Donald Valentine, the founder of Sequoia Capital, was an early-stage venture investor who focused on **semiconductors. See sector focus and contact routes.
Donald Valentine, the founder of Sequoia Capital, was an early-stage venture investor who focused on **semiconductors, systems, and software**, prioritizing companies targeting **massive, emerging markets** rather than competing in existing ones [2][3][7]. His distinctive thesis emphasized investing in the **"infrastructure layer"** of foundational technologies, betting on the creation of entirely new industries like video games, personal computing, and networking [2][7]. Valentine was an original investor in notable portfolio companies including **Apple, Atari, Cisco Systems, Oracle, and Electronic Arts**, which collectively helped create the modern semiconductor, personal computer, and digital entertainment industries [2][3][5].
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