01 Advisors is a venture capital firm launched by former Twitter executives Dick Costolo and Adam Bain.
In the SEC regulatory filing, 01 Advisors disclosed it had secured $135 million for its first fund, but was still seeking up to $65 million in additional commitments.
Both former executives have been prominent angel investors over the last several years and have invested in home rental startup Lyric, corporate travel site TripActions, and connected fitness startup Tonal.
Axios reported that former Twitter executive David Rivinus is also involved with 01 Advisors.1