PE Firm · Capital Allocator
01 Advisors
MediumHeadquarters not yet mapped · Website
Last verified
10/11/2026
Firm Overview
53
Portfolio tracked
0
Sectors
0
Regions
10/11/2026
Last verified
Growth-stage technology investment firm founded by Dick Costolo and Adam Bain.
Leadership
Dick Costolo
Managing Partner
Dick Costolo is a Managing Partner at 01 Advisors and the former CEO of Twitter.
Adam Bain
Managing Partner
Adam Bain is a Managing Partner at 01 Advisors and the former COO of Twitter.
David George
General Partner
David George is a General Partner at 01 Advisors and was previously at Andreessen Horowitz.
Portfolio Companies
Source: https://01a.com/portfolio
Portfolio Web Readiness
Not yet assessed
The assessment covers whether AI crawlers and search engines can reach and parse the public site, page performance, transport and security hygiene, and discoverability. 53 portfolio companies have a website on record.
Observational measurements of these companies' public websites only. Not a rating of the companies, their performance, their management, or their investment merit. Not investment advice. Request a correction or removal via Submit Update.
This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with 01 Advisors and does not provide investment advice.
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