transformation processes in both large corporates and growth companies, helping leadership teams align purpose, strategy, and execution to create measurable business impact.
My work bridges the gap between vision and implementation - translating complex agendas into clear direction and tangible results. Through Thellesen Advisory, I now support executives, boards, and organisations in shaping strategies, strengthening positioning, and driving meaningful change.
— Work Experience
Head of Communications, Corporate Sustainability & Public Affairs
BioCirc / 2023 - 2025
Senior Director, Group Sustainability, External Affairs & Corporate Communications
Faerch Group / 2019 - 2023
Project Manager
- Energy Efficiency & Circular Economy
State of Green / 2013 - 2018
— Get in touch
Thellesen Advisory helps leaders and organisations turn strategy into action. With a background in driving strategies and programmes across Transformation, Communications, Sustainability and Public Affairs. I thrive in an environment where strategy becomes operational and impact is created.