David Cowan stands out among venture capitalists for personally co-founding three cybersecurity companies from inside Bessemer's offices—including VeriSign, where he served as founding chairman and CFO—blurring the line between investor and operator in an unusually hands-on way. He also pioneered the proactive investment roadmap approach, where he and his partners pick specific frontiers like quantum computing or space technology, then conduct deep research and seek out founders rather than waiting for deals to arrive in his inbox.
What they've been talking about across their social media accounts

- Enthusiasm for the democratization of software development through generative AI, specifically tools that allow non-engineers to build production-ready commercial applications. Frequently highlights platforms like Create and Anything for handling complex infrastructure tasks such as hosting and payments, enabling a new wave of what is described as vibe entrepreneurship.
- Focus on deep technology investments that tackle significant engineering and physics challenges, particularly in aerospace and quantum computing. Cites the development of scalable photonic quantum computers by Xanadu and the return of supersonic commercial flight with Boom Supersonic as major milestones in this sector.
- Interest in the rapid progression toward the Singularity and the rise of autonomous AI agents that can improve themselves or perform complex research without human intervention. Discusses the Economic Turing Test to determine if and when hiring managers will prefer AI agents over human contractors based on performance and cost.
- Prioritizes the intersection of AI with the physical world, covering robotics, autonomous vehicles, and defense technology. Points to specific advancements like Waymo’s safety statistics and edge AI solutions for the military as evidence of how intelligent systems are evolving to perceive and act in real-world environments.
- Values substance and problem-solving over speed to market when evaluating startup teams. Shares advice on building the primitive elements of a solution before attempting to launch a full platform, noting that successful companies often focus on the unglamorous but essential utility aspects of a product first.
About their Fund
Sectors
SaaS, Fintech, Consumer, Health, AI
Rounds
Seed - Series B+
Avg Check Size
$500K - $100M
Notable Investments
Bessemer Venture Partners has over 100 years of investing history rooted in the Bessemer steel process, operates without a CEO or central investment committee where any partner can lead deals independently, and publicly shares their internal investment memos, roadmaps, and even their "anti-portfolio" of missed investments as learning tools. The firm runs on a "technology over ego" culture with an apprenticeship model where partners spend years learning alongside senior investors, and they made early contrarian bets on developer-first platforms and AI-native companies backed by quantified roadmaps that predicted major shifts before they became consensus.
Other partners at the fund
Notable Fund
Investments
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