Overview
- Andreessen Horowitz publicly closed the $1.1 billion Machine Age Fund on Friday to back the physical layer of AI, with Ben Horowitz leading the vehicle alongside partners Martin Casado and Raghu Raghuram and senior leaders David Ulevitch and David George.
- The fund will invest across the full hardware stack, including advanced semiconductor designs, next‑generation memory modules such as high‑bandwidth memory, data‑center networking equipment, systems software, power infrastructure, and machines that let AI interact with the physical world.
- A16z frames the move as a bet that hardware, not just models or software, is the main choke point for further AI scale, citing tight HBM supplies and rapidly rising rack and data‑center power demand that have delayed some new facilities.
- The Machine Age Fund supplements earlier a16z infrastructure commitments, layering on top of a prior $1.25 billion vehicle and the firm’s January 2026 fundraising that raised more than $15 billion with $1.7 billion earmarked for infrastructure.
- If the fund speeds investment in chip capacity, memory production, advanced packaging and power systems, it could ease supply bottlenecks, reshape where operators build data centers, and create new industrial and manufacturing jobs tied to AI hardware.