Marc Andreessen – Startup Investor Profile

General Info

Marc Andreessen is a venture capitalist known for focusing on AI in bio and health for impactful investments. His investment areas include AI, blockchain, consumer Internet, enterprise software, biotechnology, and clean technology. Andreessen Horowitz invests in early-stage startups and funds, providing checks ranging from small amounts to hundreds of millions. Marc Andreessen has a successful track record with multiple exits and investments in companies like Neoclassic Capital and Reddit. Starting from Netscape, his professional career transitioned to venture capital with Andreessen Horowitz, showing a preference for partnering with forward-thinking individuals and prioritizing collaboration in investments.
Location: San Francisco, CA
Country: United States of America
Industries:
Investment Regions:
Investment Stages: pre-seed, seed
Website:

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🤖 AI Activity Report

Status: very-active

AI Reasoning: Sources show Andreessen Horowitz led or participated in investments in 2025, including Wired reporting Andreessen Horowitz leading a round for Thinking Machines Lab in July 2025, and other 2025 activity (investments or initiatives such as participation in Mistral AI-related rounds and launching initiatives in April 2025). The most recent known investment linked to Marc Andreessen (via a16z) is July 2025 in Thinking Machines Lab, which is less than 3 months before the reference date, indicating very recent activity.

Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.

Warm Intros from Portfolio Companies

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Applied Intuition

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ElevenLabs

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