Guillaume holds a master’s degree in Environmental Policy and Sustainable Development from the Institut Catholique de Paris. Initially specialized in economic valuation of ecosystem services provided by coral reefs, he worked for four years in French Polynesia for IFRECOR and CRIOBE research projects, as well as for several international programs (BfN, IUCN). Thereafter, he focused on cost/benefit analysis of marine protected areas, notably through a Pew Charitable Trust project. At the same time, he also supervised a monitoring program for green sea turtle egg-laying sites and taught at the University of French Polynesia. Having joined Vertigo Lab in January 2018, Guillaume has actively worked on the development and structuring of BlueSeeds. Within the consultancy firm, he has worked on several projects related to marine conservation finance.