Patrick Claessen

Partner, Cottonwood Technology Fund
Patrick Claessen, Partner, leads the Netherlands office and bridges US–European deep‑tech ecosystems, bringing institutional VC, corporate VC and energy joint‑venture experience focused on energy, materials, chemistry and manufacturing.
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Patrick Claessen
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Deeptech / Hardware
Robotics
Energy
Medtech
Materials
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About Patrick Claessen

Patrick Claessen is a Partner at Cottonwood Technology Fund who leads their Netherlands office and serves as their bridge between the US and European deep-tech ecosystems. His career spans institutional VC, corporate venture capital, and energy sector joint venture leadership, focusing on technology-intensive, asset-heavy industries like energy, materials, chemistry, and manufacturing rather than the typical software background of most VCs.

About their Fund

Cottonwood Technology Fund

Sectors
Deeptech / Hardware, Robotics, Energy, Medtech, Materials
Rounds
Pre-Seed - Seed
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Cottonwood Technology Fund is one of the world's top-10 best-performing VC funds according to Preqin, specializing in ultra-early hard science investments like photonics, advanced materials, and semiconductors that spin out of national labs and universities across Northern Europe and the U.S. Southwest. The fund positions itself as a bridge between these research-rich but under-served regions, with partners who act as hands-on commercialization experts helping transform lab technology into market-ready companies outside traditional tech hubs like Silicon Valley.

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