Joost de Valk is the Managing Director and co-founder of Emilia Capital. See contact routes.
Joost de Valk is the Managing Director and co-founder of Emilia Capital, a venture capital firm he established in 2021 alongside his wife Marieke after selling their SEO software company Yoast to Newfold Digital. His investment thesis targets early-stage digital and open source-focused businesses, with a specific focus on the software sector and the Netherlands or broader European geography. While specific check sizes and lead/follow behavior are not publicly detailed, he actively serves as an investor and advisor for portfolio companies including Wildcloud. Notable named portfolio companies include PatchStack, Atarim, and WordProof, where he also holds a board member position. De Valk distinguishes himself by continuing to develop open source software personally while investing, maintaining a hands-on technical approach alongside his capital allocation. He has not published distinctive public writing on investing philosophy beyond his personal bio stating his focus on open source businesses.
StartupFundraising tracks this investor record from SEC filings and announced rounds, updating focus, location and portfolio history as new data lands. Use it to gauge fit before an outreach, then widen the search to investors in Wijchen.
Investors like Joost de Valk · Full investor directory · Investor access · Company funding database