Andreessen Horowitz is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz and based in Menlo Park, California. It funds startups across the entire lifecycle, from seed to growth, with a broad focus on software and technology-enabled businesses. The firm backs companies in software, cloud infrastructure, digital platforms, data storage, and mobile and Internet services, as well as sectors at the intersection of technology with life sciences, such as bio healthcare and computational medicine. Its investments span artificial intelligence, fintech, consumer and enterprise software, crypto and blockchain, cybersecurity, and related infrastructure. Through strategic guidance and a hands-on approach, the firm aims to help portfolio companies scale and innovate.
Operating Partner and Head of Crypto Startup Accelerator
Jay Rughani
Partner
Katherine Rundell
Partner
Michael Sandwick
Partner, Consumer
Joe Schmidt
Partner
Jeffrey Silverstein
Partner
Sumeet Singh
Partner
Steven Sinofsky
Board Partner
Anne Lee Skates
Partner
Mariano Sorgente
Partner
Jack Soslow
Partner
Angela Strange
General Partner
Jeff Stump
Operating Partner
Jamie Sullivan
Partner
Bob Swan
Partner
Satish Talluri
Partner
Kimberly Tan
Partner
Carol Tang
Partner
Sam Thompson
Partner
Adela Tomsejova
Partner, Bio + Health
Dalton Turay
Partner
David Ulevitch
General Partner
Michelle V.
Investment Partner
Gabriel Vasquez
Partner
Michelle Volz
Partner
Sarah Wang
General Partner
Tyler Wilson
Partner
Daisy Wolf
Partner
Carra Wu
Partner
Kevin Wu
Partner
Guy Wuollet
Partner
Shangda Xu
Partner
Zeya Yang
Partner
Julie Yoo
General Partner
JJ Yu
Partner, Capital Network
Stephenie Zhang
Investment Partner
Joel de la Garza
Partner
Past deals in Nuclear Energy
Radiant
Series C in 2024
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.
Radiant
Series B in 2023
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.
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