About
01 Advisors (01A) is a venture capital firm founded in 2018 by former Twitter executives Dick Costolo and Adam Bain, with David Fischer joining as a partner in 2023. Based in San Francisco and New York City, 01A focuses on investing in technology companies that have achieved product-market fit, typically at Series A and B stages. The firm's partners leverage their extensive experience in scaling companies to assist founders in transitioning from building a product to building a company.
Identity
| Name | 01 Advisors |
|---|---|
| Slug | 01-advisors |
| Type / kind | vc |
| Source _id | agxzfmlsbGlzdHNpdGVyHAsSD0V4dGVybmFsX0VudGl0eRiAgOCJ54CcCww |
Status
| Status | active |
|---|---|
| Last update | 2026-05-17 |
Location
| HQ country | United States |
|---|---|
| HQ country code | US |
| HQ city | San Francisco |
| HQ address | 415 Jackson St, San Francisco, CA 94111, USA |
Web & social
| Website | https://01a.com/ |
|---|---|
| https://www.linkedin.com/company/36083635/ |
Funding
| Total raised | — |
|---|
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