Andreessen Horowitz (a16z) has raised more than $15 billion across five new funds, less than two years after its previous fundraising round, signaling strong investor demand for technology startups amid the rapid adoption of artificial intelligence (AI) and growth in defense-related technologies.

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Fund Breakdown and Strategic Focus

The venture capital giant disclosed the following allocations for its latest fundraising effort:

• $6.75 billion for a growth fund aimed at scaling promising startups.
• $1.7 billion for a dedicated AI infrastructure fund, targeting companies building the backbone of next-generation artificial intelligence systems.
• $1.12 billion for a fund focused on national interest sectors, including defense, housing, and supply chain innovation.

The remaining capital is spread across other strategic and opportunistic investment vehicles designed to maintain a16z’s leadership in the rapidly evolving technology ecosystem.

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Venture Capital in a Challenging Environment

Despite a general slowdown in venture capital fundraising, a16z’s massive haul highlights the firm’s ability to attract significant capital from limited partners. VC fundraising in 2025 faced headwinds, with only $118.6 billion in new commitments—nearly $100 billion lower than 2024—and the lowest number of new funds in a decade, according to PitchBook data.

This makes a16z’s success particularly notable, demonstrating that large, established VC firms remain a magnet for investment, even amid tighter fundraising conditions.

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Focus on AI and National Security

AI and defense technology have emerged as critical growth areas, with the U.S. seeking to maintain a technological edge amid competition from China. Co-founder Ben Horowitz emphasized the strategic importance of these sectors:
“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.”

The firm’s AI-focused funds are designed to scale next-generation AI infrastructure, support high-growth startups, and ensure U.S. leadership in critical technologies. The defense-focused fund will invest in innovations that enhance national security, housing efficiency, and supply chain resilience.

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Andreessen Horowitz: A Silicon Valley Powerhouse

Founded by Marc Andreessen and Ben Horowitz, a16z has long been a major force in Silicon Valley, backing some of the world’s largest tech companies, including Facebook, Instagram, Coinbase, and Lyft. The firm currently manages over $90 billion in assets across all its funds, making it one of the largest venture capital firms globally.

In April 2024, a16z raised $7.2 billion across five funds, showing nearly a doubling of capital raised in less than two years. The new $15 billion fundraising round will allow a16z to accelerate investments in AI, defense, and other strategic sectors that are expected to define the next decade of technological innovation.

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Implications for Investors and Startups

• AI and defense tech remain high-priority sectors for venture capital investment.
• Large VC firms like a16z can raise significant funds even in slow fundraising years.
• Startups focused on AI infrastructure, defense innovation, and critical national projects may see increased access to capital.
• U.S. venture capital continues to play a strategic role in global technological competitiveness.

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Key Takeaways

• Andreessen Horowitz raises $15 billion across five funds.
• $6.75 billion allocated to startup growth, $1.7 billion to AI infrastructure, $1.12 billion to national interest sectors.
• VC fundraising remains subdued, but top firms attract substantial capital.
• Focus areas include AI, defense, supply chain, and housing technologies.
• The firm manages over $90 billion in assets and continues to back major tech companies.