4 Founders backed by Greylock building Cybersecurity (2026)

4 founders backed by Greylock and building Cybersecurity, with company, funding, and investor detail. Includes Upwind Security and Blockaid.

Founders backed by Greylock and building Cybersecurity (4)

Founders backed by Greylock and building Cybersecurity covers 4 founders on Blockaid, Cogent Security and Tenzai and 1 other companies. The most common sector is Cybersecurity (4). Members are based in 2 cities, led by San Francisco, CA (2) and Tel Aviv, Israel (2). Companies represented include Upwind Security. Every founder below links to a profile with their company, backers, and the filings behind each round.

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