Marc Andreessen 🇺🇸 (@pmarca) — Twitter Score 1000 out of 1000

Marc Andreessen co-founded Andreessen Horowitz and works there as cofounder and general partner, while also serving on the boards of Coinbase and Meta. He previously co-founded Netscape, Opsware, and Ning, and is a member of the President's Council of Advisors on Science and Technology. Marc Andreessen's Twitter Score is 1000 out of 1000 (an Excellent rating) as of July 2026.

Marc Andreessen published "Why Bitcoin Matters" in The New York Times on January 21, 2014, arguing that Bitcoin could serve as a breakthrough Internet-wide payment system, at a time when Andreessen Horowitz had invested just under $50 million in Bitcoin-related startups. He is affiliated with a16z crypto, the dedicated crypto fund launched in June 2018 with $350 million; a fourth fund closed at $4.5 billion in May 2022, bringing cumulative a16z crypto fundraising to over $7.6 billion, and a fifth fund of $2.2 billion was announced in May 2026, pushing the total past $9.8 billion. Andreessen Horowitz reports over $100 billion under management across all funds as of April 30, 2026.

Marc Andreessen has taken a direct role in crypto policy and industry advocacy. He and Ben Horowitz each contributed $22 million to the crypto industry super PAC Fairshake ahead of the 2024 U.S. elections. In July 2024, he sent a $50,000 one-time Bitcoin grant to the AI agent Truth Terminal on X after negotiating terms with the bot. In a December 2024 Joe Rogan interview, he said he personally knows 30 tech company founders who had been debanked in the prior four years, making debanking a central crypto-policy talking point. In 2024, investor Carl Icahn alleged in an open letter that Andreessen Horowitz had conflicts of interest in eBay's 2009 sale of Skype to a private investor group that included the firm.

Marc Andreessen ranks #1 (top 0.1%) out of 389,201 accounts tracked on this platform, with 4,498,853 followers as of July 2026 and 14,993 posts published since 2007. A score of 1000 out of 1000 places him among the 36 accounts on this platform scoring above 900. He has been mentioned by 2,930 accounts, with 11,828 total mentions. His tracked portfolio includes 1kx, 1confirmation, Golden, Curated, Unite and Terminal Of Truths.

Who follows Marc Andreessen on X?

Marc Andreessen's follower base draws from across the crypto and technology sectors. The accounts that follow Marc Andreessen include 5,103 founders, 989 angel investors, 2,239 influencers and 424 VCs, among them Balaji, Brian Armstrong, Chris Dixon, Elon Musk, Erik Voorhees and Laura Shin.