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a16z speedrun

a16z speedrun

Californiaa16z.com

Overview

a16z Speedrun is the flagship accelerator program from Andreessen Horowitz (a16z) for early-stage (pre-seed/seed) startups. It is a highly selective, 12-week in-person program that focuses on companies at the intersection of technology, AI, gaming, and entertainment. Participants receive capital, mentorship from a16z experts and industry leaders, and access to a network of founders, culminating in a Demo Day. The program, which launched in 2023, has multiple cohorts per year and has invested over $180 million across more than 150 companies.

Portfolio Companies

130

Website

a16z.com

Investments

a16z speedrun investments
CompanyDateStageLead
SourcererJul 2026SeedCo-investor
Jenny DuanJun 2026SeedCo-investor
Claire Health, Inc.Jun 2026SeedCo-investor
Claire Health LLCJun 2026SeedCo-investor
Clair HealthJun 2026SeedCo-investor

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersCalifornia
Year FoundedN/A

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