top of page


For as long as I can remember, I have been passionate about finding ways to “humanise business” and re-imagine what the economy and society can look and feel like when we put fundamental human values and stewardship of the planet at the heart of everything we do. My starting point was a practice of self-knowledge and personal inner transformation, which was the subject of my PhD on moral Renaissance literature and theology at University College London. This path led, through a number of synchronicities, to the discovery of Sustainability, which instantly resonated with me as a practical way of enabling individuals and organisations to express their true selves, their purpose and values. 

Through my experiences over the last 20 years co-creating and implementing Sustainability strategies in the Electronics and Finance sectors, and then exploring drivers of change in the Tech and Personal Development sectors, I have learned a great deal and had an amazing opportunity in collaboration with many talented and dedicated people to practice and refine my ideas and aspirations. 

Today, as a Partner at Umbutu, I am eagerly exploring the next frontiers of Impact Investing and Sustainability with Guillaume and the team, both in terms of the heart-and mind-set that we can adopt to transform our consciousness and the inspired action we then want to take to live our lives in ways that are meaningful to us and co-create a regenerative, inclusive economy and society. 

umbutu - Sabrine Lourdin


Having lived and traveled abroad for most of my life, I have gained much inspiration for the different cultures and beliefs that I have so gratefully encountered. A graduate of Parsons School of Design with a BBA in Design & Management and a high school graduate of Institut le Rosey in Switzerland, I have been blessed to have crossed paths of such diverse and passionate individuals. My love for animals, more particularly for horses, enabled me to pursue my dream as an equestrian in the world of show-jumping for numerous years. This connection that so many people thrive for, allowed me to appreciate all the little things in life, and was a permanent reminder of what is essential today. Our true purpose as humans and the footprints we are so carefully leaving behind is something that constantly calls my attention. This is where I was fortunate to meet Guillaume Taylor and work alongside of him on his numerous endeavors and on his quest on leaving a positive impact through his choice of investments. Although I am new to the field of impact investments, I am very much familiar with their importance in choice and change. The intention to generate a measurable beneficial social or environmental impact is what inspires me in umbutu today, and for our future generations. At the end of the day, whatever field you work in, and whatever role you have, the true concept of collective existence is the key to a better and more knowledgeable future.

umbutu - Guillaume Taylor


Having been raised by a mother who, without her knowing it, was the quintessence of what ecology means, social and environmental values were ingrained in my upbring.

After having completed my primary & secondary schooling and university in the United States, I began my career in Finance in 1989 with Intel Corporation, first in the UK and then in France. A chance meeting in 1995 brought me back to Switzerland, my birthplace, where I pursued my career in Private Banking, with Darier Hentsch & Cie and as a Partner of de Pury Pictet Turrettini. In 2010 I founded Quadia, an investment firm that would allow me to showcase my understanding of what finance should and must achieve. The learnings of social and environmental finance were mostly brought to me by the fortunate collaboration with world class foundations and NGOs. Today I am the CEO of Hanaku, a company focused on sustainable small-scale infrastructure.

bottom of page