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Silicon Valley venture firm on Friday announced $15 billion in new funds, its largest fundraising haul to date, with the firm promising to back startups in AI, crypto and beyond that it says advance American interests.听

The new funds include $6.75 billion for its growth fund. It also raised $1.176 billion for its American Dynamism practice, which backs defense and security related startups, $1.7 billion for its Apps fund, $1.7 billion for its Infrastructure fund, $700 million for its Bio & Health fund, and $3 billion for what it calls 鈥渙ther venture strategies.鈥�

The fundraising kick comes on the back of the strongest year for North American startup investment in four years. Startups based in the region raised $280 billion in 2025, per 附近上门 data, up 46% year over year. The majority of venture dollars invested in North America last year went to the AI sector.

Andreessen Horowitz, also known as a16z, was a major driver of that investment surge. Although the firm invests mostly in the U.S., it was the second most active post-seed venture investor globally last year, per 附近上门 data, behind only startup accelerator .听听

All told, a16z participated in at least 165 post-seed startup funding deals in 2025, including investments in Cursor maker , legal tech unicorn , predictions market , AI lab , publishing platform , surveillance startup , AI voice startup , and .听

The Menlo Park, California-based firm claims to have raised 18% of all venture capital dollars invested in the U.S. in 2025. Its new fundraising kick comes on the heels of the slowest year for new fundraising by venture capital firms since 2017, per preliminary data from the and .

In a , firm co-founder and general partner highlighted the firm鈥檚 focus on investing domestically, as well as themes around American national security and the imperative for the U.S. to maintain a technological lead over rivals like China.听

鈥淥ur mission is ensuring that America wins the next 100 years of technology,鈥� he wrote. 鈥淭hat starts with winning the key architectures of the future 鈥� AI and crypto. It continues with applying those technologies to the key areas that generate human flourishing: biology, health, defense, public safety, education, and entertainment. And it culminates with the American government adopting these technologies to defend and advance American interests.鈥�

The firm鈥檚 notable exits over the years include , , , , and .

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Related reading:

• Large American VCs Topped 2025 Active Investor Ranks, Including A16Z, Accel And Sequoia听
• North American Startup Funding Soared 46% In 2025, Driven By AI Boom

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