Arthur Kosten

Overview

Arthur Kosten is a Dutch angel investor and co-founder of Booking.com, specializing in early-stage technology investments. He has been actively investing in various sectors, including education, technology, and SaaS, with a particular interest in companies operating in Germany, the Netherlands, the United Kingdom, the United States, and Ukraine. His investment portfolio reflects a diverse range of industries, such as fintech, travel, e-commerce, healthtech, proptech, edtech, martech, media, consumer goods, logistics, foodtech, and cleantech. His investment strategy encompasses seed, early-stage, Series A, and Series B funding rounds, with individual investments ranging from $1 million to $50 million. Notable investments include Preply, a language learning platform, and Deskbookers, a workspace booking service. In June 2025, he participated in a €27 million Series B funding round for Knowunity, a German educational technology company. Arthur's extensive experience in the technology sector, particularly in scaling online platforms, informs his investment approach. His background in co-founding and growing Booking.com provides him with a unique perspective on identifying and nurturing high-potential startups. This expertise enables him to offer valuable guidance and support to the companies he invests in, contributing to their growth and success in competitive markets.

Investment Focus

• Innovative technology solutions
• Scalable business models
• Experienced founding teams
• Strong market potential
• Clear monetization strategies
• Sustainable growth plans
• Competitive differentiation
• Global expansion opportunities
• Positive social impact
• Alignment with investor values

Portfolio Companies