Andreessen Horowitz, also known as a16z, raised $6.75 billion for a fund aimed at scaling up startups, $1.7 billion for an AI infrastructure fund and $1.12 billion for another focused on investing in national interests like defense, housing and supply chain, it said.
The fundraising, the firm’s largest ever, represented more than 18% of all venture capital dollars allocated in the U.S. in 2025, a16z said in a blog post.
Investments in tech and AI-related companies have shot up in recent years amid an AI boom, with the U.S. doubling down on keeping its global technological lead amid growing competition from China.
“The technology landscape that we will be investing into is… intensely competitive with China… At this moment of profound technological opportunity, it is fundamentally important for humanity that America wins,” said Ben Horowitz, a16z co-founder and general partner.
A16z was seeking to raise a roughly $20 billion megafund for AI-focused growth-stage investments, Reuters exclusively reported last April. In October, the Financial Times reported that the firm was targeting $10 billion for its next wave of tech investments.
It is one of Silicon Valley‘s biggest venture capital firms and has backed industry giants such as Facebook, Instagram, Coinbase and Lyft, making it a key force behind the global dominance of U.S. tech companies.
In its last major fundraising in April 2024, a16z raised $7.2 billion across five different funds. The firm currently has over $90 billion in assets under management across all its funds.