Guillaume Marcillac
Angel Investor
Paris, Île-de-France
Guillaume Marcillac, Angel Investor is an active investor based in Paris, Île-de-France. This profile covers what Guillaume Marcillac backs, at which stage, and how founders can reach out in 2026.
Mr. Guillaume de Marcillac is an Angel Investor. Mr. Guillaume served as a Co-Chief Executive Officer & Director Executive general at FastBooking. He joined FastBooking in early 2008 as Chief Financial Officer and currently serves as Chief Operating Officer. He combines strong entrepreneurial, consulting as well as large group skills with a strong focus on growth. He holds a diploma from both Ecole Supérieur de Commerce de Paris (top French business School) and the London School of Economics (MSc in Finance). He started his career with Bain & Co, a leading strategy consulting firm. During his 7 year tenure with Bain, he worked in Paris, Geneva and San Francisco on various strategic projects including retail and travel related subjects. He then joined EuroDisney and became Director of Strategic Planning focusing on theme park and hotel related initiatives (strategic partnership with hotel chains and independent hotels). In 2000, he participated in the creation of Egencia, an internet based corporate travel agency which subsequently became Expedia Corporate Travel.
- Investor type
- Angel
- Stages
- Early Stage Venture
- Invests in
- FoodTech & AgricultureFood & Beverage
- Location
- Paris, Île-de-France
- Typical check
- $500K
- Past investments
- 1
Notable investments
How to reach Guillaume Marcillac
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Cite this page
Round Funded. "Guillaume Marcillac." Round Funded investor database, updated September 8, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/guillaume-marcillac
Frequently Asked Questions
What does Guillaume Marcillac invest in?
Guillaume Marcillac invests in FoodTech & Agriculture and Food & Beverage, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Guillaume Marcillac invest at?
Guillaume Marcillac typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Guillaume Marcillac's typical check size?
Guillaume Marcillac typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
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