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.comInvestments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Sourcerer | Jul 2026 | Seed | Co-investor |
| Jenny Duan | Jun 2026 | Seed | Co-investor |
| Claire Health, Inc. | Jun 2026 | Seed | Co-investor |
| Claire Health LLC | Jun 2026 | Seed | Co-investor |
| Clair Health | Jun 2026 | Seed | Co-investor |
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.