Guillaume is the founder and Chairman of Sequoia Lab, the leading New York strategy advisory firm for brands with a sense of purpose. His firm specializes in providing strategy to CEO & entrepreneur of medium size companies. He has develop a business centric approach to CSR (Corporate Social Responsibility) called SmartCSR (TM).

Some of his clients include top CEO of the retail & luxury industry, the CEO of Lactalis (3rd largest World Dairy Company), Portofino, Alicia Keys & Alicia Keys Worldwide, Mintbox.com, Gustorganics, Faithanne, The Barber’s Daughters, Scott Lazerson, Wave Management Group, etc. Guillaume was also the business strategist of Alicia Keys.

He is also the co-founder and CEO of TOTSY.COM, the leading US private sale website dedicated to moms and parents. He founded the company in 2008 and very rapidly propelled the company to a leader position in the very active market of Private Sales & Daily Deals.

Before starting his own ventures, Guillaume was President and CEO of LALIQUE North America. He managed the retail and wholesale operations for the US and Canada for the Home, Gift, Jewelry and Perfume categories. Mr Gauthereau was heavily involved in successfully developing the B-to-B business of the company including achieving the largest sale ever made by the company by providing all the crystals for the Palazzo Casino Room in Las Vegas. Mr. Gauthereau previously worked as a Managing Director for LALIQUE Limited in the United Kingdom where he oversaw the UK subsidiary of boutiques, shop in shops, duty free and wholesale doors. Before joining LALIQUE, Mr. Gauthereau worked as a Manager at Louis Vuitton’s largest flagship store on the Champs-Elysees in Paris.

Preceding retail, he was the founder of an Internet start-up, Alidoo.com, and worked in the Health & Pet Industry for Nestle Ralston Purina and Hill’s Pet Nutrition Colgate .

Mr. Gauthereau received a PhD from the Veterinary School of Maisons-Alfort in Paris. He also holds a certificate in Marketing & Communication from the Vet School.

Mr. Gauthereau has been elected since 2009 Foreign Trade Advisor by the French minister of Economy, is a member of the Advisory Board for LEF (Luxury Education Foundation), member of the World Entrepreneurship Forum, member of CGI (Clinton Global Initiative), Founder of “4th Avenue Club” the Luxury Executive CEO Club, Board Member of BrickHouse Security, an advisory board member of XS Group a Korean Private Sale website and an advisory board member of Ayoka Productions: a non-for profit organization.

He very regularly speak at business schools and international business conferences.