Silse Martell

Silse Martell founded her first PR agency in 2002. Since then, she has created two more agencies, co-founded the executive mentor platform Collective Brains, and became an investor in health tech. She is currently pursuing IMD’s Board Certification.  

Latest publications


The ‘Magnificent Seven’ (M7): Assessing their contribution to the performance of US publicly listed firms

17 hours ago • by Camilla Erencin, Simon J. Evenett, Pierre Ledan, Felix Reitz in Crux of Capitalism • 5 min read

Data from the Crux of Capitalism finds that the ‘Magnificent Seven' “tech” stocks – Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, and Tesla – together accounted for 32% of the economic profit of...


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