Guillaume De Seynes

EVP Manufacturing Division & Equity Investments at Hermès

Guillaume De Seynes is currently the EVP Manufacturing Division & Equity Investments at Hermès. Prior to this, they worked as a supply chain manager for CHANEL Fragrance & Beauty, Estee Lauder Companies Europe, and Darphin. Guillaume started their career in 1999 as a back office manager for AROMADERME UK LTD. Guillaume has extensive experience in managing supply chains and teams of people. Guillaume is known for their work in cutting edge distribution centers.

Guillaume De Seynes has an executive MBA from ESSEC Business School, as well as a Diplôme d'ingenieur in R&D Cosmétique Analyse sensorielle from École de Biologie Industrielle. Guillaume also has certification from UCLA Anderson School of Management in Entrepreneurship module - Business in California, as well as certification from Saint-Cyr Formation Continue in Leadership and reactions in difficult circumstances.

Their manager is Axel Dumas, Co-Executive Chairman. Some of their coworkers include Olivier Fournier - EVP Governance and Organisational Development, Florian Craen - EVP Sales and Distribution, and Eric du Halgouët - EVP Finance.



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  • EVP Manufacturing Division & Equity Investments

    Current role