Joseph Horowitz is the Managing General Partner and founder of Icon Ventures. See sector focus and contact routes.
Joseph Horowitz is the Managing General Partner and founder of Icon Ventures, a Palo Alto-based firm he established in 2003 that has grown from $100 million to $1.4 billion in assets under management. His investment thesis focuses on leading Series B and C financings in enterprise technology, cybersecurity, digital health, and artificial intelligence. Horowitz typically acts as a lead investor in these later-stage enterprise deals, with a strong historical emphasis on the security sector where he secured early investments in companies like FireEye and Palo Alto Networks. Notable portfolio companies include the publicly traded Playstudios (MYPS), cybersecurity firm Synack, and successful exits such as Meebo (acquired by Google) and Area 1 Security (acquired by Cloudflare). He serves on the board of Playstudios and maintains active involvement with current portfolio firms like Istari and Global Worldwide. Horowitz shares his perspectives publicly by posting on Twitter under the handle @JoetheVC and frequently appears at Stanford symposiums.
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