a16z Speedrun
Unknownby Andreessen Horowitz
Top US accelerator program backed by a major venture platform and operator network.
Visit ProgramStartup accelerator with seed investment and intensive mentor support
$500K ($500K for 10% via SAFE)
10% via SAFE; follow-on: $500K follow-on in next round (up to $1M total; per speedrun deal page, within 18 months)
8-12 weeks
Multiple cohorts/year
Periodic
Batch specific
United States
United States
2/14/2026
Summary
a16z Speedrun is an intensive US accelerator that combines early capital with hands-on support from experienced builders and investors. Its platform signal and mentor density make it a high-leverage path for ambitious early teams.
Program Edge
Tight feedback loops with experienced operators and access to a large venture platform.
Best Fit
High-velocity founders building early-stage software products with venture-scale ambition.
Western Top 1% Rationale
Strong brand signal, concentrated mentorship, and high-quality investor access from day zero.
Official Sources
Notable Alumni
Similar Accelerators
Related programs in other directories
Problems worth solving in this space
Ideas on Questd that fit a16z Speedrun's focus.
Source: Andreessen Horowitz
Last verified: February 14, 2026
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